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?

Explore if planting seeds in a certain direction will affect how fast it germinates.

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

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

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!

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.

Examine the effect of pressure on carbonation in soda.

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

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.

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?

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

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

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

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

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

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

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

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

Make a spring collage with your child to get them outside and those creative juices flowing!

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

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

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

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

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

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