Unit 3 Reassessment

Which rock type forms directly from the cooling of magma or lava?

• Sandstone

• Igneous

• Sedimentary

• Metamorphic

This igneous rock formed from magma and has large multi-colored crystals. Which answer correctly identifies the formation process and rock pictured?

• Intrusive; granite

• Extrusive; obsidian

• Extrusive; basalt

• Extrusive; pumice

What characterizes 'extrusive' igneous rocks?

• Formed by erosion

• Fine grained or glassy texture

• Coarse grained texture

• Formed under high temperature and pressure

What term describes igneous rocks with many cavities formed by gas bubbles?

• Extrusive

• Intrusive

• Vesicular

• Glassy

In terms of sedimentary rock formation, what does 'clastic' refer to?

• Rocks made from fragments of other rocks or particles

• Rocks made from plant remains

• Rocks formed from lava

• Rocks created by pressure

Which formation process correctly describes coal?

• Chemical

• Clastic

• Organic

Tags

NGSS.MS-ESS2-1

A rock type contains fossils, meaning it was quickly trapped in a rock and compacted/cemented inside the rock. What type of rock is this?

• Sedimentary rock

• Lava rock

• Igneous rock

• Metamorphic rock

Tags

NGSS.MS-LS4-1

Which two processes form metamorphic rock?

• Heat and pressure

• Heat and compaction

• Compaction and pressure

• Cementation and compaction

What type of non-foliated metamorphic rock is commonly used for countertops?

• Quartzite

• Slate

• Marble

• Schist

What process in the rock cycle involves the breaking down of rocks into smaller pieces by either mechanical or chemical means?

• Compaction

• Cementation

• Weathering

• Melting

Tags

NGSS.MS-ESS2-2