A fun summer activity for all ages is using sidewalk chalk! Chalk and chalkboards have also taken off in forms of decoration in homes and in businesses. Have you ever wondered how to make chalk? What ingredients do you think make chalk? Which kind of chalk is the best? Do different brands have different recipes? All these questions can be answered with this month's challenge. Your challenge is to follow different recipes to make chalk and determine which chalk is it best. You can also compare the different chalks made to existing chalk brands.
Your chalk making does have some criteria and constraints. You should follow the recipes given without altering them. The chalk should all be made the same size and same amounts. For tests of chalks, the same routine and test should be done as accurately and fairly as possible.
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