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

This fun activity makes use of pasta shells, paint, and glue make a crab while your child learns about this unique creature.

Demonstrate how to tell the age of an egg without having to crack it open.

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

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

Follow in the footsteps of movie character legends as you walk your little one through the steps of becoming a junior archaeologist.

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

Show your child how and why the microwave works, while demonstrating just how strangely foods can behave while inside the crazy cooker.

Do this activity to help your kids see how seeds contain "baby" versions of big plant stems, roots, and leaves.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Build a bird feeder science craft that brings birds to your yard, and a smile to the whole family's face.

Help your child get to know the least-appreciated of the five senses, the sense of smell, with a smelling station.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Use the textures found in nature to create your own stationery! This fun, outdoor activity will no doubt inspire your child's creative side.

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

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

If your child aspires to be the next Frank Lloyd Wright, we've got some tips on building sand castles that last.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!