The Earth

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Across
  1. 2. The Earth's atmosphere contains _____ for breathing and carbon dioxide for plants.
  2. 5. This covers approximately 71% of the Earth.
  3. 6. This type of crust is found beneath the ocean bed.
  4. 8. The state of matter that makes up the outer core.
  5. 9. The Earth is at the right distance from the Sun creating an ideal _______ for life.
  6. 10. The Earth is shaped like a _______.
Down
  1. 1. This type of crust is thick and is mainly made up of granite.
  2. 3. ______ keeps everything in place to help sustain life.
  3. 4. The second layer of the Earth.
  4. 7. The inner core is solid due to the immense ______ that surrounds it.