Academic journal article Teaching Science

Puzzles

Academic journal article Teaching Science

Puzzles

Article excerpt

1. Draw lines to join the matching symbols. Lines can go from one empty box to the next: up, down, left or right. They can change direction, but they can't go diagonally. No two lines can go in the same box and lines can never cross,

2. Twenty-five ancient scrolls were tagged with a number from 0-24, with no two scrolls having the same number. An archaeologist then packed the scrolls in a crate. Many of the scrolls fell out! Luckily, she had packed the scrolls so that the sum of the numbers on the five scrolls in each column, each row and each of the main diagonals was 60. Can you work out which scroll fell out of which hole?

3 The puzzle below represents a type of animal, a cake and a type of mop. What is it?

4. We cannot write 9 as a 'reverse power', because 32 23: neither can we write 100 as a reverse power, because 102 210. And we don't count 27 as a reverse power, because 33 reversed is still 33. …

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