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.

Construct and experiment with a periscope using reflected light rays to gather an image.

In this project, a mnemonic is used to test how it increases memory.

In this project, waves of vibrations are experimented with using water in glasses.

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

The project investigates how friction affects motion by using different surface textures.

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

In this project, a magnet is used to collect iron from breakfast cereals.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

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

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

In this science fair project you will make a model of a cell membrane using very simple material.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

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

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

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.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

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

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

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

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

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

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

In this project students experiment with making music using only glasses of water.