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Others Like “Beach Bum Science: Compression of Wet Sand”

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Science Fair Project Idea
thumbnail A ship is a busy place. When out to sea, naval, research, and fishing vessels pull or push heavy loads, like research equipment and crab pots, into and out of the water. But equipment and pots can weigh hundreds of pounds. So how does a ship's crew lift loads efficiently and accurately? With a hydraulic knuckle crane, of course. But what is hydraulics and why does hydraulics make certain tasks easier? Hydraulics is the study of liquids and their mechanical properties: how they move, resist… Read more
ApMech_p049
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Time Required Long (2-4 weeks)
Prerequisites None
Material Availability You will need to purchase syringes to build the model crane.
Cost Low ($20 - $50)
Safety Be sure to wear safety goggles when using tools like saws and drills. Minor injury is possible. Adult supervision is required.
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 Here's a project that involves a different kind of sandbox than the ones you usually think of. This one has a moving wall inside, acting like a piston, to compress the sand. You can make layers using two different colors of sand, and then see what happens when you compress the layers with the piston. If you're handy with woodworking tools, this is a good project to give you a feel for the effects of geological forces that deform the Earth's crust. Read more
Geo_p024
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- Less Details
Time Required Long (2-4 weeks)
Prerequisites To do this project you should have some experience building things from wood. You will also need access to a reasonably well-equipped wood shop for building the apparatus used in this experiment
Material Availability Readily available
Cost Average ($50 - $100)
Safety Adult supervision required for using power tools
Science Fair Project Idea
thumbnail Build model bridges and then deliberately destroy them? Who'd be crazy enough to try that? Read more
CE_p011
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Time Required Average (6-10 days)
Prerequisites None
Material Availability Most items can be obtained locally but may require visiting multiple stores.
Cost Average ($50 - $100)
Safety No issues
Science Fair Project Idea
For many kids, a day at the beach would not be complete without building a sandcastle. Have you ever wondered how it is that you can pack sand into a mold for a sandcastle? Do some kinds of sand pack better than others? This project will show you how to measure the porosity of sand: how much air space there is in between the sand grains. Maybe you can use your knowledge from this project to help you make bigger and better projects with sand. Read more
MatlSci_p024
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Science Fair Project Idea
thumbnail How can seawater from the oceans be turned into fresh water that is suitable for people to drink? Through a process called solar desalination! In this science project, you will make a solar desalination apparatus using readily available materials, and a power source that is free. How much water can the device produce, and is it still salty at all? What factors affect how effectively saltwater is turned into fresh water? Read more
EnvEng_p022
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- Less Details
Time Required Average (6-10 days)
Prerequisites None
Material Availability Some specialty items needed, see Materials list for details. For your convenience a Science Buddies Kit is available for purchase.
Cost Average ($50 - $100)
Safety A hand drill is needed for some steps. Adult assistance is needed for the steps involving a hand drill. All items in the Science Buddies Kit come pre-drilled, eliminating this safety issue.
Science Fair Project Idea
thumbnail Sorry, you don't get to use a jackhammer for this project, but you'll find out another way to break concrete (not to mention what makes it strongest). Read more
CE_p010
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Time Required Very Long (1+ months)
Prerequisites None
Material Availability Readily available
Cost Average ($50 - $100)
Safety Adult supervision recommended
Science Fair Project Idea
Expanding gases are everywhere, from the kitchen to the cosmos. You've tasted their pleasures every time you've eaten a slice of bread, bitten into a cookie, or sipped a glass of soda. In this chemistry science fair project, you'll capture a gas in a stretchy container you're probably pretty familiar with—a balloon. This will allow you to observe the gas expansion and contraction as the temperature changes. Read more
Chem_p077
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Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety People with a latex allergy should not do this project. Use caution, as latex balloons are the leading choking hazard for children under 6.
Science Fair Project Idea
thumbnail A siphon is a handy device for emptying out a liquid reservoir that has no drain. For example, they're great for cleaning fish tanks. An interesting aspect of a siphon in action is that the liquid flows "uphill" for a portion of its journey through the tube. This project asks the question, is there a maximum height for that uphill part of the siphon? Read more
Phys_p052
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- Less Details
Time Required Average (6-10 days)
Prerequisites Wood shop experience is helpful for this project.
Material Availability Readily available
Cost Average ($50 - $100)
Safety Adult supervision required
Science Fair Project Idea
Is an I-beam as strong as a solid beam of the same size? What if you include weight in the comparison: which beam has the greater strength-to-weight ratio? Would an I-beam be stronger than a solid rectangular beam of the same weight? What about other structural shapes (e.g., T-beams, U-beams)? In this project you can find out by setting up a test stand, putting on your safety goggles and measuring how much stress these building components can handle before they snap. Read more
MatlSci_p011
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Minor injury possible: Wear safety glasses when testing beam capacity. Keep hands and feet clear of the area underneath the weight bucket, which may fall at any time.
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