Unit 4 test review

Classify the following materials as rock or mineral.

• rock

• mineral

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NGSS.MS-ESS2-1

Classify the following materials as rock or mineral.

• rock

• mineral

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NGSS.MS-PS1-1

Which statement best explains why this extrusive volcanic rock does not have visible crystals?

• It is homogeneous and composed of a soft mineral.

• It does not contain atoms of any Earth minerals.

• It cooled down before large crystals could form

• It wasn’t exposed to friction during its formation.

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NGSS.MS-PS1-4

A region of metamorphic rock lies far beneath Earth’s surface. In time, which two ways can the rock make its way upward to Earth’s surface, where people are able to see it?

• It can be transported by water and deposited on Earth’s surface.

• It can uplift slowly due to the pressure of Earth’s plates.

• It can become intrusive igneous rock through compaction and cementation.

• It can be transported by wind and deposited on Earth’s surface.

• It can melt into magma and recrystallize as extrusive igneous rock.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-1

Sandra is an avid hiker. She’s found a rock while hiking near the Camden Gorge that looks like a bunch of shells that were glued together with sand. A few pieces of broken pebbles poke out near its edges.

• It is a metamorphic rock that experienced tremendous heat and pressure due to massive, moving tectonic plates.

• It is a sedimentary rock made primarily from lithification of organic material.

• It is an igneous rock that was formed above Earth’s surface.

Sandra is an avid hiker. She’s found a rock while hiking near the Camden Gorge that looks like it was molded like clay and stretched from both the sides. Its surface is covered with a pattern of wavy, elongated stripes.

• It is a metamorphic rock that experienced tremendous heat and pressure due to massive, moving tectonic plates.

• It is a sedimentary rock made primarily from lithification of organic material.

• It is an igneous rock that was formed above Earth’s surface.

Sandra is an avid hiker. She’s found a rock while hiking near the Camden Gorge that has a smooth, glassy

texture. It has no visible crystals. It is a piece of solidified magma.

• It is a metamorphic rock that experienced tremendous heat and pressure due to massive, moving tectonic plates.

• It is a sedimentary rock made primarily from lithification of organic material.

• It is an igneous rock that was formed above Earth’s surface.

The events describe the formation of an extrusive igneous rock. Which event happens first?

• Hot magma erupts as lava above Earth’s surface during a volcanic eruption.

• Being exposed to a cooler temperature, the lava starts cooling down quickly.

• The lava solidifies into a rock formation with a fine-grained or smooth surface.

• Rocks in Earth’s mantle and crust melt due to extreme temperatures and turn into magma.

The events describe the formation of an extrusive igneous rock. Which event happens last?

• Hot magma erupts as lava above Earth’s surface during a volcanic eruption.

• Being exposed to a cooler temperature, the lava starts cooling down quickly.

• The lava solidifies into a rock formation with a fine-grained or smooth surface.

• Rocks in Earth’s mantle and crust melt due to extreme temperatures and turn into magma.

Tags

NGSS.MS-ESS2-1

NGSS.MS-PS1-4

According to the theory of plate tectonics, what drives the motion of the continents?

• Earth's strong magnetic field

• moving magma in the mantle

• strong winds along the equator

• volcanic islands in the ocean

• changing ocean currents

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NGSS.MS-ESS2-3