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

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

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

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

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

Examine the effect of pressure on carbonation in soda.

This science fair project idea produces sounds by creating vibrations using different objects.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Do lefties just write different or are their brains different? This science project has students explore what it means to be left handed.

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

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

This experiment tests which gender is better at catching how a magician performs his tricks.

This science fair project idea examines which type of insulation holds in the most heat.

This science fair project idea explores the different properties of matter.

In this fun activity, your child will create their very own solar oven to bake s'mores!

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

Construct and experiment with a periscope using reflected light rays to gather an image.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

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.