Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.

This project compares the strength of one, two, and three-ply toilet paper.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

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 activity, your child will be challenged to make a tower using paper cups.

Science fair project that determines which foods and drinks contain the highest amount of glucose.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

The apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

This science fair project determines if the allelopathic chemical produced by the black walnut tree biodegrades immediately or persists over several days.

This science fair experiment examines the relationship between gender, age, and smiling.

Science fair project that designs a video game that requires players to use relevant skills.

A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

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

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Demonstrate Newton's laws of motion by examining the relationship between mass, force, and acceleration during free-fall.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

This experiment will explore if and where fractals can be found in the natural world.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Check out this fun middle school science fair project idea on Newton's third law of motion and how you can change the speed of a rocket.

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.