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Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

This science fair project idea discovers the effect of (high) heat on animal cells.

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

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

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

Use an Elihu Thomson apparatus, also known as a ring launcher, to learn about electromagnetism concepts and the properties of various metals.

Will your liquid weigh less once you remove the fat from it? Find out in this science fair project idea.

In this science fair experiment, high school students determine if all proteins denature at the same temperature.

Determine whether the application of Febreeze will lower the bacterial count.

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

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

In this science fair experiment, high school students fit the growth pattern of bacteria to a mathematical model and predict future colony expansion.

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

see whether all liquids evaporate at the same rate. In other words, does water evaporate at the same rate as juice?

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

This science fair project explores how salt and sugar affect the melting rate of ice in water.

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

Salmonella and E.coli are common food contaminates. This experiment measures the time it takes for E.coli and Salmonella to reach hazardous levels in fish.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?