In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

The project examines absorbent polymers absorbency in disposable diapers and their unique ecological problem to the environment.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

The project determines which laundry detergent is best for cleaning clothes.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

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 activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

This science fair project idea experiments with spinning color wheels and optical illusions.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

In this activity your child will create their very own marble maze!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

In this project, a model of a submarine is built to simulate the buoyancy and displacement of water and air.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

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

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

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

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

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

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.