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.

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

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

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

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.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

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.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.

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?

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

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

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

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

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.