Rocks and The Rock Cycle

What causes igneous rocks to form

• pressure

• cooling magma and lava

• compaction

• cementation

Pumice has holes in it because...

• it cooled slowly underground.

• it cooled quickly above ground before the bubbles in the lava could burst.

• they were carved by the volcano.

• worms crawled in and out creating holes.

Sandstone is a type of...

• igneous rock

• sedimentary rock

• metamorphic rock

• magma

If you found basalt, you could infer that...

• there may have been magma nearby in the past.

• it was once shale, but changed over time.

• seashells built up in the area long ago.

• there may be fossils in it.

Tags

NGSS.MS-ESS2-1

Metamorphic rocks were once...

• igneous rocks that cooled too quickly.

• sedimentary rocks that were changed by time, heat, and pressure.

• seashells that are pressed together.

• layers of mud and sand that built up over time.

Tags

NGSS.MS-ESS2-1

What is the effect of squeezing and heating rock for millions of years?

• Nothing happens.

• it can turn into a new type of rock.

• it will push up through cracks in the Earth's surface.

• it will dissolve.

Sam found limestone in a creek bed. What can Sam infer about the creek bed?

• It was once a large volcano.

• He will probably find granite nearby

• the creek bed was once at the bottom of the sea.

• the limestone was once sandstone.

Shale is related to slate, as limestone is related to...

• quartzite

• marble

• pumice

• basalt

Tags

NGSS.MS-ESS2-1

Which of the following people are using rocks?

• Bob is heating up his barbeque pit with coal.

• Suzie is writing her name on the sidewalk with chalk.

• Ann and John are making a border around their garden with bricks.

• They are all using rocks.

Rocks formed by heat and pressure beneath the Earth's surface are...

• igneous

• metamorphic

• sedimentary

• magma