Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

Help your kindergarten science maven explore the water cycle without getting everything wet.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Try this chemistry experiment with your curious kid and get some "shocking" results!

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.