Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Check out this fun high school science fair project idea to identify features of a mushroom and learn how do humans use fungi to their benefit?

Explore the wattage of microwaves in relevance to cooking time.

Kids get step-by-step instructions for how to make a rubber band car and explore the physics of potential energy with this fun engineering science fair project.

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

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

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

This science fair project idea discovers the effect of (high) heat on animal cells.

This science fair project idea determines if the temperature of rubber effects how high it bounces.

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

Are you ready to pilot your own airplane? Well, then take to the skies with this high-flying project!

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

The objective of this science experiment is to evaluate the affects of high and low heat capacity on a material's heat retention ability.

In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.

This middle school project examines the strength of horizontal versus vertical pointing eggshells.

This science fair project idea explores if objects dropped from a high distance will equal a greater impact force than the object dropped from a low distance.

Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

The goal of this middle school science fair project is to examine the effect of caffeine on plant growth.

This science fair project investigates which of two learning modes most commonly used in school, visual and auditory, is better for information retention.

Check out this cool and free middle school science fair project idea on how to make a solar oven.

Explore this fun middle school science fair idea to learn about photosynthesis and the key role of light in the growth of green plants.

This middle school science fair project evaluates test subjectsâ ability to determine what a person is feeling by reading their facial microexpressions.

Check out this fun leaf chromatography science fair project idea for middle school students and discover the hidden pigments in leaves.

Get a cool middle school chemistry project idea on how to determine whether a physical or a chemical change has taken place.

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

Get this cool middle school science fair project idea on how to conduct a flame test to detect the presence of certain metals in chemical compounds.

This fun middle school science fair project idea explores the process of respiration and determines whether boys and girls have the same lung capacity.