Class 8 Science Chapter 103: Revision Sets

What these sets are

There are 12 sets here, 60 questions in all. One set follows each chapter from the second onwards. Every set holds five questions. Two come from the chapter you have just finished. Three come from chapters you finished earlier in the year.

Why the old questions come back

A chapter read once in June has mostly gone by September. A chapter you were asked about again in July, and once more in October, has not. Coming back to a fact is what keeps it, and reading it again is not the same thing. So the three older questions are never all taken from the chapter just before. They are drawn from different distances in the book.

Science fades in a particular way

The parts that go first are the ones you only ever read. A definition, a unit, the order of a sequence, the name of a part on a diagram. The parts that stay are the ones you worked with. That is why these sets ask you for the small exact things rather than the big ideas.

How to sit one

Five minutes, book closed. Do not look anything up while you work. Looking it up feels like learning and it is what stops the remembering. Mark it straight afterwards, while you still know why you chose each answer.

What a wrong answer means

A wrong answer in October on a question from Chapter 2 is not a bad day. It is Chapter 2 telling you it has faded. That chapter is worth twenty minutes of rereading before the term paper. Finding that out is the only thing these sets are for.

Nothing here is new

You have met every one of these questions before, in the practice of the chapter it came from. Not one of them is new. If a question feels new to you, the set has just done its job.