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In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Explore this fun middle school science fair idea to learn about photosynthesis and the key role of light in the growth of green plants.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

This science fair project examines whether ocean water can be made safe to drink.

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

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.

This science experiment tests if dog saliva can really help heal wounds.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

introduction to organic chemistry. study what happens when polymer molecules are mixed with borax solution.

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

Here's how you and your teen can stage your own formal debateâbeyond arguing why chores are unethical! Formal debates improve teens' critical thinking skills.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

This science fair project idea focuses on the use a conductivity device to determine the ionic concentrations of hard water.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

The purpose of this science project is to determine whether the amount of air in a soccer ball affects how far it goes when kicked.

Look for correlation between pH values of commercial soaps and detergents and manufacturer claims about eye irritation hazards.

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

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.