One of the first components that we learnt about was the wheel and axle, a wheel and axle helps move things. We also had to learn about a lever a leaver can lift something just buy pushing something down. For an example of a wheel and axle, we made a paper and straw wind mill. At the end of the year we are going to make a Rube Goldberg machine with all of the components. We also had to answer questions about the wheel and axle and the lever on two google drawings. I learned by doing the two google drawings and by making the wind mill.
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