Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.

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

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Create a self-portrait from natural materials in this collage craft activity!

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

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

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

This science fair project teaches students the differences between fruits and vegetables.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

This science project teaches students to classify different shapes of leaves.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

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

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

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

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

This season is a great time to explore the many shapes, sizes, and species of evergreen trees. Download our "field guide" activity and learn more!