Understanding Rocks and Minerals

What is the main characteristic of a rock?

• Its size and shape

• How it is formed

• The type of minerals it contains

• Its location in the Earth

What is the difference between magma and lava?

• Magma is hotter than lava.

• Magma is found below the Earth's crust, while lava is found on the surface.

• Lava contains more minerals than magma.

• Magma is a type of sedimentary rock.

How is a sedimentary rock formed?

• By the melting and cooling of molten rock

• By the compacting and cementing of sediments

• By heat and pressure changing a rock’s form

• By the crystallization of minerals in water

Tags

NGSS.MS-ESS2-1

What happens to a rock when it is subjected to a lot of heat or pressure?

• It melts and forms lava.

• It becomes a sedimentary rock.

• It changes form and becomes a metamorphic rock.

• It breaks into smaller pieces.

Tags

NGSS.MS-ESS2-1

How are minerals sorted?

• By their location and formation process

• By their color and texture

• Into metals and gems

• By their age and hardness

Tags

NGSS.MS-PS1-1

What is the softest mineral?

• Talc

• Silver

• Sandstone

• Clay

What is soil made up of?

• Rocks and minerals

• Sand, silt, clay, air, water, and decomposing matter

• Rock particles, minerals, and fossils

• Water, minerals, and magma

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

What are common examples of sedimentary rocks?

• Granite, basalt, and marble

• Sandstone, limestone, and conglomerate

• Quartz, gold, and silver

• Talc, diamond, and clay

What are the properties of minerals used to identify them?

• Size, weight, and color

• Color, texture, luster, streak, cleavage, and hardness

• Hardness, melting point, and density

• Streak, shape, and elasticity

Which of the following is the hardest mineral?

• Silver

• Quartz

• Talc

• Diamond