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Science fair project that examines the relationship between fluid flow rate, pressure, and resistance.

Learn how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

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

This experiment will investigate whether reward or punishment is more apt to motivate people.

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

Research long-term effects and draft a questionnaire about frequency of marijuana use and average annual income. Interpret findings in a detailed report

Plant sunflower seeds , measure height, calculate average height, compare size and weight of heads. Interpret findings in detailed report.

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.

Is garlic antibacterial? Antimicrobial? Kids find out by using common kitchen equipment and ingredients in this cool and easy microbiology science fair project.

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

This science fair project idea determines whether dogs can be trained faster using a food reward or praise.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

This science project examines the history of earthquakes and what we can do to prevent future disasters.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Science fair project that determines whether spreading a moss soup over an area increases moss growth.

This science fair project challenges students to research vortices occurring in nature and then create their own vortex.

In this math and science activity, help your middleschooler learn about proportion and measurement with just her shadow and a tape measure!

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

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

Help your child add some flair to the family garden with pencil pinwheels!

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

Your kindergartener will have a blast helping you craft these fun, eco-friendly potted place cards.

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.

Science fair project that determines whether wireless networks damage living plants. Are WiFi radiation hazardous to your health?

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.