Learn about this simple machine and make a pulley of your own to use for fun science trials.

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.

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.

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.

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.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

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.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Determine if gender affects the ability to identify different smells.