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Find out which type of sponge holds the most water.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

This science fair project idea examines which type of insulation holds in the most heat.

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

This first grade science activity brings the green grass of early spring inside while teaching your child about the cycles of growth.

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

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

You don't need to wait for rain to see a rainbow. Make one yourself, and teach your child about light and weather in the process.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Making your own glass cleaner is easy, effective and inexpensive!

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

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

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

Could there be toxic chemicals lurking in the cupboards and closets of your home?

Come take off your shoes and explore with your feet. Your child will embark on a barefoot adventure as he plays with different textures.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

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

By using static electricity generated from their body, a child can cause a small fluorescent lamp bulb to light up!

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

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