Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

Think about the adaptive utility of an important aspect of our physiology.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

The goal of this project is to create an exciting topographical map out of dough.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Kids will enjoy this cool demonstration of Newton's Third Law and the conservation of linear momentum.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

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.

How is NASA able to launch something into orbit around the Earth? Learn about the relationship between gravity, speed, and orbit in space in this cool project!

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

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.

Science fair project that studies how the brain transforms man-made symbols into meaningful concepts.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Check out this cool science fair project idea to explore various aspects of projectile motions like mass, angle and distance.

The objective of this science project is to investigate patterns in fingerprints among family members.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

Science fair project that helps visualize how the human brain functions by constructing a model of a brain.

Kids will make a homemade electroscope and explain how it detects static charges through induction in this fun science fair project idea.

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

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

This science fair project idea studies the differences in gender perception between people.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.