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

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Make sourdough bread...and learn some colonial history and modern science in the process!

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

This surprisingly good glue recipe comes from common kitchen items.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

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

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

In this science fair project, students create their own miniature salt flats at home.

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Start your toy engines -- this is going to be a fast and friction-filled race!

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

Is your child a young ornithologist in the making?

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

This science fair project idea investigates which objects float and sink in honey, water, and oil.

This science fair project idea investigates if webbed feet help a duck (and others) swim.