This science fair project idea determines which brand of batteries have the longest life.

Observe trends in the properties of writing materials over past 5000 years and extrapolate to future time. Prepare a table that compares writing material.

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

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

Study history of aerodynamics of arrow design to create a perfect arrow. Test arrows by shooting at an archery target.

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

2011 VIRTUAL SCIENCE FAIR ENTRY: The objective of this science fair project is to develop a microcontroller and circuit that can conduct electricity.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

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

This science fair project will investigate a type of sustainable development project.

In almost every preschool classroom is a sensory table. Learn how to make one at home!

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

This science fair project idea examines various dead zones and investigates the cause and how it can be fixed.

Discover which battery composition (type) lasts the longest.

Research basic components of vacuum cleaners, consult vacuum cleaner manufacturers for advice. Design vacuum with attachments that change automatically.

Experiment with fermenting various fruits, grains or syrups. Describe and illustrate the fermentation process in a detailed report.

Research different measurement systems, design your own new or improved system that can measure something difficult to measure with traditional systems.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

This science fair project idea teaches what wildlife rehabilitators do and about the process of wildlife rehabilitation.

Research currently available fuel sources, and fuel manufacturing and processing techniques. Propose an alternative fuel source.

Make a list of items that need repurposing such as e-waste, batteries and mattresses. Invent your own original repurposed design.

Develop a new system for predicting geographic changes. Demonstrate the nature of geographic change. Make logical predictions.

Learn about the growing app design field by designing a new or improved app for smartphones.

This science fair project teaches students the differences between fruits and vegetables.

Test of the effect of exercise on rote memory. Prepare a single list of 40 randomly chosen words. Have volunteers recall as many words as possible.

Science fair project that explains and demonstrates the parallax principle.

Thoroughly research image search engines. Consider possible improvements for visual search engines. Help design better image-matching engines.