Research camouflage products and techniques, test quality by timing volunteers. Calculate the average length of time to recognize the subject.

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

Research historic methods of food preservation. Analyze alternative recipes and techniques of food preservation. Document success with photographs.

This science fair project idea explores the fastest average speed a human can talk.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

Research long-term effects and draft a questionnaire about frequency of marijuana use and average annual income. Interpret findings in a detailed report

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

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

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

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

This science fair project idea determines if material and tensile strength of different types of skateboard wheels affects the velocity of the skateboarder.

The apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.

This science fair project idea models industrial oil spills and determines if they have an impact on wildlife living beneath the surface of the water.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

This science fair project idea tests the efficacy of both synthetic and natural antibiotics.

This science fair project idea determines exactly how much of an effect road grade has upon a cyclistâs speed.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Science fair project that studies how the brain transforms man-made symbols into meaningful concepts.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Construct batteries that make electricity from fruits with this fun science fair project.

Research hemispheric brain dominance in order to determine if you have a dominant side. Test foot, ear dominance. Record observations.

Research what is known about Alzheimer's disease and its treatment, and then prepare a script for television to educate the public.

Use a fish tank to simulate a pond! This science fair project explores the relationship between acid rain and the dissolved oxygen concentration of water.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.