Determine whether a hot liquid cools off faster when liquid is added before or after a two minute wait.

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

This project explores how and how much one family can reduce the amount of garbage they accumulate over a three month period.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

The project examines absorbent polymers absorbency in disposable diapers and their unique ecological problem to the environment.

The objective of this science fair project is to determine whether drawing with the right side or the left side of your brain will produce a better picture.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This science fair project idea compares the mass and density of objects.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

Which type of sunglass lenses gives you the best protection from the sun's harmful UV rays? Find out in this cool science project!

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

This science fair project idea focuses on the use a conductivity device to determine the ionic concentrations of hard water.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.

Determine if gender affects the ability to identify different smells.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This science fair project idea discovers the principle of conservation of mass.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

What colors can dogs see? Do they only have black and white vision, or can they see other colors too? Find out in this cool science experiment!

Science fair project in which you will build your own algae photobioreactor which will meet the physiological requirements of algae for maximum growth.

The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

Evaluate the ability of a biodegradable dish detergent to increase the penetration of water in hydrophobic soils.

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

Find out whether pacing in long-distance running actually acquires for drastic changes in finishing times versus running super-fast at the start.

In this project, the fingerprints of family members are compared to determine if people from the same family have similar fingerprints.

This project compares test subjects' responses to whining and other "attachment" and attention-getting sounds to determine which sounds are most distracting.

This project explores ways to prevent static electrical shocks.

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

This science fair project investigates which of two learning modes most commonly used in school, visual and auditory, is better for information retention.