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In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

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 do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

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.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

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

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

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

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

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

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

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.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

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

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

Find out which kind of bubble wrap fares best when put in impact.

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.

This science fair project idea determines what household items are good conductors of electricity.