This science fair project idea provides evidence that air is everywhere and takes up space.

Want to boost math and science learning? Take a bug expedition and give your first grader practice observing and charting what they see.

Reuse and recycle cardboard tubes to make spooky spiders, kooky caterpillars, wacky worms, and more.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Your child will decorate a headband with any bugs they can think of, then they'll add antennae so they can pretend to be a bug!

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Let your young adventurer go bug hunting in the great outdoors with their very own bug net!

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

Beetles come in many shapes and colors. Here's how your second grade child can create his own beetles to paint and play with!

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

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

Creating a home for a toad is an easy and fun project for kids. Here's how to make your very own toad abode.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

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.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

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.

Teach your child how to make an all-natural, yellow-brown dye, using just walnut shells and water. This deep dye can be used on textiles, art, and wood.

Word color association is just a fancy way to talk about the way we connect colors with words.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

Give some of your local ladybugs a warm place to stay for the winter by making a ladybug home with recycled materials.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

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

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.