Chapter 3: Rocks and Minerals

Which of the following is the hardest mineral on the Moh's hardness scale?

• talc
• granite
• diamond
• obsidian

A(n) ________ is a naturally occurring, inorganic solid that has a crystal structure and a definite chemical composition.

• mineral
• organism
• element
• metal

Which of the following is a mineral formed from a hot solution?

• halite
• silver
• potassium feldspar
• biotite

Igneous rock can become metamorphic rock through

• erosion
• volcanic activity
• melting
• heat and pressure

________ is a light colored rock that has a high silica content.

• granite
• basalt
• pumice
• obsidian

________ rock is rock formed when rocks are broken down into smaller pieces or dissolved in water as rocks erode by wind and water and settle as the wind and water slow down.

• metamorphic
• sedimentary
• igneous
• palagic

What are the 3 groups of rocks?

• basalt, granite, and metal
• igneous, metamorphic, and metal
• metal, gemstones, and geodes
• igneous, sedimentary, and metamorphic

________ is the look and feel of the rock's surface which is made up of particles of minerals or other fine rocks called grains.

• texture
• sediment
• streak
• hardness

_______ rock is formed when existing rock is changed by heat, pressure, or chemical reactions.

• igneous
• sedimentary
• metal
• metamorphic

Which of the following is NOT a characteristic of minerals?

• must be formed by natural processes
• must be organic
• must be a solid
• must have a crystal pattern

Tags

NGSS.MS-PS1-1