An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

In this challenge, students are tasked with creating an insulated cup that will keep beverages colder for longer than a regular cup.

Learn how to relight a candle by lighting the vaporized wax in the smoke, and test how various kind of wax and candle brands relight differently.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

In this experiment you will replicate the mummification process by making a hot dog mummy.

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

Science fair project that demonstrates that rotting food attracts insects that lay eggs on it.

The objective of this sociologically-inclined experiment is to evaluate whether kids' toy preferences are hardwired or develop as they grow.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Research optical illusions and human auras. Understand why the probable cause of perception is mach bands.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

Your kindergartener will have a blast helping you craft these fun, eco-friendly potted place cards.

This activity is a fun way to "go fishing" with your preschooler, while learning about the concepts of freezing and melting.