Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

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

This science fair project idea produces varying pitches of sound.

Will the shape of an ice cube impact how fast the ice melts?

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

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

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

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

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

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

This science fair project idea explores substances that cause a bubble to last longer.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Find out whether a longer airplane will fly farther or a wider paper airplane.

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

This project explores ways to prevent static electrical shocks.

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

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 measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

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

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.