Metamorphic Rocks

Metamorphic Rocks

Chapter 2 Lesson 5

Vocabulary

• Foliated

Objective

• What are metamorphic rocks?

My Planet Diary: Misconception

• Read page 76

Multiple Choice

What changed the rocks? Make sure your answer explains the rock's current appearance.

• great heat made the rock less rigid without melting it, and then great pressure deformed it.

• great heat melted the rock and made it more rigid changing it to a sedimentary rock

• heat change the form of the rock and made it harder

• the heat changed the appearance and texture, but the mineral composition stayed the same.

Multiple Choice

How does heat change rock deep below Earth's surface?

• It could not change preexisting rock into metamorphic rock without melting it

• It could change preexisting rock into metamorphic rock with melting it

• it can change preexisting rock into metamorphic rock without melting it.

• Don't pick this one

Multiple Choice

How does pressure affect rock?

• it decompresses it

• it heats it up

• it cools it down

• it compresses it.

Multiple Choice

What characteristics of rock are changed?

• texture and mineral composition

• appearance and crystal structure

• appearance, texture, mineral composition, and crystal structure

• luster and hardness

Multiple Choice

How does magma provide heat to change rock?

• pockets of magma that rise through the crust heat rocks

• pockets of magma don't rise and other warm up the rocks

• pool of magma flow through the rocks

• Rivers of magma flow and change the rock

Multiple Choice

How can Earth's plates provide heat to change rock? (end of page 77)

• Plates bounce off of each other and push rock up toward the surface

• collisions between plates can push rock down toward the heat of the mantle

• collisions between plates push rock up and heat of the surface

• plates will collide and be damaged

Multiple Choice

How does this classification compare to that of sedimentary rocks?

• the different metamorphic rock are classified according to how they formed.

• its is different sedimentary rocks are not classified according to how they formed

• its is different sedimentary rocks are classified according to how they formed

• They are just rocks

Multiple Choice

What is a foliated rock?

• A rock whose grains have been flattened

• a rock whose grains have not been flattened

• a rock whose grains have changed colors

• a rock who becomes powder

Multiple Choice

What foliated metamorphic rock forms from granite?

• gneiss

• luster

• streak

• hardness

Multiple Choice

What foliated metamorphic rock forms from shale?

• granite

• concrete

• slate

• sand stone

Multiple Choice

What properties make marble useful for statues and buildings?

• It is the right weight

• it can be carved and cut easily, has attractive texture and color, and takes a polish

• It can be formed easily

• It is the most expensive

Multiple Choice

Why is slate useful as roofing material?

• it breaks into flat pieces and is impermeable to water

• It holds a tight seal

• slate is waterproof

• slate is the most protected material

Multiple Choice

What is a metamorphic rock?

• A rock that forms from another rock as a result of heat or pressure (or both)

• a rock that changes to do to its circumstances

• a really cool rock

• a rock from cybertron

Open Ended

Suppose great heat completely melt a certain deposit of rock, which then hardens into new rock. You might think that the new rock is metamorphic, but it isn't why not?