This classic children's game demonstrates how sound travels through air vs. through a solid.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

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

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

This science experiment tests if dog saliva can really help heal wounds.

Find out whether packaged seeds actually do expire in this new science fair project idea.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

In this experiment you will replicate the mummification process by making a hot dog mummy.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

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

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

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.