This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

In this experiment, recycled objects are separated to demonstrate how mixtures are made and the variance in the physical properties of their ingredients.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

In this fun science fair project, draw a 3D picture and compare the holographic effects of red and blue 3D glasses and HD glasses!

Use a microscope in this experiment to learn about different kinds of "good bacteria" that turn milk into yogurt!

Check out this fun high school science fair project idea to identify features of a mushroom and learn how do humans use fungi to their benefit?

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Study how we perceive color by exploring optical illusions such as pointillism, digital images, and Ishihara tests.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

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

Science fair project that identifies the nature of ionic and covalent bonds and determines how ionic and covalent compounds differ.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

Check out this cool science fair project on identifying rocks and minerals for kids.

Compare the ignition rates of various types of flame-retardant materials.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

Would you be able to tell the difference between colored contacts and natural eyes from a normal distance? Find out in this science fair project!

In this science fair project, students investigate the applicability of Benford's Law to many sets of everyday data.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

In this science project, baking powder and vinegar are used to simulate the action of a fire extinguisher.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Determine which material produces the strongest static charge.

Many substances are compounds of different elements. This experiment combines iodine and zinc to make zinc iodide.

This science fair project idea's objective is to understand the concept of air pollution and examine the quality of air in our environments.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.