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

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

How do organic materials become soil? This science experiment measures what materials biodegrade.

This science fair project idea investigates how the shape of an object affects drag.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

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

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

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.

This classic children's game demonstrates how sound travels through air vs. through a solid.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

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

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

This science fair project examines how seeds hitchhike on animals and clothing.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

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

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

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

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

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

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

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

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.