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

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

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

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.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

This science fair project idea investigates if fats add to the flavor of food.

This science fair project idea explores the egg's thin membrane.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

This classic children's game demonstrates how sound travels through air vs. through a solid.

In this experiment you will replicate the mummification process by making a hot dog mummy.

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 project explores whether plants can live and grow when "watered" with juice, soda, or milk.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

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

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

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

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

Do you think heat can affect a plant's growth rate?

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

In this science fair project you will make a model of a cell membrane using very simple material.

This science fair project idea compares biodiversity between drops of water.

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

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.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.