Vocabulary
Earth's middle layer
Mantle
The center of the Earth
Core
Melting makes sedimentary rocks change to...
Igneous rocks
Magma cools and crystallizes in the cycle forming _______ rock
Igneous
Sandstone is a ___________ rock.
Sedimentary
Marks or remains of once living things
Fossils
Earth's outer layer
Crust
Wind and water change metamorphic rocks to...
Sedimentary rocks
Igneous rock transforms to sediment by processes called ___________ & ____________
weathering and erosion
Limestone is a ___________ rock.
Sedimentary
Rock that was once melted but has cooled and hardened
Igneous rock
Rocks that form when small particles of rocks or the remains of plants and animals are pressed and cemented together
Sedimentary rocks
This shows how life has changed over time
Fossil
The layers of sediment become pressed together over time
Compaction
Gneiss is a ___________ rock.
Metamorphic
Rock that has been changed by heat and pressure
Metamorphic rock
The look and feel of a rock's surface
Texture
Which mineral is the hardest?
a. nickel
b. copper
c. diamond
d. quartz
C. Diamond
If heat and pressure inside Earth cause the texture cause the texture and crystal structure of a rock to change, what new material is formed?
Metamorphic rock
Obsidian is a _______ rock.
Igneous
A process of changing rock types
Rock cycle
An igneous rock formed from lava the erupted onto Earth's surface
Extrusive
Which rock would most likely have a fossil in it
a. granite
b. limestone
c. marble
d. quartz
B. Limestone
The processes by which sediments become sedimentary rocks - three words
(Double points)
Deposition, compaction or cementation
Quartzite is a ___________ rock.
Metamorphic