In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

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 science fair project idea experiments with spinning color wheels and optical illusions.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

This science fair project idea explores whether white light can be separated into different colors.

This science fair project idea explores which fruit molds the fastest.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

This science fair project idea investigates the hardness property of minerals.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project idea explores alcoholic fermentation at work by making your own soda.

In this science fair project, students make their own rain gauge to measure rainfall.

This project determines what category of person is most likely to be ticklish.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

This science fair project investigates why the number of visible stars changes from place to place.

This experiment tests which gender is better at catching how a magician performs his tricks.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Make a backbone model to explore human anatomy and life science.