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

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

Test your friends to find out if you can replicate the placebo effect's incredible results.

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.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

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

In this project children practice the scientific method while playing with puffy paint.

Using a toy race car kids create a visual model of the Doppler Effect.

Plants and light seem to be good buddies, but how far does the friendship really go?

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

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.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Start your toy engines -- this is going to be a fast and friction-filled race!

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

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

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

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

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

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