Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.

This science fair project idea determines the most effective method of preserving food.

Place mushroom caps on poster board, label samples. Check beneath mushroom caps for "prints" of spores. Record and interpret prints left behind.

Science fair project that examines the benefits of the plant enzyme: pectin methyl esterase (PME). Where is PME found in the plant? What does it do chemically?

Help your child learn about animal classification with this fun and delicious activity.

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

For a fun family activity to introduce your child to genetics, have your child go on a search for dominant and recessive family genes!

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

Plants and light seem to be good buddies, but how far does the friendship really go?

Science fair project that examines the relationship between fluid flow rate, pressure, and resistance.

This science fair project idea determines the probability of a coin landing heads or tails.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

This project explores how well couples convey complex emotions such as envy and pride to one another solely through the sense of touch.

Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

Science fair project that determines how your mirror image differs from your actual image and how virtual images are constructed.

Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.

Plant sunflower seeds , measure height, calculate average height, compare size and weight of heads. Interpret findings in detailed report.

Research active ingredients in anti-aging creams. Test skin creams on volunteers, document the effectiveness of the creams with before an after photographs.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Create groups of volunteers based on frequency of playing video games. Compare driving records. Analyze data, interpret findings.

Take the art making outside: have your first grader make a clay relief sculpture of the natural world. This is a great activity for summer.

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

Make meringues with your first grader and see how states of matter can transform before your very eyes. Here's how:

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Research responsibilities of physicists, and common thinking patterns. Devise a questionnaire that measures career aptitude in physics.

This biodiversity project examines the biodiversity in your own backyard.

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

Create a double-slit interference out of cardboard. Produce an interference pattern that demonstrates the wave and particle characteristics of light.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.