Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

see whether all liquids evaporate at the same rate. In other words, does water evaporate at the same rate as juice?

This science fair project idea studies the acidity of rain water and whether the acidity is the same on all rainy days or does it fluctuate.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Check out this cool science fair project idea to explore various aspects of projectile motions like mass, angle and distance.

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

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

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

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

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

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

This project will explore whether music influences physical endurance.

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.

Make homemade lemonade in a baggie with your preschooler with this fun and easy recipe.

This experiment evaluates if people of a specific gender or age more likely have an elevated number of taste buds, allowing them to taste what others cannot.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Science fair project that evaluates how well clothing fabrics block UV radiation by examining the properties of different fabrics.

Check out this fun science fair project idea to explore how building on different types of soil affects the relative stability of buildings in an earthquake.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

Compare ability of selected materials to block UV-A radiation. Shine black light though glass at detecting beads underneath. Note color intensity.

Science fair project in which you will stage an election campaign to determine whether people are more swayed by a positive ad or negative ad.

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.