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Others Like “Measuring the Surface Tension of Water”

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Science Fair Project Idea
thumbnail Have you ever wondered why a water strider can walk on water? Or how detergent can clean your dishes? If you observe carefully, you can find dozens of similarly interesting phenomena that are all linked to the surface tension of water. In this science project, you will investigate the properties of water surface tension. Read more
Phys_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 No issues.
Science Fair Project Idea
thumbnail Before the Industrial Age, people relied on muscle power for moving and lifting heavy objects. Here's a project that shows you how you can use your head to make heavy lifting easier on your muscles–and your back! Read more
ApMech_p010
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision recommended
Science Fair Project Idea
thumbnail Today magnetic recording is used in audio and video cassette recorders, and computer disk drives. Did you know that you can also use an electromagnet to record and play back from a steel wire? In fact, this is how magnetic recording got started. This project shows you how to build a simple wire recorder. Read more
Elec_p015
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Specialty items
Cost Average ($50 - $100)
Safety Eye protection required during construction
Science Fair Project Idea
thumbnail Measuring the value of a resistor with an ohmmeter is pretty simple. You connect the meter to the resistor, and read off the measurement from the meter. But what if the resistance you want to measure is very low? This project shows you how to use a four-point resistance measurement method to measure low resistance values. Read more
Elec_p025
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- Less Details
Time Required Short (2-5 days)
Prerequisites To do this project, you should be familiar with Ohm's Law, and with the basics of using a digital multimeter.
Material Availability Readily available
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
Have you ever tried to pull out a nail out of wood with your bare hands? Or have you tried to shove a staple through a stack of papers without a stapler? A hammer's claw, a stapler, a pair of pliers and a shovel are each examples of everyday tools that use levers to make our work easier. Read more
Phys_p014
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites Playground with a see-saw
Material Availability Readily available
Cost Very Low (under $20)
Safety Be careful getting on and off the see-saw!
Science Fair Project Idea
thumbnail Can you lift a car? No? You say you are not strong enough? True, our bodies are not built to lift heavy loads like cars. Fortunately, our brains are smart enough to harness the power of fluids, like water and oil, to create hydraulic lifts. By pushing a button on a hydraulic lift, a mechanic can easily raise a car with one finger. Lifts can also be used to raise lots of other heavy loads - even such massive things as steel girders to construct a skyscraper! In this mechanical engineering… Read more
ApMech_p048
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Syringes, which are needed for this project, can be ordered online. See the Materials and Equipment list for details.
Cost Average ($50 - $100)
Safety Since minor injury is possible, use caution when using a tool such as a saw. Be sure to wear safety goggles when using tools. Use epoxy in a well-ventilated area and follow all of the safety recommendations on the package. Adult supervision is required.
Science Fair Project Idea
thumbnail Imagine that you could make an important piece of laboratory equipment in your kitchen. With this science project idea, you can! You will create your own centrifuge out of a salad spinner and some putty. In science labs, centrifuges are used to separate different liquids and/or solids from each other. You can load your homemade centrifuge with samples and see how they separate. What do you think happens to melted butter in a centrifuge? Read more
BioChem_p040
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability You will need to purchase the centrifuge tubes online. See the Materials and Equipment section for details.
Cost Average ($40 - $80)
Safety No issues
Science Fair Project Idea
Have you ever wondered what makes water 'bead' up on a freshly waxed car? In this project you'll investigate the chemistry of surface tension by measuring how many drops of water a penny can hold. What happens if you add salt or detergent to the water? Read more
Chem_p021
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- Less Details
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 "What?! Many of my toys are also machines?" That's right—simple machines! Simple machines are everywhere! Under your feet when you climb stairs, in your hand when you use a utensil to eat your dinner, even in your arm when you throw a ball. Come visit this science fair project and explore the six types of simple machines. Find out how many are hiding under the hinged lid (yes, another simple machine) of your toy box! Read more
ApMech_p042
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Fair Project Idea
Plants need nitrogen to build proteins and nucleic acids to grow healthy stems and leaves. Though the Earth's atmosphere is made up of 79% nitrogen, the form of nitrogen found in the atmosphere cannot be used by plants. In this experiment, you will compare plants grown without nitrogen fertilizer to plants grown with nitrogen fertilizer. Read more
PlantBio_p012
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision recommended during preparation of nitrogen fertilizer solution
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