Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

This science fair project idea examines the reason boats are shaped and engineered.

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.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

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

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Learn how different types of soil affect how animal tracks form in this experiment!

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

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

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

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

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.