Discover which battery composition (type) lasts the longest.

Is exercise a cellular activity? Check out this fun science fair project idea to compare the carbon dioxide production before and after exercise.

This science fair project idea teaches about the size of two different systems: the solar system and an atomic system.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

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

This science fair project idea recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

Choose a timeline to live without technology. Keep a journal of all the issues encountered. What are the benefits and cons of modern technology?

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

This science fair project idea increases the space efficiency of living areas and encourages economic improvements via new real estate ideas.

Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.

Looking for a fun earth science project on continental drifts? Check out this fun science fair project idea to explore how Pangaea may have broken up.

This science fair project idea designs a unique, eco-friendly living space and encourages advances in green architecture.

In this project, the affects of vitamin E are observed on a rose petal.

This fun science fair project idea explains what a circadian rhythm is and explores the types of biological activities that follow a 24 hour cycle in mammals.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

How does mold grow? Kids find out by testing different conditions to measure mold growth rate and learn about what factors cause mold to grow more quickly.

Check out this fun science project idea on ecological succession and learn the main difference between primary and secondary succession.

This science fair project idea attempts to prevent another tragedy in Gonaives and encourages technological advances against flooding.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

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

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

This science fair project idea tests the effect of heat- at varying temperatures- on the viability of biological enzymes.

This science fair project idea discovers new ways to use recycled materials and encourages new architectural design ideas.

This science fair project idea is develops a modern interior lighthouse design and encourages lighthouse preservation and restoration.

In this investigation, an oil spill is simulated in a jar to observe the damage that oil spills have on the ocean and ocean life.

This science fair project idea looks into the concept of powered parachutes as the future of transportation.

Which public places harbor the most bacteria and germs? Test different environments to find out where the most bacteria live in this science project.

This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.

This science fair project idea determines how quickly germs and bacteria spread.

Which battery lasts the longest? In this science fair project, kids will test popular brand name batteries like Duracell and Energizer against generic brands.