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Video // Beg I Pre-int // Invention Of Eraser | First Rubber Eraser
J** 2023-06-01 오후 9:47:45 362



Invention Of Eraser | First Rubber Eraser



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Vocabulary:
1.Ferrule = a ring or cap, typically a metal one, which strengthens the end of a handle, stick, or tube and prevents it from splitting or wearing.
2.Resins = are plant products that, are not soluble in water, harden when exposed to air, do not play a role in the fundamental processes of the plant, and. are generally produced by woody plants.
3.Prompting = the action of saying something to persuade, encourage, or remind someone to do or say something.
4.Tiny winy = very small
5.Durable = able to withstand wear, pressure, or damage; hard-wearing. Long-lasting, heavy –duty, strong. Questions:
1.What do Ancient Greeks use to erase lead or charcoal marks from paper?
2.What are the other cultures using to remove errors on parchment or papyrus documents written in ink?
3.In 1700, what have the Japanese done with the soft bread?
4.What happened in 1736? Who are Joseph Priestly and Edward Nairne?
5.Who is the American inventor in1839 who accidentally discovered how to vulcanize rubber?
6.How do the erasers wipe the paper clean?
7.What do you call the little eraser on the pencil ends? And what do you call those small metal bonds containing the plugs?
8.How about you? Have you discovered something to erase your mistakes on papers? Share it.

첨부파일 Not exist uploaded file.
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