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

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

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?

Will the shape of an ice cube impact how fast the ice melts?

In this project, a model of a submarine is built to simulate the buoyancy and displacement of water and air.

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

Examine the effect of pressure on carbonation in soda.

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

This science project teaches students to classify different shapes of leaves.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

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.

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

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!

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

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.

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

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!