Earth's Past

12345678910111213
Across
  1. 3. fossils of this plant was found in South America, Africa, India, Australia, and Antarctic, served as proof of a moving Earth.
  2. 5. super continent, evidence of Earth's past
  3. 6. explanation for a phenomenon
  4. 11. this hypothesis, a drift, suggest that the Earth is constantly in motion and spreading apart.
  5. 12. protects Earth's surface from the Sun's radiation
  6. 13. scratches made by glaciers at this location served as proof that the continents were moving. It's too warm.
Down
  1. 1. they analyze the planet's composition, structure, processes and history, such as rock formations
  2. 2. scratches made by glaciers
  3. 4. is the principle that in undisturbed rock layers, the oldest rocks are at the bottom
  4. 7. sinking of the ocean crust below the surface where it is recycled back into the Earth's mantle
  5. 8. He explained his observations by matching the maps where certain rocks were found on different continents.
  6. 9. a mountain range found in Eastern North America
  7. 10. along with rocks serve as a type of evidence that the Earth is always changing