Check out this cool and free middle school science fair project idea on how to make a solar oven.

This science fair project idea studies the acidity of rain water and whether the acidity is the same on all rainy days or does it fluctuate.

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

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?

Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.

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

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.

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

This project examines the concentration of dissolved oxygen in water, with and without oil.

Will people still feel hungry once they eliminate grains from their meal? Find out in this science fair project idea!

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

This project examines whether more expensive golf balls translate into better results on the golf course.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

This science fair project examines the different composition of fungi and plants.

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.

This experiment explores the most common colors that appear among a sample of crossbred guppies.

Science fair project that determines whether spreading a moss soup over an area increases moss growth.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

This science fair project idea explores alcoholic fermentation at work by making your own soda.

Examine the presence of seeds in open fields. Collect seeds on socks by walking through open fields of grass or other growth. Germinate seeds on socks

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?