plate tectonics earth system

123456
Across
  1. 2. boundary between 2 plates that are scraping past each other (slide, scrape)
  2. 5. Wegner German scientist who developed the theory of continental drift
  3. 6. consists of all of the crust as we;; as the upper, ridged part part of the mantle
Down
  1. 1. the broken up pieces of the lithosphere
  2. 3. ring of volcanoes around the pacific plate
  3. 4. boundary between 2 plates moving away from each other (seperate, divide)