This science fair project idea determines which flower lasts the longest.

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

This science fair project idea investigates food preference of birds.

These handmade Christmas treat cups are perfect for house parties, school celebrations, and holiday bake sales.

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

Check out this fun science fair project idea to learn how alkaline batteries convert chemical energy to electrical energy?

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

How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

This science fair project idea determines whether land or water warms more quickly and investigates how solar radiation increases the temperature of surfaces.

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

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

Use playing cards to learn about temperature as well as positive and negative integers in this fourth grade math game.

This project explores whether music affects the growth and health of plants.

Science fair project that tests how heat affects the chemical reaction between a seltzer tablet and a glass of water.

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

This science project challenges students to take learned information about weather and climate control and apply it to come up with creative ideas of their own.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Examine the connection between temperature and chemiluminescence.

This science fair project explores different types of endangered frogs, and why some are endangered while others are not.

This science fair project idea explores whether factors such as temperature and concentration affect the pH of a solution.

This project compares different liquids and the freezing, melting and boiling points of liquids.

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