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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!

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Using a toy race car kids create a visual model of the Doppler Effect.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

Reinforce your child’s understanding of the alphabet by helping them construct all of the letters using pipe cleaners.

This science fair project idea investigates how magnetism can defy the force of gravity.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

This science fair project will help students learn about non-vascular plants, such as mosses.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

In this activity, your student will be invited to build a chair out of building blocks that is designed to meet the specific size and shape of a small doll or toy figure.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

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

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

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.

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

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

In this activity your child will create their very own marble maze!