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Others Like “How Does a Hovercraft Work?”

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Science Fair Project Idea
Looking for an exciting new mode of transportation? In this science fair project, you will build a working hovercraft that will glide over surfaces on a cushion of air. And it's simpler to build than you might think! Read more
Aero_p036
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Time Required Average (6-10 days)
Prerequisites You will need to work with some power tools, such as an electric saw and an electric drill.
Material Availability Readily available
Cost Average ($50 - $100)
Safety Requires adult supervision. Use safety goggles when using power tools. Please review the Hovercraft Safety Guidelines below the Experimental Procedure.
Science Fair Project Idea
Hold onto your hats! In this science fair project, you will make a device that sends a film canister across the room with a small chemical explosion. The energy for the explosion is derived from the combustion of ethanol. You will determine the launch velocity of the canister, as well as devise ways to study changes in gas pressure and volume due to the explosion. This science fair project is sure to take your breath away! Read more
Chem_p074
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Time Required Average (6-10 days)
Prerequisites Knowledge of basic chemistry and physics would be helpful, but is not required. Experience with power tools will be helpful. This is a DIY (do-it-yourself) project that will require some creative problem-solving on your part.
Material Availability Readily available
Cost Average ($50 - $100)
Safety Minor injury is possible, so wear safety goggles. Avoid breathing the fumes caused by the explosion. Adult supervision is required.
Science Fair Project Idea
The world's oceans are home to the most strange and amazing creatures. What do scientists know about these deep-sea animals and how can they study them easily? One way to learn about these animals in their homes is to use underwater robots. Underwater robots can record data that would be difficult for humans to gather. But what are robots and how are they made? In this robotics engineering project, you will discover what makes up a simple robot and build and test your own underwater robot. Read more
Robotics_p002
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Time Required Average (6-10 days)
Prerequisites None
Material Availability To build an underwater robot you will need a motor and a model boat propeller. See the Materials and Equipment list for details.
Cost Low ($20 - $50)
Safety You will need glue and epoxy to waterproof the motor for the robot. Follow the instructions that come with the glue and epoxy and always work in a well-ventilated area. If you have a latex allergy, you will have to exercise great caution with the balloon and ask a volunteer to help you. Keep fingers away from the spinning propeller to prevent injury. Do not test the robot in saltwater.
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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- Less Details
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
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
Do you think you could build a car powered by nothing but air? A balloon-powered car is pushed forward by air escaping from a balloon, and it is fun and easy to build with materials you already have around your house. Can you imagine how you would want your own balloon-powered car to look? Can you design a car that will travel as far as possible? Get ready to grab some simple supplies to bring your idea to life! Read more
Phys_p099
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Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Cutting some materials, like plastic bottles, can create sharp edges. Young children should have supervision when using scissors or hobby knives.
Science Fair Project Idea
Watching professional racing-car drivers compete can be thrilling. The high speeds that racing cars can reach — up to 200 miles per hour (mph) and more! — put some unique demands on the vehicles. For example, to withstand high temperatures, the tires must be inflated with nitrogen gas, instead of air as with normal car tires. This enables the drivers to have better control over steering their cars as they race around the track. In this sports science project, you will inflate… Read more
Sports_p062
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Time Required Short (2-5 days)
Prerequisites None
Material Availability A helium tank is required to do this science project. See the Materials and Equipment list for details.
Cost Average ($40 - $80)
Safety Follow all safety precautions when using the helium tank and working with helium gas, as described on the tank's packaging.
Science Fair Project Idea
Have you ever wondered how fun toys like Silly Putty, Gak, and Slime are made? These products are so much fun because of the properties of polymers, which make them delightfully bouncy, stretchy, sticky, moldable, breakable, hard, soft, and just plain fun! In this science project you can be the developer of your own putty product by changing the ratio of ingredients to change the physical properties of your putty polymer. By describing the physical properties of your results, you can choose… Read more
Chem_p012
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision required. Borax is harmful if swallowed. On rare occasion handling borax can result in rashes.
Science Fair Project Idea
Have you ever seen butterflies fluttering around outside, gliding through the air and landing on flowers? While they are delicate and fragile, butterflies are actually excellent flyers. They are so good, in fact, that scientists at Harvard University studied butterfly wing shapes as an inspiration for building a miniature flying robot. In this science project, you will do your own version of the Harvard scientists' experiment to measure the flight performance of butterfly wings. Read more
Aero_p049
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- Less Details
Time Required Short (2-5 days)
Prerequisites None
Material Availability Readily available
Cost Average ($40 - $80)
Safety No issues
Science Fair Project Idea
What makes some objects more streamlined than others? Find out which ordinary objects around your house are made to move smoothly through the water in this easy science fair project. Which objects will produce the most drag when pulled through the water? Read more
Aero_p022
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- Less Details
Time Required Very Short (≤ 1 day)
Prerequisites You will need access to a swimming pool.
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision is required. Use caution when working near the swimming pool.
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