Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

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

This project explores what happens to a rubber band when it is heated and cooled.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

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

Thermometers are how we measure temperature, and we've all heard the terms "centigrade" and "Fahrenheit" tossed around, but what do they really mean?

Determine the differences between various bicep exercises, both in terms of how much muscle exertion they create and how they affect your heart rate.

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.

In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.

This science fair project idea investigates food preference of birds.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

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

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

In this science fair project, students examine how temperature affects sugar transport within a plant.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

Compare air temperature with the infrared temperature from a reflecting surface at different times of the day, in shade and in sunlight.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

In this science fair project, students will use methylene blue to study the presence of aerobic bacteria in milk.

The objective of this science project is to examine the factors that affect the dispersion of oil in water, including water agitation.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

Ethanol can be used as an alternative fuel! The purpose of this experiment is to identify a starch plant that produces the largest quantity of ethanol.

Do you think heat can affect a plant's growth rate?

This science fair project idea measures physical dexterity as a function of temperature.

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.

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

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

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

This project examines the concentration of dissolved oxygen in water, with and without oil.