When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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

Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

The objective of this science project is to determine the length of time for different seeds to germinate.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

Check out this fun science fair project idea to measure bacterial colonies from door handles and explore the effectiveness of different cleaning agents.

Learn how acid-base catalysis affects enzymes and enzymatic reactions in this science project.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

Students will investigate the illumination durations and intensities of different luminous substances of different colors of the spectrum.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Read on this high school science fair project idea to get basic information on the process of heat transfer and the conditions under which the transfer occurs.

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

This science fair project idea explores the different properties & interactions of sugar molecules.

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.

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