Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

Learn about lateral earthquake motion and its effect on high rise buildings in this simple 4th grade earth science experiment.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

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

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Help your child add some flair to the family garden with pencil pinwheels!

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

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.

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Discover whether cold or hot water from the faucet will boil faster on the stove.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

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

In this science fair project, young children notice and track changes in trees throughout the year.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.