Which of the following is a way to use a wheel and axle?
The first working product that uses a design is called a
Which simple machine is used to raise a flag on a flagpole?
What is the first step in the design process?
What technology protects people from diseases?
Dave and his family are loading a moving van with boxes. Which simple machine could best help Dave with this task?
How many simple machines are there?
What is the best way to describe scissors?
An inventor decides on a solution to a problem. What happens next?
Which of the following is an example of work?
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