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

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

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

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

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

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

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 quantifies exactly how accurate the cricket thermometer is.

Celebrate Dia de los Muertos by baking pan de muerto. In this 5th-6th grade activity, your child will explore another culture while learning about baking.

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

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.

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 will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

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.

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

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

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

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

Help your first grade scientist learn about metamorphosis by observing the life cycle of some interesting creepy crawlies.

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

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

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

This project examines the affect of temperature on viscosity and surface tension of different liquids.

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