6.10b

Igneous rock forms in regions where -

• rock is heated to melting point then cooled to a solid.

• metallic minerals are put under extreme pressure.

• a river deposits sand and mud over a long time.

• evidence of organisms is becoming fossilized.

Tags

NGSS.MS-ESS2-1

Sedimentary rocks will most likely form an environment where -

• two land masses are colliding.

• liquid rock is hardening into a solid.

• minerals are being created under pressure.

• particles of rocks are accumulating.

Which of the following describes a test a student could conduct to help identify a mineral?

• Rub the mineral on a white, unglazed tile and observe the color of the material left behind.

• Carefully measure the mass of the sample of the unknown mineral.

• Place the mineral in boiling water in order to identify its boiling point.

• Compare the size of a mineral to the size of a known identiy of another mineral.

Which of these terms might be used to describe a mineral's luster?

• Rectangular

• Heavy

• Glassy

• Magnetic

The table provides data on four different minerals.

A mineral is observed to be black in color, and when it is rubbed on an unglazed tile, it leaves a red powder behind. Which of the minerals in the table is a possible identification for this mineral?

• Chromite

• Hematite

• Graphite

• Bornite

Tags

NGSS.MS-PS1-2

Which of the following correctly describes a test that is used to determine a mineral's identity?

• Use a balance to find the mass of the mineral

• Try to scratch the mineral with an iron nail

• Observe the shape and size of the mineral

• Submerge the mineral in a beaker of water

Which of the following processes produce metamorphic rocks?

• Rapid burial

• Gradual cooling

• Regular deposition

• Extreme pressure

Scientists classify igneous, metamorphic, and sedimentary rocks based on their -

• shape.

• color.

• formation.

• usefulness.

Igneous rock is formed by the cooling and solidification of molten Earth materials. Igneous rock forms when magma or lava cools. If underground pockets of magma (a)   and solidify, (b)   igneous rock is formed, such as granite.

• cools quickly, extrusive

• cools slowly, extrusive

• cools quickly, intrusive

• cools slowly, intrusive

This rock appears to have formed in materials deposited in water. It is most likely a/an (a)   rock.

• proclastic

• sedimentary

• metamorphic

• igneous

Tags

NGSS.MS-ESS2-4