Science fair project that compares the relative carbon dioxide concentrations of various gases, including different types of vehicle emissions.

The objective of this science experiment is to evaluate the affects of high and low heat capacity on a material's heat retention ability.

This project examines the affect of temperature on viscosity and surface tension of different liquids.

Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

Check out this fun science project idea to measure the amount of vitamin C in ripe, half-ripe, unripe and stored oranges.

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

This science fair project idea investigates food preference of birds.

This project is about after-images and what possibly affects them.

Check out this fun middle school science fair project idea on Newton's third law of motion and how you can change the speed of a rocket.

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

This science fair project tested various nose cones to determine which would be the most ideal shape for propelling a water rocket.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

This science fair project determines which of two chemical agents can be used to release the drug (tea) from hydrogel crystals.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

The objective of this experiment is to evaluate the effects of acid rain on plants.