2.  When molten rock (lava) cools and becomes
solid
 Intrusive: cools slowly
 Extrusive: cools quickly

3.  Contains bubble-like holes
 Hard
 Bubbly texture
 Formed above or below earth’s surface

4.  Granite
 Basalt
 Pumice

5.  When heat and pressure cause older rocks to
change into new types
 Formed deep in the earth

6.  Fine texture
 Has bands or streaks of minerals
 Usually made of quartz and calcite

7.  Marble – comes from limestone
 Slate – comes from shale
 Quartzite – comes from sandstone

8.  When rocks, plants, and loose material get
pressed into layers over time
 Involves weathering and erosion

9.  Has layered features
 Very soft (easily scratched)
 Contains fossils
 Made of particles cemented (pressed)
together

10.  Limestone – made from seashells
 Shale – made from mud
 Sandstone – made from sand