How can you make different kinds of wheels?.Note: Depending on the direction you wind the wheels, the rover can move either forward or backward. Turn the wheels to wind up the rubber band. What do we have to do to make the rover move?.Brainstorm and design (10 minutes) - Get kids thinking about the rover prototype.Improving a design based on testing is called the engineering design process. Today, for example, as you test your rover prototype, you’ll find ways to make it work better. Once you understand a design’s strengths and weaknesses, you can then find ways to improve it. They give you a basic design to build, test, and evaluate. Prototypes are used all the time in engineering. This is a prototype of a rover, just like the one you are going to build. Show kids your sample rover and tell them:.Today you’ll build and test a rubber band-powered rover. The astronauts will need moon cars-called rovers-to drive across the moon’s surface, carry supplies, help build their outpost, and explore the area. NASA plans to land astronauts on the moon by the year 2024. Tell kids some of the ways rovers will be used on the moon:.Read the challenge sheet and activity details to become familiar with the activity.Student challenge sheet - download PDF Management ![]() MaterialsĬorrugated cardboard body - 6-inch (15-cm) square (per rover)Ģ corrugated cardboard wheels - 5-inch (13-cm) square (per rover)Ģ round candies - the hard, white, mint ones with a hole in the middle (per rover) Students will follow the engineering design process to design and build a rover out of cardboard, figure out how to use rubber bands to spin the wheels, and improve their design based on testing results. OverviewIn this challenge, students build a rubber-band-powered rover that can scramble across the room.
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