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

The purpose of this science fair project is to build a basic radio.

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

In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

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

Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

This science fair project idea investigates how images are influenced by changes in light.

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.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

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

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

This science fair project idea explores whether talking to a plant will help it grow.

Explore the role of starches as thickening agents in food, and learn about the chemical properties of starch in the process.

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Use applied math to model orbital eccentricity in this cool science fair project for 7th grade.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

This science fair project idea identifies and understands adaptations in birds.

Science fair project that determines whether brain size is correlated with intelligence.

This science fair project idea addresses tempo, and whether faster or slower music works better as a study aid.

More height, more steep, more speed! This science project investigates whether there is a correlation between the height of the roller coaster and the slope.

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

Start your toy engines -- this is going to be a fast and friction-filled race!

This science experiment explores why leaves change color in the fall and the role of photosynthesis in leaf coloration.

Determine whether people can actually taste the difference between âhealthyâ cookies and the traditional version.

Demonstrate and describe acid-base reactions of baking soda and baking powder by making pancakes.