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What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

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.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

This project examines whether people's taste perception is influenced by what they see.

This project determines what category of person is most likely to be ticklish.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

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

In this science fair project, students use the streak test to tell minerals apart from each other.

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

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

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

Test whether plants can grow without sunlight and water.