In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

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.

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

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

This experiment explores the most common colors that appear among a sample of crossbred guppies.

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

Fibonacci sequences have been observed throughout nature, like in leaves and flowers. In this project, students find examples of the Fibonacci sequence.

Determine if picking up fallen food in 5 seconds or less prevents the transfer of bacteria from the ground.

The objective of this experiment is to evaluate whether funny advertisements are more or less effective than serious advertisements.

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

Are you able to endure long periods of exercise? Find out if snorers can exercise longer than non-snorers.

Kids learn about the color rendering index by finding the best lightning for makeup in this fun and original physics science fair project idea.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Plant sunflower seeds , measure height, calculate average height, compare size and weight of heads. Interpret findings in detailed report.

Devise an argument for or against the possibility of resurrectin extinct species through DNA manipulation. Analyze data, report findings.

Create groups of volunteers based on frequency of playing video games. Compare driving records. Analyze data, interpret findings.

Research long-term effects and draft a questionnaire about frequency of marijuana use and average annual income. Interpret findings in a detailed report

This project examines whether sugar substitutes are as sweet as real sugar.

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

This middle school project examines the strength of horizontal versus vertical pointing eggshells.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Explore the relationship between personality traits and birth order effects.

The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.

Does 100% Fruit Juice have more Vitamin C than juice with artificial ingredients? Find out in this science fair project idea!

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

This science project has students study the idea of human beauty.

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