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Science Fair Project Idea
thumbnail Nobody likes to get "the shivers"—that unpleasant, quivery, shaky feeling. What do you do when you feel chilled? Put on extra clothing? Drink something warm, like hot chocolate with marshmallows? Lie down on warm cement? Turn up the heat? People are quick to change their behavior when they sense that their body temperature is dropping. In this zoology science fair project, you'll learn that animals, like horses, don't like being cold either, so, just like people, they change their… Read more
MamBio_p026
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Average ($50 - $100)
Safety You should never put your fingers, or anything else, inside a fan.
Science Fair Project Idea
thumbnail Did you know that the color of your house could save money? Do this experiment to see which colors regulate temperature best in different environments. Then convince your parents to paint the house and save some money on their energy bill. Maybe they will be so happy they will also increase your allowance! Read more
EnvEng_p012
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Average ($40 - $80)
Safety No issues
Science Fair Project Idea
thumbnail Enzymes speed up chemical reactions by factors of at least a million. Now that's acceleration! This project investigates how temperature affects how fast these enzymatic reactions occur. Read more
BioChem_p011
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Must have access to a stove, refrigerator, and a freezer.
Cost Average ($50 - $100)
Safety Use caution when handling the hydrogen peroxide, boiling water, stove, and blender. Adult supervision may be required for using the stove.
Science Fair Project Idea
Imagine that you are a detective investigating a murder. You have a body that was found in a swimming pool, and someone reported hearing an argument near the pool at 10:00 PM the night before. Your first question might be "Was this person killed around 10:00 PM last night, or at some other time?" One way to answer this question is to measure the internal temperature of the body. The longer ago the killing occurred, the colder the body. But can you assign a specific time of death to a specific… Read more
Phys_p079
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
thumbnail Jumping discs can be a fun toy to play with, and with their sudden POP!, they can even be a good way to startle people who have never heard them before. Jumping discs use a neat trick to jump. They are made of two different types of metal, and these metals expand when they heat up (or shrink when they cool down), but not by exactly the same amount. In this science project you will explore how temperature affects the reactions of your jumping discs— and how to get the timing right if you… Read more
Phys_p094
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Time Required Average (6-10 days)
Prerequisites None
Material Availability This project requires buying bimetallic jumping discs. See the Materials and Equipment list for details.
Cost Very Low (under $20)
Safety Adult supervision is required during use of a hair dryer as a heat source. Hair dryers can cause burns or fires if used improperly and should not be operated by small children alone.

Do not use the jumping discs on surfaces that are fragile or can be easily scratched.

Science Fair Project Idea
thumbnail Can you imagine designing and building a space telescope the size of a tennis court? Believe it or not, that is someone's job! Engineers are hard at work on the James Webb Space Telescope, or JWST. This telescope has the potential to enable astronomers to see light from when the Universe was first formed. No one knows what amazing discoveries this might lead to. However, to make the telescope work properly, engineers have to overcome a lot of challenges. In this science project, you can… Read more
Phys_p082
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Most of the materials are available in hardware or craft stores.
Cost Average ($50 - $100)
Safety Adult supervision is required. Use caution when using the box cutter, heat lamp, and laser pointer.
Science Fair Project Idea
A delicious and quick lunch is a cup of tomato soup and a grilled cheese sandwich. Biting into the toasty, butter-soaked bread and gooey cheese is very comforting. But what makes the cheese melt so nicely? Do all cheeses melt this way? In this cooking and food science fair project, you will experiment with making and determining the best recipe for processed cheese. Read more
FoodSci_p054
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Time Required Long (2-4 weeks)
Prerequisites You will need access to a refrigerator, a stovetop, and an oven.
Material Availability Specialty items are required. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety Minor injury is possible. Adult supervision is required. Since the sodium phosphate dibasic is not a food-grade substance, do not eat any of the resulting processed cheeses.
Science Fair Project Idea
thumbnail Have you ever been so cold sitting in your house in the winter that you feel icicles could grow off your nose and your feet could turn into blocks of ice? Or have you ever been so hot in your house in the summer that sweat just drips off you? Making yourself comfortable can mean turning on the heater or the air conditioner—but that costs money. Still, being cozy or cool doesn't have to cost a lot of money if you use a geothermal heat pump. In this project you will build a model… Read more
Energy_p040
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Time Required Average (6-10 days)
Prerequisites None
Material Availability To make a geothermal heat pump you will need a pond pump. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety Exercise caution when working with electrical equipment and water. Adult supervision is required.
Science Fair Project Idea
thumbnail Crystals come in all different shapes and sizes. However, the purest and cleanest crystals are usually also the ones that grow to be the largest in size. In this science fair project, you will compare the size and shape of crystals grown in three different temperature conditions: room temperature, in the refrigerator, and in an ice bath. With just water and borax, a household cleaning product, you can discover the best recrystallization method for growing large, pure crystals. Read more
Chem_p082
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision required when handling boiling water and borax. Borax is harmful if swallowed, inhaled, or contacts eyes. On rare occasion touching borax can result in rashes
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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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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