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

This science fair project idea determines whether land or water warms more quickly and investigates how solar radiation increases the temperature of surfaces.

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

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

This science fair project idea explores what it takes to create a biosphere, or a self-sustaining ecosystem.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

Research Earthship buildings. Draft a unique architectural design that repurposes used, discarded radial tires. Build scale model of structure.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Demonstrate which cooking method gets rid of the most fat.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

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?

Science fair project which determines which colors of light allow plants to produce the most chlorophyll. How are color and light related to each other?

Study how we perceive color by exploring optical illusions such as pointillism, digital images, and Ishihara tests.

This science project challenges students to take learned information about weather and climate control and apply it to come up with creative ideas of their own.

Scavenger Hunt! Check out this fun science fair project idea to explore the difference between opaque, translucent, and transparent objects around your house.

Discover how and which salt melts ice the quickest.

Design a hearing protection device to protect their ears from loud noises. Examine the properties of current protective hearing devices, materials.

This experiment investigates whether left-handed test subjects have better memories than right-handed participants.

Research and understand basic computer science. Build a simple computer, following instructions found online. Design a new or improved feature.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

Science fair project that explores the natural process of limestone formation.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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

This science fair project idea demonstrates the process of land erosion.