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.

The objective of this science fair project is to experiment with balancing everyday objects and observing the the effects of gravity on materials.

Take advantage of the fact that ink and water don't mix and introduce your kid to suminagashi, a Japanese form of art.

This project explores ways to prevent static electrical shocks.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

This science fair project idea determines the probability of a coin landing heads or tails.

This project examines what types of objects burn and which burn faster and cleaner.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.