WATER AND ROCKS.
THE GEOSPHERE.
Gap-fill exercise
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
USE THESE WORDS:
minerals
rocks
Earth
materials
solid
crust
three
layer
mantle
two