Question

what are the main features of the mechanical teacher and the schoolroom that margie and Tommy have in the story?
Answer in 3 to 4 paragraphs.

Answer 1

Margie and Tommy had mechanical teachers. They had large black screens on which all the lessons were shown and questions were asked. They had a slot in which students had to put their homework and test papers. They had to write their answers in a punch code and the mechanical teacher calculated the marks immediately.

Hope it helps uhh ❤️

Answer 2

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The interconversion of the states is a physical change because these changes occur without a change in composition and no change in the chemical nature of the substance.

For example conversion of water to Ice.

Another examples are like cutting ,blending, etc.