The Galileo inclined plane physics experiment was one of the first ways scientists calculated acceleration due to gravity. Do it yourself in this project!

By dropping a magnet through a copper tube, kids observe the cool (and bizarre) braking effect produced by the eddy currents predicted by Lenz's law.

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

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

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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

The apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.

The purpose of this science fair project is to investigate whether we can simulate how craters are formed and predict their size and shape.

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

Think about the adaptive utility of an important aspect of our physiology.

Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?

The purpose of this project is to determine if there are fluctuations in the rising and the setting of the sun and the position of the earth as it rotates.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

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

Explore this fun middle school science fair idea to learn about photosynthesis and the key role of light in the growth of green plants.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Science fair project in which you will graft branches from different fruit tree onto a root stalk.

Check out this fun leaf chromatography science fair project idea for middle school students and discover the hidden pigments in leaves.

Science fair project that examines how light wavelengths affect photosynthesis in the aquatic plant: Elodea.

Science fair project that models the subterranean movement of water, using Darcy's Law. How can this information be used in hazardous material spills?

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

This cool air pressure demonstration has kids break a ruler using only a newspaper and atmospheric pressure.

Study structure of the lens found in the human eye and determine whether it is concave or convex. Prepare a ray diagram, formulate hypothesis.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.