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How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

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

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

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

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

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

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

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

This science fair project idea examines whether boys and girls differ in reflexes.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

This project compares the strength of one, two, and three-ply toilet paper.

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

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

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

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!