This is a small water turbine model made with straws. Although it is very "mini", it can really work.
Materials and tools needed:
Some plastic straws, some thin copper wires (or soft thin iron wires), ballpoint pen refills, steel balls, a thick iron wire, scissors. You also need a large beverage bottle and a set of disposable infusion set tubes (not in the picture below).
The upper right of the picture above is the completed water wheel.
Let's make the water wheel first:
1. Take 3 sections of plastic straws of equal length, with two diamond-shaped holes in the middle;
2. Set the hole with the hole on the one without hole;
3. Insert the green straw into the red hole;
4. Distribute the straws at equal intervals, use scissors to make the oblique opening at the end, and the water wheel will be formed;
5. Punch a small hole in the middle of the water wheel with a steel needle;
6. Pass the thin copper wire through the small hole, put both ends on the ballpoint pen core, and bend a small circle on each, so that the water wheel can rotate freely on the thin copper wire and will not move back and forth. Here, the water wheel is all finished.
Assemble the small water turbine model:
1. Find a piece of foam, support the water wheel on it, and fix the thick iron wire on the foam to support the water pipe;
2. Use the tube of the disposable infusion set to draw the water out of the high place, and fix the end of the water tube on the thick iron wire;
3. Adjust the direction and size of the water flow, the self-made small turbine model can work very well!
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