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.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

This science fair project idea investigates how magnetism can defy the force of gravity.

This science fair project idea investigates how color affects temperature.

Discover how and which salt melts ice the quickest.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

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

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

This project examines what types of objects burn and which burn faster and cleaner.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Do different types of oil mix or stack? Find out in this science fair project idea!

Determine which kind of rock (igneous, sedimentary, metamorphic) has the greatest reservoir capacity, which is the ability to hold the most oil and natural gas.

This science fair project will help students learn about non-vascular plants, such as mosses.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

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 discovers whether there are some objects that do not fall at a constant rate.