Exploring the World of Rocks and Minerals

What is a mineral?

• A living organism

• A man-made substance

• An inorganic, naturally occurring solid with a definite chemical composition and atomic structure

• A liquid found in nature

Tags

NGSS.MS-PS1-1

Which of the following is NOT a characteristic used to identify minerals?

• Weight

• Color

• Hardness

• Taste

What does the streak test determine?

• The luster of a mineral

• The hardness of a mineral

• The color of a mineral in its powdered form

• The density of a mineral

What is the hardness of glass on the Mohs scale?

• 3.5

• 5.5

• 7.5

• 9.5

What are the three main types of rocks?

• Sedimentary, Metamorphic, Organic

• Igneous, Metamorphic, Organic

• Igneous, Sedimentary, Organic

• Igneous, Sedimentary, Metamorphic

How do extrusive igneous rocks form?

• From exposure to intense heat and pressure

• From the compaction of sediments

• From the cooling and solidification of lava on Earth's surface

• From the cooling and solidification of magma inside the Earth

What is a characteristic of clastic sedimentary rocks?

• They are formed from the compaction and cementation of sediments

• They are formed from the cooling of lava

• They are formed from the evaporation of minerals in water

• They are formed from exposure to intense heat and pressure

Tags

NGSS.MS-ESS2-1

Which of the following is a bioclastic sedimentary rock?

• Basalt

• Limestone

• Obsidian

• Granite

What causes metamorphic rocks to form?

• Cooling of magma

• Compaction of sediments

• Exposure to intense heat and/or pressure

• Evaporation of minerals in water

What is the key characteristic to look for in metamorphic rocks?

• Hardness

• Color

• Streak

• Banding