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

Explore the chemistry of latex polymers with this outrageous, hilarious science activity.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

A simple science experiment exploring the physics of water pressure that's been amazing people since Medieval times.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

This project examines what types of objects burn and which burn faster and cleaner.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

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

This science fair project idea explores whether cats can be trained in the same way that dogs can.

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

This easy at-home experiment is a great way to "see" science.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

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

This science fair project idea explores alcoholic fermentation at work by making your own soda.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

How to test for acids and bases? In this activity you and your child can make your own indicator from red cabbage!

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Want to help make studying the nervous system a little more fun? This thinking cap is a great way to learn external human brain anatomy.