In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

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 that helps visualize how the human brain functions by constructing a model of a brain.

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

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

Get a cool middle school chemistry project idea on how to determine whether a physical or a chemical change has taken place.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

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.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

The purpose of this science fair project is to investigate whether we can simulate how craters are formed and predict their size and shape.

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

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Study the anatomy of the brain and the functions of the corpus callosum. Research split brain surgery and its impact on advances in neuroscience.

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

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.

Get a fun high school physics science fair project idea one of the states of matter called plasma and the applications of this unique coil.