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Others Like “Make Your Own Stethoscope”

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Science Fair Project Idea
thumbnail So you've just heard the "Happy Birthday" song and now it's time to blow out the candles. If you are sitting far away from the candles, you know you'll have to blow harder to get them all out than if you were sitting closer. In this science fair project, you'll blow on different kinds of pinwheels with a blow-dryer and see how far away you can get before they stop spinning. This will give you clues about how sensitive the pinwheels are to wind, and why. So come spin your wheels and get… Read more
Energy_p001
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision is required when using the blow-dryer.
Science Fair Project Idea
thumbnail Have you ever wondered what a wildlife biologist does? Ronnie and Denise from DragonflyTV found out firsthand when they worked with a local wildlife biologist to take a survey of the fish populations in their local lake. They wanted to determine what the biodiversity (number of different species in a habitat) was like so that they could find out how healthy the lake habitat was. In this science fair project you can take on the role of a wildlife biologist by examining the biodiversity of… Read more
EnvSci_p045
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision needed to make bug vacuum.
Science Fair Project Idea
thumbnail Did you know that throwing, kicking, and punting a football all involve the science of projectile motion? A star NFL® quarterback, kicker, and punter each need to have a very good understanding of how a football moves through the air in order to help them win games. In this science project, you will set up a rubber band-powered catapult to represent a field goal kicker, and study how changing the distance from the goalposts affects how hard it is to accurately kick a field goal. Read more
Sports_p059
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Time Required Average (6-10 days)
Prerequisites None
Material Availability This science project requires a kit available from the Science Buddies [# Link Name="Sports_p060.3" Value="HtmlAnchor" HtmlText="store" #]. See the Materials and Equipment list for details. Estimated project time includes shipping.
Cost Average ($40 - $80)
Safety Never launch projectiles at people, animals, or anything fragile. Be careful not to get your fingers caught in moving parts of the catapult.
Science Fair Project Idea
thumbnail Earth is an amazing planet. It has everything that we need: food, shelter, and water. Sure, we need water to drink, but have you thought about using water to create energy? Moving water has a lot of energy and all we need to do is to harness it. Moving water made the Grand Canyon. That took a lot of energy! In this science fair project, you will demonstrate the power of water by converting the kinetic energy in moving water to mechanical energy, which will lift a small weight. Read more
Energy_p021
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- Less Details
Time Required Short (2-5 days)
Material Availability A drill is needed.
Cost Low ($20 - $50)
Safety An adult's help will be required to drill holes.
Science Fair Project Idea
thumbnail Every criminal leaves behind evidence at the crime scene. The trick to catching the criminal is collecting all of the evidence and making sense of it. This is what the forensic expert does. In this science project you will be correlating the size of blood stains to the distance they fell, but do not get too grossed out. You will be doing it with fake blood. If you like figuring out mysteries, this is the science project for you! Read more
Phys_p066
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available.
Cost Low ($20 - $50)
Safety This topic can be a little scary. If you are squeamish, you may want to choose another topic. Adult supervision is required when doing background research, especially online, on this topic.
Science Fair Project Idea
thumbnail The ingredients in Alka-Seltzer® tablets undergo a chemical reaction that produces carbon dioxide gas as soon as the tablets hit water. Do you think you can cause the tablets to produce gas faster by breaking them into smaller pieces before dropping them in water? Find out for yourself with this project. Read more
Chem_p030
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision required for use of power drill (one hole required when building the simple experimental apparatus)
Science Fair Project Idea
thumbnail If you had to choose between having your favorite dessert, going to a movie, or spending the night at a friend's house, which would you choose? This science project shows you how you can "ask" a sowbug (or pillbug) a similar question in order to learn about their preferences. Give it a try to find out what types of microenvironments these tiny crustaceans prefer. Read more
Zoo_p021
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability If you do not have sowbugs or pillbugs available locally, they will need to be specially ordered. See the Materials and Equipment section for details.
Cost Very Low (under $20)
Safety Adult supervision is recommended for using the utility knife.
Science Fair Project Idea
thumbnail This is a straightforward, fun project to measure the rate of the chemical reaction that occurs when Alka-Seltzer® tablets are plopped into water. You'll track the volume of carbon dioxide gas produced at regular intervals after the reaction begins. How does changing the temperature of the water affect the production of gas? Read more
Chem_p026
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Average ($40 - $80)
Safety Adult supervision needed while using the drill.
Science Fair Project Idea
thumbnail Have you ever gotten a shock touching a doorknob after walking across a carpet? Static charge is responsible for that shock. Wouldn't it be cool to save up and store all of that charge in a homemade jar? It would almost be like storing lightning. This science project will show you how to do that. Read more
Elec_p049
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Average ($50 - $100)
Safety Since this experiment deals with electricity, it is best to have an adult supervise. A mild to moderate electric shock is possible if care is not taken. Follow all directions as stated.
Science Fair Project Idea
thumbnail Practice makes you better at most things, and knowledge makes practice so much easier! Can you swirl a circular toy called a hula hoop around your waist or arm? Is it hard? What knowledge can you apply to find ways that make hula-hooping easier? Physics! Yes, physics will help you determine what makes one hula hoop a winner and another a flop. In this science project, you will create your own hula hoops, spin them, and draw conclusions. The road will then be open to your becoming a hula hoop… Read more
Phys_p088
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- Less Details
Time Required Short (2-5 days)
Prerequisites You should know how to (or be willing to learn to) hula hoop around your waist or arm. Note: Hula-hooping is fairly easy if you have the right hula hoop for your body. This science project provides guidelines to make such a hula hoop.
Material Availability Readily available.
Cost Very Low (under $20)
Safety Adult help is required to cut the polypipe tubing.
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