Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

This science fair project idea explores the different properties & interactions of sugar molecules.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

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

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

In this science fair project, students make their own rain gauge to measure rainfall.

Plants and light seem to be good buddies, but how far does the friendship really go?

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Learn all about balance and motion as your child designs a corn maze!

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Take a dive into the candy jar with this yummy science experiment.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!