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This science fair project idea investigates the difference in reaction times between boys and girls.

Do different types of oil mix or stack? Find out in this science fair project idea!

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

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

Science fair project that examines condensation and the conditions needed in order for dew to form.

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

Discover flight initiation distance as you play around in the park with this fun bird watching project!

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

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.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

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

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

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

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

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

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.