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Across
  1. 4. The blanket of gases that surrounds our planet is called the ___
  2. 6. Only about ___ percent of the water on Earth is fresh.
  3. 7. Oceanographers study the life and properties of the ___.
  4. 8. The study of rocks glacial movements and material that make uop the Earth.
  5. 9. Environmental scientists study how organisms __ their environment
  6. 10. The study of objects beyond Earth’s atmosphere is called ?
  7. 12. Earth’s atmosphere contains about ___ percent nitrogen.
  8. 16. The study of Earth’s oceans is called
  9. 19. Meteorologists try to __ the weather.
  10. 21. Earth’s atmosphere protect humans from harmful __ from the Sun.
  11. 22. astronomers use __ to study the stars and galaxies.
  12. 24. The rigid outer shell of Earth is called the ___
Down
  1. 1. The number of areas the study of Earth science encompasses
  2. 2. Oceanographers often have to ___ into the ocean to gather data
  3. 3. The study of the forces and processes that cause the atmosphere to change and produce weather.
  4. 5. Earth’s atmosphere contains about ___ percent oxygen.
  5. 11. The area from the surface of Earth down to its center is called the ___.
  6. 13. The mantle ranges in ___from 100°C to 4000°C
  7. 14. The study of the interactions of organisms and their surroundings is called __ science.
  8. 15. About 97 percent of Earth’s water exists as ___
  9. 17. The application of scientific discoveries is called___
  10. 18. Below the mantle is Earth’s ___
  11. 20. Just below the crust is Earth’s ___.
  12. 23. Many technologies came from the ___ program.