Examine how a battery can be made from everyday materials.

How fast is the wind blowing? This science experiment provides step-by-step instructions to help you answer this question.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Examine the effect of pressure on carbonation in soda.

Check out this fun science fair project idea to explore how building on different types of soil affects the relative stability of buildings in an earthquake.

Demonstrate the principle of jet propulsion in this science fair project by building a rocket from household materials.

Design a livable building that functions without electricity. Consider necessities, comforts and entertainment. Build a scale model of your design.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

Research Earthship buildings. Draft a unique architectural design that repurposes used, discarded radial tires. Build scale model of structure.

Research and understand basic computer science. Build a simple computer, following instructions found online. Design a new or improved feature.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

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

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

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.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Consult mechanics, automotive specialists for advice. Build a real engine or a scale model. Test and demonstrate its mechanical properties.

This project involves the development of a website using free software online to promote the value of science.

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.

Science fair project that examines search engine optimization, internet search trends using a statistical study of searched keywords.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

Design and build a scale model representing living tree architecture. Then build a full-size version using one or more lives trees, and test your creation.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

The objective of this science project is to investigate why NASA has been using aerogel for the Stardust Project for collecting gas and dust from comets.

Science fair project that designs a video game that requires players to use relevant skills.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

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.

Study how liquids separate into layers by creating a liquid gradient, different density liquids separate into layers in a graduated cylinder.

Learn about the greenhouse effect- and get great science fair experiment ideas. Read more.

Science fair project that demonstrates how stalagmites and stalactites are formed.