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

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

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.

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

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.

Preschoolers are fascinated by how colors can be mixed to form new ones. This activity combines color mixing with the concept of melting for extra science fun.

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

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

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

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.

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.

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

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

This science fair project idea quantifies exactly how accurate the cricket thermometer is.

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.

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

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

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

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

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

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

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

If your Father's Day festivities include meeting up with extended family, why not put all the dads to the test with a chili cook-off?

Transform your kitchen table into a winter wonderland with a cookie and cocoa party that looks freshly dusted with snow.

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