9/25 Optional Homework

igneous rock formed from lava that erupted onto Earth's surface

• extrusive

• intrusive

• clastic

• biogenic

igneous rock that formed when magma hardened beneath the surface of Earth

• extrusive

• intrusive

• clastic

• biogenic

the process by which running water, wind, or ice carry away bits of broken-up rock

• weathering

• erosion

• compaction

• cementation

the process that presses sediments together

• deposition

• erosion

• compaction

• cementation

the process in which dissolved minerals crystallize and glue particles of sediment together

• deposition

• erosion

• compaction

• cementation

What process is used to form metamorphic rocks?

• Lava cools and hardens to form a rock.

• Bits of sand gravel form layers that turn into rock from pressure.

• I don't know :(

• Extreme heat and pressure from inside the Earth turns rocks into new rocks.

Metamorphic rocks undergo metamorphosis. What is another example of metamorphosis?

• A candle burning

• A caterpillar turning into a butterfly

• A volcano erupting

• A five-story building being constructed

Sedimentary rocks often form horizontal strata. What are strata?

• Crystals

• Layers

• Mineral grains

• Pieces of older rocks

Place the following events in sequence: A) Mineral grains are formed; B) A volcano erupts; C) Lava begins cooling

• A, B, C

• B, A, C

• B, C ,A

• C, A, B

Which of the following is a TRUE statement?

• Magma is called lava after it emerges from the ground

• Lava cools off to form magma

• Magma and lava form sedimentary rocks

• Magma and lava are two types of metamorphic rock