Observe which kind of fresh long-stemmed flower will last the longest after being picked.

This science fair project idea discovers the average time it takes for a person to remember something completely.

Free science fair project idea that examines the impact of gravity on a dropped carton of eggs. Design a device to protect the eggs from cracking.

Determine the growth rates of different types of human hair. Ask volunteers to not cut their hair until the end of experiment. Measure hair length.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

Discover if soda geysers will erupt when using regular vs. diet cola and which candies will create eruptions.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

Find out whether pacing in long-distance running actually acquires for drastic changes in finishing times versus running super-fast at the start.

This research project teaches students about synesthesia, a neurological condition that causes sensory overlap.

Learn about what happens to a current-carrying wire in a magnetic field in this cool electromagnetism experiment!

Can the force of air be used to propel a vehicle? This science experiment provides step-by-step instructions to help you answer this question.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

Is garlic antibacterial? Antimicrobial? Kids find out by using common kitchen equipment and ingredients in this cool and easy microbiology science fair project.

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

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

Test the combustion of different types of woods.

High school kids learn about fruit fly ethology in this cool lab that determines fruit fly movement and behavior under different conditions. Check it out.

This project concerns activity happening millions of miles away, on the sun.

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

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Polymers remove oil from contaminated waters. The purpose of this science project is to test the effectiveness of a polymer in cleaning up an oil spill.

Learn about how we localize objects and beings in space through sound and about monaural auditory mechanisms and binaural auditory mechanisms.

Learn about the right-hand rule for magnetic force! Use a cathode ray tube in this physics experiment to see a magnetic field's effect on an electron beam.

This project analyzes people's emotional responses to images in painting vs similar images in photographs.

This science fair project idea examines whether boys and girls differ in reflexes.

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

Learn about the field of psychophysics and to learn about "Just Noticeable Differences."

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.