Across
- 4. a line of raised water that moves across the surface of the sea
- 5. soft white pieces of frozen water that fall from the sky in cold weather and cover the ground
- 7. the round object that you can see shining in the sky at night and that moves around the Earth every 28 days
- 10. a large piece of stone
- 11. a light strong material that is produced by a chemical process and which can be made into different shapes when it is soft
- 13. a substance consisting of very small pieces of rocks and minerals that forms beaches and deserts
- 14. a film or a television or radio programme that gives detailed information about a particular subject
- 15. a place where water from a river or stream falls down over a cliff or rock
- 17. a system or method for carrying passengers or goods from one place to another
- 18. cloudy air near the ground which is difficult to see through
- 19. food, paper, etc. that is no longer needed and has been thrown away
- 20. anything that is living, such as an animal, fish or insect but not a plant
- 22. moving air, especially when it moves strongly or quickly in a current
- 23. the substance that plants grow in
- 24. the surface of the Earth
- 25. the space above the Earth where clouds and the Sun and stars appear
- 26. a very large round object in space that moves around the Sun or another star
Down
- 1. a period of very bad weather when there is a lot of rain or snow, strong winds and often lightning
- 2. a track that has been made deliberately or made by many people walking over the same ground
- 3. the process of treating used objects or materials so that they can be used again
- 5. something you can see
- 6. a white or grey mass in the sky that forms from very small drops of water
- 8. the process of making air, water, soil, etc. dangerously dirty and not suitable for people to use or the state of being dangerously dirty
- 9. the temperature and other conditions such as sun, rain and wind
- 12. natural light that comes from the sun
- 16. a large ball of burning gas in space that can be seen at night as a point of light in the sky
- 17. the loud noise that you hear during a storm, usually after a flash of lightning
- 18. an area of land in the country, especially one where crops are grown or animals feed on grass
- 20. a large area of rock or a mountain with a very steep side, often at the edge of the sea or a river
- 21. power that is used to provide heat, operate machines, etc.
- 25. the light and heat that come from the sun when there is no cloud