Lesson 1.2 - Our Planet Earth

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Across
  1. 4. – When days are longest in one hemisphere and shortest in another.
  2. 5. – Melted rock beneath Earth’s surface that can erupt as lava.
  3. 7. – The thick layer of hot, flowing rock beneath the crust.
  4. 8. – Plate ______________ is the theory that Earth’s crust is made of plates that move, causing earthquakes and volcanoes.
  5. 11. – The process that removes materials and carries them away, often shaping mountains.
  6. 12. - ___________ Zones are divisions of the Earth used to manage differences caused by Earth’s rotation.
  7. 13. – The dropping or settling of eroded material.
  8. 14. – The hot, metallic center of Earth.
Down
  1. 1. – The spinning of Earth on its axis, which causes day and night.
  2. 2. – Earth’s yearly orbit around the sun, which takes about 365 days.
  3. 3. – A crack in Earth’s crust where plates slide past one another and earthquakes often occur.
  4. 6. – The imaginary line Earth spins on, tilted in relation to its orbit.
  5. 9. – Days and nights of nearly equal length everywhere on Earth.
  6. 10. – The breaking down of rocks into tiny pieces by wind, water, or ice.
  7. 14. – The thin, rocky outer layer of Earth.