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

In this project, you will observe and record changes in sunspots over two weeks.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Science fair project that determines what neurons are, what they do and compiles this vital information in an illustrated book.

Create your own light bulb and test filaments of different thicknesses to see which keeps the bulb burning for the longest time.

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

This experiment strives to determine if tracking of conservation habits will lead to reductions in a family's electricity and water bills.

This project determines how much the rebound rates of tennis balls change after ten games.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

Check out this fun leaf chromatography science fair project idea for middle school students and discover the hidden pigments in leaves.

This science fair project idea tests the efficiency of short term memory.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

This science fair project idea compares biodiversity between drops of water.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Study the physical and chemical changes that make hair curl or straighten. Study ingredients, function of chemicals like thioglycolic acid.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

This science fair project idea examines the reason boats are shaped and engineered.

Examine the connection between temperature and chemiluminescence.

Demonstrate how to tell the age of an egg without having to crack it open.

This science fair project idea explores if an LED light can be powered by vegetables and/or fruits.