SC.4.E.6.2 Form A- OPM

Samantha is identifying different minerals she found on vacation. Which property of the minerals will Samantha be LEAST able to determine by using only her eyes?

• color

• hardness

• luster

• texture

Tanya is trying to identify an unknown mineral. To identify the mineral, Tanya breaks it and observes the planes and patterns formed along the break. Which property of minerals is Tanya testing?

• cleavage

• hardness

• luster

• texture

Jorge is trying to identify a mineral by observing its luster. This means that he is doing which of the following?

• observing the way the mineral reflects light

• scratching the mineral with other objects or minerals

• examining the color the mineral makes when rubbed across porcelain

• feeling the mineral to determine if it is rough, smooth, greasy, or glassy

Chico is examining two igneous rocks. He observes that one rock is light-colored and one is dark-colored. Both rocks have very large crystals and are very coarse. How can two rocks made by the same process be so different in color?

• They cooled at different rates.

• They contain different minerals.

• They were made at different times.

• They were worn down at different rates.

Tags

NGSS.MS-ESS3-1

Karen is visiting the Grand Canyon. The Grand Canyon was formed over millions of years as a river cut through the land. The river carried these fragments downstream where they were deposited. What kind of rock is formed when loose rocks and dirt are transported and re-deposited?

• crystallized

• igneous

• metamorphic

• sedimentary

Tags

NGSS.MS-ESS2-2