Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

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

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Word color association is just a fancy way to talk about the way we connect colors with words.

Start your toy engines -- this is going to be a fast and friction-filled race!

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

Test whether plants can grow without sunlight and water.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

This science fair project idea explores how length affects the weight a bridge can hold.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

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

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

This science fair project idea investigates how magnetism can defy the force of gravity.

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

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?