Rock Cycle Review

How are metamorphic rocks formed?

• Magma/lava cools, forms crystals, and then forms rock.
• Existing pieces of rock and other sediments become deposited, cement together over time, and eventually form rock.
• Addition of heat and pressure.

How are igneous rocks formed?

• Magma/lava cools, forms crystals, and then forms rock.
• Existing pieces of rock and other sediments become deposited, cement together over time, and eventually form rock.
• Addition of heat and pressure.

How are sedimentary rocks formed?

• Magma/lava cools, forms crystals, and then forms rock.
• Existing pieces of rock and other sediments become deposited, cement together over time, and eventually form rock.
• Addition of heat and pressure.

Where do sedimentary rocks NOT form?

• Lakes
• Inside a volcano
• Rivers
• Deserts

Can fossils be found in any kind of rock?

• No. Fossils can only be found in sedimentary rocks since the organisms that are preserved are considered deposited sediments and fossils will not be found if the rock undergoes metamorphism or complete melting.
• Yes. Fossils can be found in any of the three kinds of rock.
• No. Fossils can only be found in metamorphic rocks since the organisms undergo a change in order to form.

Tags

NGSS.MS-LS4-1

What characteristic does this rock sample show us? Choose the best answer.

• Gas bubbles
• Glassy surface
• Visible sand and pebbles
• Crystals
• Fossils

What characteristic does this rock sample show us? Choose the best answer.

• Glassy surface
• Crystals
• Fossils
• Ribbonlike layers
• Gas bubbles

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

What characteristic does this rock sample show us? Choose the best answer.

• Glassy surface
• Visible sand and pebbles
• Fossils
• Ribbonlike layers

What characteristic does this rock sample show us? Choose the best answer.

• Visible sand and pebbles
• Crystals
• Fossils
• Ribbonlike layers

If there is a rock sample that has visible sand and rock fragments, which rock type would this be?

• Igneous Rock
• Metamorphic Rock
• Sedimentary Rock