1-the processes that change one rock into another rock.

2-the rock formed by the process of cooling magma or lava.

3-the processes that forms sedimentary rocks.

4-the process that forms igneous rock .

5-the reaction of oxygen with iron creating red rust color.

6-the landform where acidic groundwater creates a cave by erosion and then the roof collapses.

7-the changing of existing rock by the process of heat and pressure.

8-the rock produced by the process of compaction and cementation.

9-the molten material formed by melting and found under the earth's crust.

10-the movement of sediment by water, wind, gravity, or ice.

11-the landform where wind deposits sand onto a mound or hill.

12-the process that forms magma.

13-this type of igneous rock is formed by the cooling of lava outside the earth's crust.

14-the landform where a river deposits sediment at the mouth in a fan-shaped pattern.

15-the molten material that is above the earth's crust.

16-this type of igneous rock is formed by the slow cooling of magma inside the earth's crust.

17-the smaller particles of rock produced by the process of weathering.

18-the breaking down of any rock type into sediment.

19-the processes that forms existing rock into metamorphic rock.