Minerals and Rocks in the Geosphere

Why isn't plastic a mineral?

• It hasn't got a definite chemical composition

• It is a processed substance

• Both are correct

• Both are incorrect

Tags

NGSS.MS-PS1-1

If we extract two samples of a _________, both will have the same chemical composition and proportion

• Mineral

• Rock

Tags

NGSS.MS-PS1-1

Which is an igneous rock?

• marl

• granite

• slate

• limestone

This is a...

• Mineral

• Sedimentary Rock

• Igneous Rock

• Metamorphic Rock

Tags

NGSS.MS-ESS1-4

the rocks are unique combinations of...

Rocks are classified into sedimentary, igneous and metamorphic according to its...

• Location

• Density

• Hardness

• Origin

• All the options are incorrect

Stephan’s mother is a mineralogist, and sometimes she brings home samples to study. Stephan observesand compares these minerals. He knows minerals form in several ways. He is especially interested in the minerals that form from volcanic activity and the kinds of crystals they form. What determines crystal size in minerals formed by lava or magma?

• The kind of mineral that formed

• The amount of material available

• The rate at which the minerals cooled

• The materials in the lava or magma

Stephan’s mother is a mineralogist, and sometimes she brings home samples to study. Stephan observes and compares these minerals. He knows minerals form in several ways. One day, Stephan’s mother brings home a sample of graphite. Stephan knows that graphite and diamonds both form from pure carbon, but he observes that they are very different in appearance and characteristics. What causes the differences in the way diamonds form compared to graphite?

• High temperature and high pressure

• Low temperature and location deep in the mantle

• High pressure and location in the continental crust

• Low temperature and low pressure

Marcie is hiking in the mountains and she discovers an interesting shiny rock. As she picks it up she wonders whether it could be a mineral or whether it is just a rock. She notes that it is solid and naturally occurring with a definite chemical composition, but that it has no definite crystal structure. Suppose the object Marcie found is a rock formed by volcanic processes. What type of rock would it be?

• Igneous

• Metamorphic

• Mineral

• Sedimentary

Tags

NGSS.MS-ESS2-1

Van finds a metamorphic rock as he is exploring a small ravine near his house. Metamorphic rock is a type of rock that has gone through a change that has turned it into a different type of rock. Which processes can cause rocks to change to metamorphic rock? Choose the two that apply.

• Breaking

• Crushing

• Deposition

• Heat

• Pressure

Tags

NGSS.MS-ESS2-1