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Others Like “Just Keep Cool—How Evaporation Affects Heating and Cooling”

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Science Fair Project Idea
thumbnail Did you know that your body has a built-in cooler? And it might not be what you think! Sweat is produced when you are hot, but its purpose is actually to cool your body as the water in it evaporates from your skin. In this science fair project, you'll use the energy produced when water evaporates to cool down chocolate-covered candy so it doesn't melt. Read more
Chem_p076
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
thumbnail Have you ever watched your parents dress up for a big evening? They may even splash on a bit of aftershave cologne or dab on some perfume since it is special occasion. But did you know that using perfume and scents is an ancient activity? Perfumes and the art of making perfume is an art that is thousands of years old. In this chemistry science fair project, you will learn more about one way to make perfume, called enfleurage, and experiment with it to extract your own floral scents. Read more
Chem_p083
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- Less Details
Time Required Very Long (1+ months)
Prerequisites You need to have access to a stovetop to perform the enfleurage technique.
Material Availability Readily available
Cost Average ($50 - $100)
Safety Minor injury is possible when using the stovetop. This science fair project requires using a small amount of alcohol to make perfume.
Science Fair Project Idea
thumbnail You know that water can exist in three separate phases: solid (ice), liquid (water), and vapor (steam). To change from one phase to another, you simply add (or remove) heat. When water boils, what happens to molecules (for example sugar or salt) that are dissolved in the water? Do they boil off too, or do they stay behind? Read more
Chem_p024
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Specialty items
Cost Very Low (under $20)
Safety Adult supervision required.
Science Fair Project Idea
thumbnail "Slurp...plop!" Recognize that sound? You might if your family usually serves jellied cranberries for the holidays. Jellied cranberries are thick, like gelatin, and retain the shape of the mold in which it was placed, which might mean Aunt Sue's turkey mold or even the shape of the can if you buy one of the popular canned versions. Taking a bite of wiggly jellied cranberries can be a fun addition to a delicious meal, but cranberries can also be served as a sauce. Both versions use the same… Read more
FoodSci_p061
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult assistance is required to make the cranberry sauce on the stovetop. The process involves boiling cranberries, sugar, and water. This mixture is prone to splattering as the cranberries pop open. Use caution to avoid being burnt by splattering cranberry sauce.
Science Fair Project Idea
thumbnail Soap comes in many varieties and forms—from bars to bottles to boxes. The uses for soaps are just as expansive—from cleaning our hands, hair, and faces to a variety of household cleaning jobs, such as dishes or laundry. One thing all these different soaps have in common is their chemical origin; they were all made by mixing fat or oil with a strongly basic solution, such as lye. In this chemistry science project, you will carry out the chemical steps needed to transform coconut oil… Read more
Chem_p096
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- Less Details
Time Required Average (6-10 days)
Prerequisites This procedure should be done in a chemistry lab with adult supervision.
Material Availability Some specialty items are needed; see the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety Minor injury is possible. This procedure requires use of sodium hydroxide solution. Sodium hydroxide can burn skin and eyes. See the Experimental Procedure for important cautionary notes. Adult supervision is required.
Science Fair Project Idea
thumbnail A plate of spaghetti, meatballs, and marinara sauce is a delicious and comforting meal. It's also an inexpensive meal, because it only costs about $12 to feed a family of four. And it's easy to make when you're on the go and need to eat a quick, but healthy dinner. Just boil a big pot of water, throw in your favorite pasta, cook for 11 minutes, drain, and top with meatballs and warm marinara sauce. Quick and cheap! But sometimes it feels like forever when you are waiting for water to boil,… Read more
FoodSci_p060
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- Less Details
Time Required Average (6-10 days)
Prerequisites You must have access to a stovetop.
Material Availability Readily available
Cost Low ($20 - $50)
Safety You need to be very careful when you work with a stovetop. You will also need to be cautious when draining the hot pasta.
Science Fair Project Idea
thumbnail What is the first thing you do when you wake up on a cold, frosty morning? Snuggle down deeper under the covers? Animals, like puppies and piglets, do not like being cold either, but they do not have hands or blankets to wrap themselves up. So when animals get chilled, they change their behavior and do things like huddle—they curl up close to other animals. In this mammalian biology science fair project, you will see just how much huddling can help reduce heat loss. Read more
MamBio_p027
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Use caution when handling glass jars or thermometers, as they can break or crack if dropped. Adult supervision is required when using the stove.
Science Fair Project Idea
thumbnail This physics project seems like it should have an easy answer. Instead, it turns out to be a great illustration of why it is important to base scientific conclusions on the outcome of controlled experiments. Things don't always turn out as we expect! Read more
Phys_p032
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Time Required Average (6-10 days)
Prerequisites Careful attention to the details of your experimental method are required for this project.
Material Availability Specialty items
Cost Average ($40 - $80)
Safety Adult supervision recommended for heating water and handling hot water.
Science Fair Project Idea
thumbnail Have you heard the term windchill used before? Maybe on the TV weather forecast? The windchill factor describes what happens to an object (like your body) when it is cold and windy outside. As wind increases, heat is carried away from the body at a faster rate, driving down both skin temperature (which can cause frostbite) and eventually the internal body temperature (which, in extreme cases, can lead to death). In this science fair project, you will use a device to measure wind speed (an… Read more
Weather_p029
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability The anemometer and infrared thermometer can be purchased online.
Cost High ($100 - $150)
Safety Adult supervision is recommended.
Science Fair Project Idea
thumbnail Have you ever wondered how yogurt is made and what makes some yogurts different from other yogurts? You may have noticed that most yogurt containers advertise that the yogurt contains "live cultures." This means that there are living bacteria in the yogurt! These amazing bacteria can turn plain old milk into a yummy yogurt treat. In this science project, you will investigate whether the bacteria affect what the yogurt feels, tastes, and smells like by making your own yogurt at home! Read more
MicroBio_p010
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Requires parental supervision when cooking on the stove.
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