Mrs. B's Rocks and Minerals Unit Test

A rock sample has been changed by heat and pressure. Which type of rock is it? 

• sedimentary rock
• igneous rock
• metamorphic rock
• mineral

What is the movement of weathered materials called?

• weathering
• erosion
• evaporation
• ice wedging

Which of the following best describes the relationship between a rock and a mineral? 

• Rocks are pure substances; minerals are not. 
• Rocks are made from minerals. 
• Minerals are made from rocks. 
• Rocks and minerals are the same thing. 

3. _____ is the hardest known mineral.

• a. talc
• b. quartz
• c. diamond
• d. gold

A series of processes on Earth’s surface and in the crust and mantle that slowly changes rocks from one kind to another is called

• a. erosion
• b. rock cycle
• c. crystallization
• d. evaporation

What rock groups are represented by B, C and D? 

• a. sediments, igneous, metamorphic 
• b. heat, crystallization, sedimentary
• c. sedimentary, metamorphic, igneous
• metamorphic, igneous, magma

Which of the following substances is a mineral?

• Cement

• Coal

• Quartz

• Glass

You are a scientist working to identify several known minerals. Which of the following properties could you possibly use to identify minerals?

• color, texture, length, and mineral composition

• color, taste, texture, hardness

• luster, hardness, streak,

• length, color, weight, streak

Rocks found on Earth are generally classified as sedimentary, metamorphic, or igneous. On which basis are these classifications made?

• Where the rocks were formed

• How the rocks were formed

• When the rocks were formed

• Why the rocks were formed

What kind of rock is formed when volcanic lava cools?

• sedimentary

• metamorphic

• igneous

• magma