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

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

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

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

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.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

Do you think heat can affect a plant's growth rate?

This science fair project idea explores whether talking to a plant will help it grow.

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.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

Discover whether cold or hot water from the faucet will boil faster on the stove.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Test whether plants can grow without sunlight and water.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

The goal of this project is to create an exciting topographical map out of dough.