Across
- 4. the highest point of a mountain
- 5. a very quick look
- 6. when living things grow well
- 7. from a time before history was recorded
Down
- 1. it controls itself
- 2. it can go to work underwater
- 3. it is needed or very important
- 6. a long narrow groove or ditch
- 8. you can control it from a distance