Igneous and Sedimentary

What factors can lead to the formation of a sedimentary rock?

• melting and solidification

• extreme heat and pressure

• compaction and cementation

Tags

NGSS.MS-ESS1-4

Describe how sand forms sandstone (lithification).

• melting and solidification

• compaction and cementation

• evaporation and precipitation

• extreme heat and pressure

Tags

NGSS.MS-ESS2-1

Which of the following is an organically formed sedimentary rock?

• obsidian

• coal

• siltstone

• shale

Rock made of layers of compressed sediments

• metamorphic rock
• igneous rock
• sedimentary rock
• school house rock

Tags

NGSS.MS-ESS1-4

Organic rocks are made from

• heat

• water evaporating and minerals crystallizing

• the remains of dead animals/plants

• pieces of other rocks

What is an example of an organic rock?

• coal
• breccia
• rock salt
• shale

This rock is made of large bits of gravel cemented together. What type of sedimentary rock is it?

• Clastic
• Chemical
• Organic

This rock is made of large bits of gravel cemented together. What is the name of this rock?

• Conglomerate

• Gravelrock

• Gravelstone

This rock is made of the remains of dead sea creatures (which have turned into oil). What type of sedimentary rock is it?

• Clastic
• Chemical
• Organic

The process in which dissolved minerals crystallize and glue sediment together.

• cementation
• deposition
• organic rock