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 explores whether mint, known for its âcooling sensationâ really does lower temperatures.

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.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

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.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

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.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

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

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

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.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

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.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

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!