This science fair project idea investigates the difference in reaction times between boys and girls.

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Is it a square or a circle? See if you can trick your friends with this zany science project!

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

In this project students experiment with making music using only glasses of water.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

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

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Take a nature walk in your backyard or local park to find one object for every letter of the alphabet. Then put them together in this handy nature book.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

This science fair project idea examines which type of insulation holds in the most heat.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Explore if planting seeds in a certain direction will affect how fast it germinates.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Plants and light seem to be good buddies, but how far does the friendship really go?

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

First graders are learning basic addition and subtraction math facts. Practice in the sandbox with this fun outdoor math activity!

Use sticks and stones to create create an outdoor version of tic-tac-toe!

Introduce your child to the wonders of colorful chemistry with this simple food coloring project.

This science fair project idea investigates if webbed feet help a duck (and others) swim.