Challenge
It’s the month of Febrrrrrruary according to the weather. It’s definitely providing some cold temperatures as it starts and will most likely continue. How do you stay warm when going outside in this weather? What makes you stay the warmest? Do you wear different types of clothes during the winter for different temperatures? How come? What types of fabrics are used in winter clothing? After thinking about all these questions, think which hat, glove, scarf, sock, or boot would keep you the warmest. That is your challenge this month, to find out which of these items will help you stay the warmest. Gather a bunch of different types of these in your classroom or at home to help you decide. Your ultimate challenge is to construct a method to fairly test which items will keep you the warmest. Be sure to make predictions, collect data, and share your findings.

Your method does have some criteria and constraints. Make sure to use different types of gloves, boots, scarves, and socks, the same type of thermometer, to reset the thermometers to room temperature, to allow the same amount of time when testing each item, etc.  

Materials

• thermometers
• variety of mittens/gloves
• variety of hats
• variety of scarves
• variety of boots
• variety of socks

​
Hints and Tips for Success

1. Allow students planning and discussion time of how they are going to set up their experiments to be sure they are doing fair trials.
2. After planning and discussion, allow student groups to create their data charts for their experiments. Students can share their data charts and ideas of fair testing as needed, which can allow other groups to adjust their thinking.
3. For differentiation, adjust the amounts of items to be used, provide guidelines for fair testing/amounts of time to test, provide the data charts, etc.
4. After experiments, discuss results as a class to see which item keeps the body the warmest. (The data should show that the items do not make the thermometer show much, if any, in difference in temperatures). Have students ask questions after analyzing to gather their thoughts.
5. Inform class that body temperature creates the heat and these items help trap the heat to keep the body warm.
6. Have students redesign their experiments with this notion in mind repeating steps 1-4 to complete the challenge.
7. Connect to science by discussing energy, thermal energy, properties of materials, heat, energy transfer, temperature, and weather.
8. Connect to ELA by reading The Mitten by Jan Brett or How Heat Moves by Sharon Coan, or The Energy That Warms Us: A Look at Heat by Jennifer Boothroyd to explore some concepts around heat.

​Challenge
Happy New Year! It was officially winter on December 21st and that means the weather will continue changing this month to be more winter-ish. Colder temperatures could mean snow and ice and the possibility of water freezing on the roads and sidewalks. How does this happen? What makes the snow/water turn to ice? Better yet, what is the best way to get rid of the ice on the sidewalks or roads to prevent accidents? Snowplows do their best to prevent accidents but what are they spreading on the road? Is there something better? What do you spread on your sidewalk to get rid of the ice? Which dissolvent works the fastest? Your challenge is to figure out which ice melter is the best.

Your challenge does have some criteria and constraints. The ice cubes being used for the test should be from the same water source, the same approximate size, and conducted at the same time of an experiment. Make sure to also continually check the experiment and during the same time intervals.

Materials

• ice cube trays
• small containers for the ice cube melting
• ice cubes
• measuring device
• magnifier
• sand, dirt, tiny pebbles
• various ice melters and/or salt (non-iodized salt, iodized salt, kosher salt, rock salt, sea salt, etc. and/or store-bought ice melts)

Hints and Tips for Success

1. Allow students planning and discussion time by having them examine the various melters to see how they are differently composed such as size, shape, color, and even names. A magnifier or microscope might help with some of these items.
2. After examining, allow student groups to plan their experiment. For the first experiment, you may want students to test each melter separately on small pieces of ice to get an idea on how each melter reacts to the ice. For the following experiments, allow students to mix different melters together and add any other materials they think will help the process.
3. For differentiation, adjust the amount of materials available and allowed to use, add any additional materials, take away certain materials, allow students to shake their containers. Adjustments could be made to make it more challenging or simpler.
4. Make sure to standardize the experiment and the amount of melter to use. For example, if students want to individually test out all of the melters first, they should use the same amount of the melter on the ice. Also, a standardized way of measuring the melted ice needs to be considered. Students may think of finding the mass of the ice before and after it’s been melted.
5. Discuss pros and cons of the different ice melters and of the experiment. For example, one might be more expensive than another or in our experiment the temperature is warmer inside than when being outside so the ice could have melted not because of the chosen melter.
6. Connect to science by discussing weather, properties of matter, or chemistry.
7. Connect to ELA by reading about melting and freezing such as Why Does Ice Melt (How? What? Why?) by Jim Pipe, which has additional activities on melting and heating, or Snowplows by Rebecca Pettiford to discover how a snowplow gets the job done.

 

Challenge
This month's challenge is a little different than previous months'. It is based on the Hour of Code! The challenge is to have every student in your classroom complete at least an Hour of Code in the month of December.

The Hour of Code initiative takes place each year during Computer Science Education Week, which is December 3-9. You can experience this at any time of the year, though! It is held annually in recognition of the birthday of computing pioneer Admiral Grace Murray Hopper (December 9, 1906). 

The Hour of Code started as a one-hour introduction to computer science, designed to demystify "code", to show that anybody can learn the basics, and to broaden participation in the field of computer science. It has since become a worldwide effort to celebrate computer science, starting with 1-hour coding activities but expanding to all sorts of community efforts. 

Head here, https://hourofcode.com/us/learn, to checkout the free tutorials and experiences for all grade levels.

Additional information about completing the challenge and on the initiative can be found at ​https://hourofcode.com/us.

​Happy Coding!

Challenge
Apples are the fruit of the season, autumn. There are so many ways to eat an apple, from apple cider to apple pie. Apples can be picked right from the tree or off the ground if not too severely damaged from their descent. Certain technology has been engineered to pick apples from trees. Most look like 3/4 of a small wire cage to grab and catch the apple on the end of a long handle. But, what about picking apples up off the ground? Is there something better that would work for this task? Your challenge is to construct a device for lifting an apple or more off the ground. What will be the best materials to use? What already exists in the real world that lifts items? Would it be better to lift more than one apple at a time?

Your apple picker upper does have some criteria and constraints. Only the materials provided can be used in your design. Your device has to be able to lift an apple 30 cm off the ground. The device must lift the apple without too much assistance (try to use simple machines to do the work).  

Materials

• apples
• masking/duct tape
• cardboard pieces
• construction paper
• yarn
• paper clips
• clay
• straws
• cups
• any other additional materials

Hints and Tips for Success

1. Allow students planning and discussion time by having them experiment with the items to see how flexible, movable, and heavy they are. Also, let students test how heavy an apple is.
2. After experimenting, allow student groups to plan their design. Include as many ways to improve their apple picker uppers as needed.
3. For differentiation, adjust the amount of materials available and allowed to use, add any additional materials, take away certain materials, show them different uses of simple machines, include more apples to be picked up at once, change the height needed to be lifted. Adjustments could be made to make it more challenging or simpler.
4. Make sure to standardize the platform students are building on. For example, if students are building a type of crane/pulley system, be sure to make it fair so they are placing it the same level above the ground.
5. Discuss pros and cons of different simple machines or ideas of apple picker uppers.
6. Connect to science by discussing gravity, weight, mass, weight bearing loads, strength/properties of materials, forces, Newtons.
7. Connect to ELA by reading Pull, Lift, and Lower: A Book About Pulleys or Scoop, Seesaw, and Raise: A Book About Levers both by Michael Dahl, to explore some concepts around simple machines and for students to gather ideas about what they could design.

 

Challenge
It’s September and time to get back to school! At the beginning of the year, establishing routines is a must. Why not include collaboration and teamwork as part of that routine? This month’s challenge provides the opportunity to focus on teamwork. As they say, teamwork makes the dream work. Your challenge is to work together to build two exact structures out of building materials. Half of the team will get a structure already built or not, but then guide the other half of the team to build the same thing.

Your team does have some criteria and constraints. Your team will consist of 4-6 people. Both team halves (2-3 people) will get identical building supplies. But your team cannot see each other or the building materials. There should be a divider put between the team halves, so the structures cannot be seen. One half is the guide team instructing the other half to build the same structure.

Materials

• building material sets (2 for each team)
  • K’nex
  • Legos
  • Blocks
  • Lincoln logs
  • Tinker toys
• dividers

Hints and Tips for Success

1. If students are unfamiliar with the building materials, have them interact with the materials so they know how they fit together and can be utilized to build structures.
2. Have the structures pre-built for the teams. Hand them out secretively so the other members of the team cannot see it. Then have teams start. The guides with the pre-built structure guide the other team members (builders) to construct the exact same structure they have. Having the same pre-built structure for a whole group keeps the challenge consistent.
3. Or hand the identical materials to the guides and builders. Put up the dividers between the team members. Instruct the guides to build a structure while communicating with their builders to build the same thing. The guides could also build their structure first, then communicate with the builders to do the same.
4. Have teams change roles after the first round and complete the challenge again.
5. Debrief the challenge with the teams. How were the members or each team utilized? What was frustrating about the challenge? How did you work through these frustrations? What strategies did you use to simplify the challenge? How did you know when other members needed help? What did you do to help them? Why can it be difficult working as a team? What makes it easier to work in a team? What did you learn from this activity about teamwork? 

Challenge
One activity my family and I just did this summer was a water balloon toss! We filled many balloons with water, but all the balloons had different amounts in them. We weren't being scientific at the time because our main goal was fun. But during the toss competition, I started noticing some differences. Some water balloons broke very easily when tossing back and forth. Other water balloons bounced off hands and off of concrete like bouncy balls! How could this be? What was the difference? This made me think of this month's STEM Challenge. Your challenge is to construct the best device for catching a water balloon without it breaking during a water balloon toss. What will be the best material to use? Are there items already designed or things from nature you could replicate? How far will your design last?

Your water balloon catcher does have some criteria and constraints. The water balloon being tested should be about the same size for all designs. The same distance should be used when tossing back and forth to the water balloon catcher. 

Materials

• water balloons
• netting
• assorted plastic bags
• other balloons
• cardboard pieces
•  assorted fabrics (old shirts)
• cotton balls/stuffing
• rubber bands
• tape
• string/yarn
• paper

Hints and Tip for Success

1. Allow students planning and discussion time by having them experiment with the items to see how flexible, movable, heavy they are, and how they might be used to create a catcher.
2. After experimenting, allow student groups to plan their design. Include as many ways to improve their catchers as needed.
3. For differentiation, adjust the amount of materials available and allowed to use, add any additional materials, increase or decrease the water in the balloon being tossed, give specific dimensions the catcher must be. Adjustments could be made to make it more challenging or simpler.
4. Determine a process for tossing the water balloon to the catcher for all groups so it is consistent,  what to do if their catcher works (greatest distance it will work), and agree on how the balloon will be tossed (overhand, underhand, lots of arc, little arc).
5. Discuss properties of each material and ask students to think about the properties of a water balloon (what makes it break easily or bounce? does the color of the balloon change these properties?)
6. Connect to engineering by discussing properties of materials, designing any type of container for holding water, or developing ways to transport fragile items safely.
7. Connect to ELA by reading Balloon Trees by Danna Smith, where it takes the reader through the journey oh how a balloon starts as a tree to its completion.  A fiction book is Harvey Potter's Balloon Farm by Jerdine Nolen that explores how a farmer grows balloons.

Challenge
The sun emits harmful UV rays year-round. Even on cloudy days, up to 80 percent of the sun’s harmful UV rays can penetrate your skin. Sunlight consists of two types of harmful rays that reach the earth — UVA rays and UVB rays. Overexposure to either can lead to skin damage. In addition, here are other effects of what each of these rays can do:

• UVA rays (or aging rays) can prematurely age your skin, causing wrinkles and age spots, and can pass through window glass.
• UVB rays (or burning rays) are the primary cause of sunburn and are blocked by window glass.

So how do you prevent damage from the sun? Hopefully, you answered with something along the lines of using sunscreen or SPF (sun protection factor). There are so many different versions! Which is the best? How long does sunscreen work in the sun? Does the brand matter? These are all questions that you can try out for this month’s STEM Challenge. But just remember, no sunscreen is able to block 100 percent of the sun’s rays.
For criteria and constraints, it’s up to you to figure them out! It’s suggested that you put the same number of beads in the same kind of bag. The testing protocols are yours to choose, but just make sure everything you conduct is a fair test.

Materials

• plastic UV beads (similar to these https://www.amazon.com/dp/B01LZFI7AF/ref=sspa_dk_detail_1?psc=1&pd_rd_i=B01LZFI7AF&pf_rd_m=ATVPDKIKX0DER&pf_rd_p=1713835751726239774&pf_rd_r=5ZBP9BH4RE8NTT7QE165&pd_rd_wg=Ag2T5&pf_rd_s=desktop-dp-sims&pf_rd_t=40701&pd_rd_w=mByta&pf_rd_i=desktop-dp-sims&pd_rd_r=ac5f2b23-807f-11e8-94ad-0d6a86c107a2)
• marker
• plastic sandwich bags
• other materials as needed
• various sunscreens with various SPF if needed

​
Hints and Tips for Success

1. Allow students planning and discussion time for creating fair tests of how they will answer the question of their choice. Evaluate trials to ensure there is fairness and equity. Questions to consider but are not limited to: Are all brands of a certain SPF the same protection? Can you be in the sun longer with a different SPF? What’s the best sunscreen? How often should you reapply sunscreen? Does there come a time limit when SPF doesn’t matter?
2. After discussing and creating fair tests, allow student groups to plan their trial with the materials provided. Include as many ways to improve their trials as needed.
3. For differentiation, provide the question students need to answer, provide the fair test steps, have all groups working on the same question, limit the amount of questions in the class. Adjustments could be made to make it more challenging or simpler.
4. Make sure groups are measuring the same amount of sunscreen for each trial as close as possible, using the same number of beads for every trial, laying the beads out the same number of minutes/hours in the same location, and labeling each bag with the brand and SPF of the sunscreen. Students should be trying to answer the question stated for their challenge.
5. Determine a process for adhering sunscreen to the beads for a fair test. One way is to put the beads in a sandwich bag, flatten the bag, and apply an even amount of sunscreen over the bag.
6. Connect to science by discussing the effects of sunlight or UV rays.
7. Connect to ELA by reading Sammy Learns About Sunscreen by Manisha Shelley Kaura, Sunscreen Irene by Larry and Jen Cheifetz, or Hey! Don’t Forget the Sunscreen by Kimberly Kennedy. Each book provides examples of the importance of wearing sunscreen when going outside with helpful hints.

Challenge
The first parachute jump was taken by Garnerin in Paris in 1797. Since then, engineers have been designing many types of parachutes for different needs with the right material and attachments. June is a great month to get outside and go sky diving with parachutes! For this challenge, you won’t be building a parachute for yourself, but for a toy to safely reach the ground. Your challenge is to construct the best parachute for the safest landing for a plastic figurine. What will be the best material to use? What do parachutes look like? What type of string should be used to attach to the figurine? How large should the parachute be and how long should the strings be? What is the most effective parachute for the figurine?

Your parachute does have some criteria and constraints. Only the materials provided can be used in your design. Your parachute has to be connected to the figurine the same exact way for all tests. The same height should be tested every time.  

Materials

• Plastic figurines: all similar (army men or Lego minifigures)
• masking tape
• plastic bags
• different sized coffee filters
• tissue paper
• t-shirts
• yarn
• string
• fishing line

Hints and Tips for Success

1. Allow students planning and discussion time by having them experiment with the items to see how flexible, movable, and heavy they are. Students could test out materials by cutting them the same size and dropping them to see how they move through the air.
2. After experimenting, allow student groups to plan their design. Include as many ways to improve their parachutes as needed.
3. For differentiation, adjust the amount of materials available and allowed to use, add any additional materials, increase or decrease the weight the parachute needs to carry, give specific dimensions the parachute must be. Adjustments could be made to make it more challenging or simpler.
4. Make sure groups are measuring their parachutes sizes and string lengths, timing the drops, and observing the effectiveness of their parachutes for analyzing purposes.  Students should be trying to answer the questions stated in the challenge.
5. Determine a process for attaching the parachute to the figurine for all groups so it is consistent,  inform students of the height which the parachute will be dropped, and agree on how the parachute will be dropped (pinching the middle of the parachute, holding it with and outstretched arm, and dropping it, instead of throwing, works best).
6. Discuss properties of each material and ask students to think about the different parachutes they might have seen. Students can research the different types of parachutes (sizes, shapes, materials, forms) and how they are used in the real world.
7. Connect to science by discussing gravity, air resistance (drag), and/or properties of materials.
8. Connect to ELA by reading I Fall Down by Vicki Cobb, where it takes the reader through different stop-and-try-it moments to better understand gravity.  Nonfiction books about parachutes or gravity would fit well with this concept as well.

Challenge
This month is the 144th Kentucky Derby. The best horses will race 1.25 miles around the track at Churchill Downs. Who will help them guide the track? The jockey that rides the horses will do this. A jockey must be light in weight but still be able to control the horse. This a large factor in the competition and winning the race. So for this month, the challenge is going to be creating and designing a mock jockey for a mock horse! How can you make your jockey aerodynamic? How will the jockey stay on the horse? Where should the jockey sit? What will be the race conditions? Your challenge is to think about these questions and use all your given materials to build a jockey that will sit on top a matchbox car (your horse) and goes the fastest speed or longest distance.

Your jockey does have some criteria and constraints. Only the materials provided can be used in your design and ALL of them must be used. You should try to use the same matchbox car as everyone else in the class. The jockey must stay on the car for the entire race. You cannot change the car in any way. The race must be conducted as fair as possible.   

Materials

• 1 matchbox car
• 4 toothpicks
• 2 index cards
• 1 foot thread/string/yarn
• 2 rubber bands
• 5-feet string piece
• 1 foot tape
• stopwatch
  

​
​Hints and Tips for Success

1. Allow students planning and discussion time by having them experiment with the items to see how flexible and movable they are. Students could test out cars to time them before their jockey is attached.
2. After experimenting, allow student groups to plan their final design. Include as many ways to improve their jockey and race time as needed.
3. For differentiation, adjust the amount of materials available, items needed to use, add any additional materials, take away materials, have students choose from a variety of cars, have the jockey need to look like a person. Adjustments could be made to make it more challenging or simpler.
4. Create some sort of race track by using a wide piece of cardboard or other sturdy material set up like a ramp. This way multiple cars can be placed on the track at a time. Create a gate for the cars so that when lifted, all the cars start at the same exact time.
5. Discuss if students would like to race to see which car and jockey is the fastest over a certain distance or travels the longest distance after leaving the ramp.
6. Connect to science by discussing forces, air resistance, friction, speed, or variables.
7. Connect to math by having students graph their times or measure the distance their cars and jockeys travel after each race.
8. Connect to ELA by having students create a broadcast of the event as announcers of the race. Students can use a green screen app to broadcast and provide a photo finish for tight races.

Challenge
The windiest month of the year is usually March. The second? April. It’s a little nicer in April than in March to fly kites, which is why it’s the National Kite Month. Besides flying kites, what else does the wind help us do? One thing that has become more common is using the wind to generate power (energy) with windmills. Windmills will be involved in the challenge this month. The challenge is to build windmill blades that generate the most power. How many blades should there be? What types of blades catch the most wind? Use your skills to find out!

Your windmill blades do have some criteria and constraints. Only the materials provided can be used in your design. The blades can only be a certain height determined by the height of the windmill base. The blade spokes need to be coffee stirrers or craft sticks, but part of the blade that catches the wind can be any material.

Materials

• index cards
• tissue paper
• toothpicks
• tape
• string
• foam ball
• wooden skewer
• empty juice carton
• small paper cups
• craft sticks
• coffee stirrers
• paper
• aluminum foil
• wax paper
• small 3 speed fan
• washers, coins, marbles, or other small objects for weights

​
Hints and Tips for Success

1. Allow students planning and discussion time by having them experiment with the items to see how flexible and movable they are. They could also research different windmills to study the blades, how they are positioned, how many there are, or how they are angled.
2. After experimenting, allow student groups to plan their final design and decide which materials would be best. Include as many ways to improve their windmill blades as needed.
3. For differentiation, adjust the amount of materials available and allowed to use, add any additional materials, provide examples of blades that work, show them the different angles, start with little weight in the cup. Adjustments could be made to make it more challenging or simpler.
4. To make the windmill, fill the empty juice carton with heavy items to hold it in place. Poke the wooden skewer through the top of the juice carton and wiggle it around so the hole is big enough for the skewer to twist freely. Secure a piece of string the length of the carton to a small cup using tape or another fashion. On the dull end of the skewer, tie the other end of the string holding the cup. The students should be able to add weights to the cup. When the skewer twists, it should now cause the string to wrap around the end, raising the cup.
5. Give groups of students a foam ball to use as their center. This ball will be attached to the front of the windmill base, opposite the string and cup. Demonstrate how the windmill works with the students by attaching the foam ball and twisting it. Remind them that their goal is to cause the windmill to generate power by lifting the cup with weights. The fan should be placed in front of the windmill about 1 foot away.
6. Challenge the students further by using different speeds on the fan and adding more weight to the cup if they succeed.
7. Connect to science by discussing weather conditions including severe weather, speed of an object to the energy of the object, or energy and natural resources.
8. Connect to ELA by reading The Boy Who Harnessed the Wind by William Kamkwamba and Bryan Wheeler, where the main character builds a windmill to help provide a water well for the village. Nonfiction books about wind or windmills would fit well with this concept as well.

Challenge
Leprechauns should be making their rounds this month, hiding under rainbows with their pot of gold and four-leaf clovers. Just imagine if you were able to get close to a leprechaun and all its gold. What would you do? Steal his gold? Well, that’s going to be part of the challenge this month. We aren’t going to trap the leprechaun but try and take the gold right from under his nose. Your challenge is to design a tool that will be able to grab the pot of gold from a distance as if you were in the bushes. What will you design, a lasso, a grabber, a sticky hand, a long hook?

Your gold taking tool does have some criteria and constraints. Only the materials provided can be used in your design. The tool must be able to reach at least 2 feet. You will also want to make sure the pot of gold doesn’t tip over and spill any gold. The more gold in the pot when it reaches you the better!

Materials

• pot of gold (medicine cup with small items)
• craft sticks
• straws
• tape
• string
• index cards
• clay
• cardboard
• toothpicks
• pipe cleaners
• brass fasteners

​
Hints and Tips for Success

1. Allow students planning and discussion time by having them experiment with the items to see how flexible and movable they are.
2. After experimenting, allow student groups to plan their final design. Include as many ways to improve their contraption as needed.
3. For differentiation, adjust the amount of materials available or allowed to use, add any additional materials, show examples of grabbers, change the distance of the pot of gold, or not to have the gold still left in the pot for success. Adjustments could be made to make it more challenging or simpler.
4. Make sure to be clear about where the pot of gold is sitting and where the students are hiding in the bushes. Create a start line and an X to mark the spot of the pot for each group.
5. Make a score chart with them to show how much each gold coin is worth, the pot is worth, getting them all, or any other possibilities they can imagine. Have them attempt to get the pot of gold three times tracking their score for each attempt. Allow them to redesign or fix their tool between attempts if needed.

Challenge
Groundhog's Day is an annual tradition held in Punxsutawney, PA  on February 2. On this day, Punxsutawney Phil, comes out of his burrow on Gobbler's Know to predict the weather for the rest of winter. If he sees his shadow, there will be 6 more weeks of winter. If he doesn't see his shadow, it will be an early spring! This year will be Phil's 132nd prognostication or prediction. What will it be? 
This month's challenge relates to Phil and his shadow.  Your challenge is to build a device that allows Phil to pop out of his burrow and when he is out, his shadow must be 10cm long.

Your design does have some criteria and constraints. When Phil is in his burrow, he must be completely down in there. When he is popped out of his burrow, he must be fully popped. For example, if pressing down on a lever to pop Phil out, the lever must be pressed all the way not just to make the shadow 10cm long. The light being used should be in a fixed position. Testing of Phil should also be done in the same spot.

Materials

• cardboard boxes
• craft sticks
• cardboard scraps
• rubber bands
• tape
• scissors
• glue
• cardstock
• copy paper
• springs/wire
• blocks
• connecting cubes
• string

Hints and Tips for Success

1. Allow students planning and discussion time by having them experiment with the items to see how flexible and movable they are and what they want to use for their "groundhog."
2. Allow students to place items in front of the light to see the size of the shadow the item makes.
3. After experimenting, allow student groups to plan their final design. Include as many ways to improve their design as needed.
4. For differentiation, adjust the amount of materials available, add any additional materials, take away materials, give every student a box with a hole on top to be used as the burrow, show them items such as seesaws, levers, pop-up cards, jack-in-the-boxes, pulleys, reels, give every group the same groundhog, have each groups make their own groundhog. Adjustments could be made to make it more challenging or simpler.
5. Make sure to set up a testing station where there will be a light shining on to the burrow and an X to mark the spot of where the burrows will be. 
6. Discuss using a ruler to measure 10cm or have strands of string/paper pre-cut that are 10cm.
7. Connect to science topics by correlating this challenge to weather, weather forecasting, measuring, properties of light, shadows, patterns of the Sun.
8. Connect to ELA by reading from the plethora of books about Groundhog's Day and the tradition. Nonfiction books about the previous mentioned science topics or groundhogs would be a great fit as well.  Connect to myths, legends, and traditions since this holiday has background ideas with these topics.
9. Visit http://www.groundhog.org/ for the official website of Punxsutawney Phil to read more information about the tradition.

Challenge
Last month the challenge was trying to keep things warm, but this month the challenge is going to try to keep things cold! The weather sure does change a lot in New York from cold and freezing to above freezing and sunny during the winter. When it was snowy, you might have built a snowman, but now it might have melted. What if you wanted to keep it around? Do you think you’d be allowed to put it in the freezer? We are not going to try and build a large enough freezer for a snowman, but a cooler that will keep ice or snow from melting for a period of time if you brought it inside.

Your cooler does have some criteria and constraints. Only the materials provided can be used in your design. You are only allowed to use a certain amount of materials per group noted in the list. The cooler has to be one that is easy to open to get the snow or ice out.  

Materials

• same size ice cube or amount of snow
• 1-foot masking tape
• 24x12 inch aluminum foil piece
• 12x12 felt piece
• 5 rubber bands
• 5-feet string piece
• 1 sheet copy paper
• 1-gallon Ziploc bag
• 1-pint Ziploc bag
• handful of Styrofoam packing peanuts
• 4 foam plates/trays
• 10 paper clips
• 10 craft sticks

​
Hints and Tips for Success

1. Allow students planning and discussion time by having them experiment with the items to see how flexible and movable they are. Students could test out materials by placing snow or ice cube in each to see how long it lasts with the individual item.
2. After experimenting, allow student groups to plan their final design. Include as many ways to improve their contraption as needed.
3. For differentiation, adjust the amount of materials available and allowed to use, add any additional materials. Adjustments could be made to make it more challenging or simpler.
4. Make sure to be using about the same size ice cubes and amounts of snow. Place all coolers in the same area for fair testing. Designate a specific amount of time to wait before opening containers (1-2 hours is the average time).
5. Discuss properties of each material and ask students to think about the different coolers they might have seen to try and emulate those.
6. Connect to science by discussing solids and liquids, reversible and irreversible changes with solids and liquids, freezing/melting points, thermometers, Fahrenheit, and/or Celsius.
7. Connect to ELA by reading The Snowy Day by Ezra Jack Keats, where the main character, Peter, puts snow in his pocket but it isn’t there in the morning. Nonfiction books about freezing and melting would fit well with this concept as well.

Challenge
Do you eat more soup in the summer or winter? Do you eat more ice cream in the summer or winter? Do you drink more hot chocolate in the summer or winter? Do you drink ice cold beverages more in the summer or winter? Why do you think this? As the seasons change, our clothes change and so do our diets! In the summer, our diets include colder things to help cool us down. In the winter, our diets include more warmer items to help keep us warm. In the summer, we use coolers and ice to keep things cold. In the winter, what do we use to keep things warm? If you can’t think of something, well that means it’s time to engineer! Your challenge this month is to build a device that fits around or over a paper cup to help keep the contents inside warm for a longer period of time than normal.

Your device does have some criteria and constraints. Only the materials provided can be used in your design. The materials can be placed anywhere outside of the cup but not on the inside of the cup. It can have a cover over the top, but the cover needs to be able to fit the thermometer inside and removable so liquid or food can be put in the cup.

Materials

• paper cups
• thermometers
• water
• rubber bands
• aluminum foil
• felt sheets
• paper
• newspaper
• foam sheets
• wax paper
• thin cardboard sheets
• pipe cleaners

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Hints and Tips for Success

1. Allow students planning and discussion time by having them experiment with the items to see how flexible and movable they are.
2. After experimenting, allow student groups to plan their final design. Include as many ways to improve their thermal insulator as needed.
3. For differentiation, adjust the amount of materials available, show ideas of how to construct a lid or koozie like device, show pictures of coffee-to-go cups with sleeves, take away any of the materials, change the amount of materials needed to be used, set a temperature requirement of loss to not go below. Adjustments could be made to make it more challenging or simpler.
4. Make sure to be using all the same cups, same amount of food/water in each cup each time, and always have a control cup for every group. Explain the importance of the control cup to the students.
5. Try to use warm-hot water so it is not too hot for students to touch in case of spillage.
6. Connect to science and ELA by having students discussing/figuring out how they could perform their investigation and writing the necessary steps to conduct it. Students can also write their conclusions for their device (or the best device) using evidence of why someone should use it.
7. Connect to math by practicing reading a thermometer and graphing the results. Students can also use the data to figure out temperature loss, practice adding and subtracting (especially if using a digital thermometer with decimals), older students can convert from Fahrenheit to Celsius, or practice finding range, median, mode, mean with the class data.