Year 7 Earth & Space Sciences Key Words

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Across
  1. 6. Layer of gases above Earth’s surface
  2. 8. The time a planet takes to rotate once completely on its own axis
  3. 9. An irregular rocky object in orbit around the Sun between the orbits of Mars and Jupiter
  4. 11. The sun and all the planets, satellites, asteroids, comets and other bodies revolving around it
  5. 12. A meteoroid that enters Earth’s atmosphere, usually creating a bright streak across the sky as it burns up; a shooting star
  6. 14. Something that satisfies a particular purpose or need
  7. 17. Used in agriculture to provide water to crops
  8. 21. Breaking down of rocks by the action of rain, wind, chemicals and living things into smaller particles
  9. 23. Not able to hold any more water vapour
  10. 24. The dropping of sediments from moving water, air or ice
  11. 25. Rainwater that falls on hard surfaces that then runs off
  12. 27. When Earth blocks sunlight from reaching the moon
  13. 28. The amount of water vapour in the air
  14. 29. Places where underground water comes to the surface
Down
  1. 1. A ball of ice, dust and rock that orbits the Sun in a highly elliptical orbit
  2. 2. Roughly spherical ball of rock or gas that orbits the Sun
  3. 3. Substances found in rocks
  4. 4. All plant and animal matter found on Earth
  5. 5. The sun and all the planets, satellites, asteroids, comets and other bodies revolving around it
  6. 7. The time a planet takes to revolve once around the Sun
  7. 10. Any water falling from the sky
  8. 13. One complete orbit around the Sun
  9. 15. Object in orbit around another larger object
  10. 16. The process of water soaking into the soil
  11. 18. The evaporation of water from plants
  12. 19. The recycling of water from ocean to atmosphere to land and back to the ocean
  13. 20. The total or partial obscuring of one celestial body by another
  14. 22. Path a planet takes around a star, or the path a moon or satellite takes around a planet
  15. 25. On Earth, summer, autumn, winter, spring; caused by the tilt of a planet’s axis
  16. 26. The line connecting the North Pole with the South Pole. Earth rotates around this axis