Science fair project idea that measures fuel efficiency in cars. Calculate cost per mile by comparing fuel cost and consumption data.

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.

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

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

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

Describe the lives of commercially raised chickens. Contact local chicken farmers for information and advice. Write a detailed report about farming techniques.

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

This science fair project studies whether DSLR and Point-and-Shoot cameras work the same way under all conditions.

In this science fair experiment about recycling, demonstrate how the wax from a candle can be reused to make another candle.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

What does yeast eat? Sugar, of course. But yeast also has some powerful enemies in the form of antifungal agents! Kids test them out in this fun yeast lab.

In this activity, find out who the flowers' "partners in crime" are by being a flower spy!

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.

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

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

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

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

In this project students determine which instruments composers use to create birdsongs and birdcalls in classical music.

Evaluate whether birth order influences personality.

Examine the influence of the phase of the moon on moisture capillarity in garden soil. Measure and record the depth at which water is first detected.

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

This science fair project idea explores whether dogs do look like their owners.

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.

In this design challenge, your child will make a bottle rocket using typical household items.

Here's an arts and crafts guide for your high-school teenager that'll help her create a naturalist drawing and painting.

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.