The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

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

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Time to look at our faces! Are they symmetrical or asymmetrical? Find out in this science fair project idea.

Show your middle schooler how a quick whirl of spinach in the blender will reveal the cobwebby "stuff"--or DNA--of life!

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

Think about the adaptive utility of an important aspect of our physiology.

Science fair project that determines how your mirror image differs from your actual image and how virtual images are constructed.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

This science fair project idea produces sounds by creating vibrations using different objects.

In this experiment, you experiment with laser jet toner, a magnetic fluid, as it moves, bubbles, and forms unique shapes.

In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

The aim of this science fair project is to study the mathematical construct called magic squares and create a unique magic square puzzle.

Discover which method for odor removal words the best for stifling refrigerator odors.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

This project explores the effectiveness of various common household ingredients in cleaning tarnished and oxidized coins.

This science fair project idea determines effective strategies to help students stay awake and attentive.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

The objective of this science fair project it to determine whether adding ethanol alcohol to gasoline slows the run time of a motor.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

A math project teaches students to use a clinometer to gauge the height of very tall objects like trees & to think of better ways to measure how high they are.

Determine which factors promote the greatest memory interference. Administer test, time how long it takes subjects to complete different tasks.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

This science fair project idea explores how length affects the weight a bridge can hold.

Looking for a project on machines? Get a fun elementary school science fair project idea to design a compound machine using your knowledge of simple machines.

This fun science project explores the climate change over the course of the history of Earth and helps construct a diorama representing a geologic time period.