可知制作汽车的材料里没有提到蜡烛。故选D。【小题3】细节理解题。根据“The car should be as light as possible so that it can move easily.”可知小汽车尽可能制作的轻一些,是为了容易移动。故选C。反馈 收藏
五、判断正误。正确的填“A”,错误的填“B”。Balloon-Powered (力 ) Car Build your own balloon-Project powe
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In the balloon-powered car experiment, students can apply theengineering design processby brainstorming different designs, building a prototype, and testing how well it moves. By adjusting the wheels’ size, the car’s shape, or how the balloon is attached, students can redesign and improve thei...
A balloon-powered car is a great way to learn about kinetic energy, potential energy, conservation of energy andNewton’s Laws of Motion. When you blow up a balloon, it stores potential energy in the form of the stretched skin of the balloon and compressed air inside the balloon. ...
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Balloon-PoweredCarProjectAttributesEngineeringField:MechanicalEstimatedDuration:1hourGroupsize:1studentLocation(s):AnyClassroom,HallwayAuthor:MartyTsaiDescriptionStudentswillbuildvehiclespoweredbyballoonsandracethem.Theraceisintendedtomakethisactivitybothfunandinformative.Thestudentsareencouragedtocreateasecondvehicletoexplor...
Although students will be provided with materials and guidelines, they would not be given specific instructions on how to build a balloon-powered car. Through such constructivist model of inquiry, the thinking, questioning and scientific inquiry abilities of the ...