As a summary, my project vacuum cleaner gives the motor energy from the power supplied by the battery, so the motor turns the spiral and turns into a burst of suction, which becomes kinetic energy. Therefore, the vacuum cleaner can suck in a small dust.
I followed my plan, I find all the materials at first class. At the second class, I got battery and motor with propeller connected together. Third class, I put the motor with propeller inside the bottle. Last class, I finally finished all the things, here is the video.
This is the sketch of my small vacuum cleaner
My materials are rubber tube, small bottle, big bottle, small motor, propeller
First class: Find all the materials I need
Second class: Finish the shell of vacuum cleaner
Third class: Fix the battery on the outside, and put the motor with propeller inside
Last class: Get the rubber tube on the vacuum cleaner, then test the vacuum cleaner to see if everything works
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