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This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

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

In this project students learn about the golden ratio and investigate if it can be used to predict people's assessment of beauty in others.

Tin can phones offer something modern versions don't—a fun project to make with a friend, and a dramatic illustration of vibration and sound waves.

This project examines the phenomenon of using a mirror to trick a person's brain into experiencing sensations in body parts not actually affected.

Slime mold is no longer classified as fungi! So what is it? In this cool science fair project, learn how to grow slime mold and explore its behavior.

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

Discover which fabrics shrink the most in the wash and why.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

Examine whether males or females are more likely to have a higher center of gravity.

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 examines how seeds hitchhike on animals and clothing.

We're all familiar with the idea that some songs âget stuck in your head.â This experiment explores the validity of that claim.

The objective of this experiment is to evaluate whether funny advertisements are more or less effective than serious advertisements.

Learn all about balance and motion as your child designs a corn maze!

In this experiment you will use plastic and magnets to test your local soil composition.

Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.

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

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

This science fair project idea examines the actual cost of three household light bulbs by testing energy consumption.

This experiment will determine how different kinds of light affects the strength of bakerâs yeast.

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

This project is about after-images and what possibly affects them.

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

Determine which metal has the highest rate of conductivity.

Kids make an electromagnet in this electromagnetic induction experiment to learn about induction, current, and the right-hand rule.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

This project explores whether similar type movie scenes are accompanied by music with similar characteristics.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.