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

Want a fun way to teach your kid to tell time? Making a plate clock is a great way for him to learn how to tell time in a way he'll actually find exciting.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

Think you need a special dehydrator to make your own fruit leather? You can actually make a delicious version of this popular kid's snack in your own oven.

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

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

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

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

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Explore properties of liquids and how temperature and salinity effect surface tension of liquids in this fun- filled science fair project idea.

Check out this cool science project idea to explore how temperature creates annual rhythms that govern plant growth.

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

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

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

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.

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

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

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

The objective of this science experiment is to evaluate the affects of high and low heat capacity on a material's heat retention ability.

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.

The objective of this experiment is to evaluate the effects of acid rain on plants.