How much does 100 weigh? Play this fun guessing game with your child to commemorate the 100th day of school.

Figuring out fractions can be a challenge! But with this game your child will become more comfortable converting fractions after only a little practice.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.