Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

In this science fair project, students determine whether a bean plant grows faster and taller using a traditional soil planting method or hydroponic method.

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

Invite your kindergarten scientist to conduct this color mixing experiment to discover which primary hues make a rainbow of secondary colors.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

Find out whether putting something on top of a plant will inhibit its growth.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

Explore the effect of wind speed on the burning rate of a candle.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

In this cool elementary school science fair project idea make a model to learn what happens to the Earth's surface when ice moves over land.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot move in a pattern related to the sound and rhythm of music.

Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

High school students learn about resistance, resistivity, and if copper is the best metal conductor in this great physics science fair project idea.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

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

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

In this science fair project, we will test how different kinds and shades of hair respond to bleach.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Score a bull's eye with this cool science fair project on horizontal projectile motion. Guide a marble to its target and predict its trajectory using math!

Discover whether a metal will expand under hot water.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

This science fair project idea examines whether people can decode scrambled messages.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.