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

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

This science fair project idea determines if the color of light affects the growth of plants.

This science fair project idea investigates how color affects temperature.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

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

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

In this experiment, students will discover how heat and pressure turn clay into slate, phyllite, and finally schist.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

In this fun experiment, we'll find out how color affects heat absorption!

In this science project, baking powder and vinegar are used to simulate the action of a fire extinguisher.

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

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.