Classification of Rocks

__________ sedimentary rocks form when chemicals in water come out of the water and form solids.

• Chemical (or nonclastic)

• Clastic

• Metamorphic

• Igneous

Tags

NGSS.MS-PS1-2

The root words "______" mean change.

• meta and MORPH

• beta and POWER

• alpha and GEO

• rock and CYCLO

Granite is an example of a ___________ rock.

• intrusive
• extrusive

Obsidian is an example of _______________ rock.

• intrusive

• extrusive

Natural gas and petroleum are found in ___________ rock layers.

• sedimentary
• igneous
• metamorphic
• all

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS3-1

Limestone becomes _________ when temperature and pressure increase!

• marble
• granite
• sandstone
• feldspar

Tags

NGSS.MS-ESS2-1

_________ metamorphism occurs when magma or lava comes in contact with, or touches, surrounding rock.

• Contact

• Pressure

• Regional

Clastic rocks are classified by the size of the __________ that form them.

• sediments

• metamorphic rocks

• plates

• igneous rocks

The two main types of sedimentary rocks are ___________ and _________.

• chemical (nonclastic), clastic

• sedimentary, metamorphic

• igneous, metamorphic

• heat, pressure

Once magma is exposed at Earth's surface, it is called __________.

• lava
• magma
• deposition
• sediments

Tags

NGSS.MS-ESS2-2