This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Learn whether writing things down really makes things easier to remember.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

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

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

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

This science fair project idea investigates how the shape of an object affects drag.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

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

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

Will increasing the amount of salt in water effect how slow or fast the water freezes?

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

This science fair project idea produces varying pitches of sound.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.