This science fair project idea explores which is better for diffusion and cell absorbing, more surface area, or more volume.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

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

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

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

This project examines how temperature affects the volume of gas in balloons.

The thermometer outside is dip, dip, dipping! What kind of clothes will keep you warmest this winter? This project determines which materials insulate best.

Cookie catastrophe! In this project you will determine if different types of cookie sheets can cause cookies to bake differently.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

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.