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

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.

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

The goal of this science fair project is to determine which cheese grows mold the fastest: Vermont Cheddar, American, Brie, or Camembert?

This cool physics demo illustrates the simple harmonic motion of a pendulum while teaching kids the important concepts of potential and kinetic energy.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

In this project, you will observe and record changes in sunspots over two weeks.

Make a backbone model to explore human anatomy and life science.

The objective of this science fair project it to determine whether adding ethanol alcohol to gasoline slows the run time of a motor.

This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

Measure the effectiveness of detergent containing a UV-absorbing compound in blocking UV-A radiation. Use black light and UV detecting beads.

Science fair project in which you will graft branches from different fruit tree onto a root stalk.

Word color association is just a fancy way to talk about the way we connect colors with words.

Test the idea that people who wear glasses tend to be more educated. True or false?

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

This science fair project idea examines which type of insulation holds in the most heat.

This science fair project idea explores the different properties of matter.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

This project explores ways to prevent static electrical shocks.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

This science fair project idea designs safe bicycle routes using GPS.

Demonstrate and explain holographic technology. Determine if a holographic image of a magnifier still magnifies the object beneath it. Explain the effect.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Research fruits and their ripening stages, follow and document the different stages. Analyze what causes fruit to continue ripening after being picked.

Check out this cool science fair project idea to explore non-chemical means of preserving fruits by using thermotherapy.