Solve these clues to fill the grid.
- Mountain that erupts with lava
- 2 Across
- A long narrow natural elevation or striation
- 4 Across
- Tending to come together from different directions
- 7 Across
- The commonest type of solidified lava
- 8 Across
- Study of the natural world through experiments
- 10 Across
- The solid part of the earth consisting of the crust and outer mantle
- 12 Across
- Rock that in its molten form issues from volcanos
- 16 Across
- Plutonic igneous rock having visibly crystalline texture
- 1 Down
- One of the large landmasses of the earth (plural)
- 3 Down
- A crack in the earth's crust resulting from the displacement of one side with respect to the other
- 5 Down
- The remains of a plant or animal that existed in a past geological age and that has been excavated
- 6 Down
- King of Wessex
- 9 Down
- Base consisting of a rubber slab where the batter stands
- 11 Down
- Huge body of salt water
- 13 Down
- A hypothetical continent including all the landmass of the earth prior to the Triassic period when
- 14 Down
- The planet we live on
- 15 Down