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.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

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

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

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.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Check out this cool science fair project on identifying rocks and minerals for kids.

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

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

How powerful is the reaction between baking soda and vinegar? Find out here!

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

Science fair project that examines condensation and the conditions needed in order for dew to form.

Challenge your learner to design and build a city of their own in this creative engineering activity.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

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

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

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

This science fair project idea investigates how color affects temperature.

This science fair project will help students learn about non-vascular plants, such as mosses.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.