Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

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

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

Find out whether a longer airplane will fly farther or a wider paper airplane.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea examines the reason boats are shaped and engineered.

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.