Science Chapter 7 – 7.1 – 7.3

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Across
  1. 5. A _____ is a scientist who studies the earth.
  2. 8. The _____ is an imaginary line around the earth equally distant from the poles.
  3. 9. List one of the four places most of the earth’s fresh water comes from. (3 letter word)
  4. 10. The layer of earth beneath the crust is called the _____.
  5. 12. The study of the earth and its structure is _____.
  6. 14. A _____ is a natural formation of rock or soil on the earth’s surface.
  7. 15. Each half of the earth’s spere is called a _____.
  8. 18. Geological events which are believed to be caused by plate activity are _____ and _____ eruptions.
  9. 20. _____ _____ are large areas of the earth’s crust which float on molten rock.
  10. 22. Hot liquid rock below the earth’s crust is called _____.
Down
  1. 1. The two kinds of crust are _____ and _____.
  2. 2. A _____ is one of the seven largest land masses which rises out of the ocean.
  3. 3. The hottest place in or on planet Earth is its _____.
  4. 4. _____ _____ use current observations to help them understand and confirm what has happened in the past.
  5. 5. Below the earth’s surface is _____ which supplies wells and springs.
  6. 6. A break between to moving plates is a _____.
  7. 7. List one of the four places most of the earth’s fresh water comes from. (8 letter word)
  8. 11. Trembling or shaking in the earth’s crust is an _____.
  9. 13. There are _____ oceans on the earth.
  10. 16. List one of the four places most of the earth’s fresh water comes from. (5 letter word)
  11. 17. List one of the four places most of the earth’s fresh water comes from. (4 letter word)
  12. 19. Mountains, plateaus, valleys, and canyons are _____.
  13. 21. Water covers more that _____ percent of the Earth.