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

This science fair project explores how osmotic pressure forces water through the root up into the plant.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

This science fair project idea investigates how the shape of an object affects drag.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

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.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Teach your child how butter is created by shaking up cream the old-fashioned way.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Jazz up your patio or backyard with hip and quirky planters made from simple Mason jars.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

Grow these wheatgrass and alfalfa friends and watch their hair spring up in just a couple days!

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!

This activity is a great way to stretch the boundaries of your child's imagination and build up important critical thinking skills.

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

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

This Valentine's Day, pair up science and crafting with this simple crystal formation project that's sure to bring a little love into your home.

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!

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

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.

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!

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

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.