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What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

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

The weather is a key kindergarten science concept. With this activity your child will learn about wind direction and create a self portrait, too!

Help your child make an attractive frozen holiday ornament to hang outside during winter months.

In this Bernoulli's Principle experiment, you'll learn how an increase in the speed of a fluid, like air, decreases pressure.

Science fair project that uses distillation to convert salt water into fresh water.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

This experiment strives to determine if tracking of conservation habits will lead to reductions in a family's electricity and water bills.

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.

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

In this challenge, students are tasked with creating a car that can be powered by a balloon!

Science fair project that determines what percentage of air is made up of oxygen by examining the chemical reaction between oxygen and rust.

Help your preschooler practice observing and experimenting with this exciting activity where they'll get to examine objects below the water's surface!

It has long been believed that weather influences mood and behavior. This experiment will evaluate if weather can really impact the way people feel.

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

This experiment will explore the possibility of creating an infinite object by hand.

Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

Science fair project that determines the correlation between the ability of selected materials to conduct heat and a material's density.

Determine which metal has the highest rate of conductivity.

In this fun experiment, we'll find out how color affects heat absorption!

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Science fair project in which you will graft branches from different fruit tree onto a root stalk.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

First graders are learning basic addition and subtraction math facts. Practice in the sandbox with this fun outdoor math activity!

This science fair project idea determines what household items are good conductors of electricity.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.