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

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

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

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

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