Chapter 1/Lesson 4 Sedimentary Rocks, Metamorphic & Rock Cycle

Question 1

What is a Chemical Rock?

Answer 1

A sedimentary rock formed when minerals in water a liquid crystalize

Question 2

What is a Clastic Rock?

Answer 2

A sedimentary rocks formed from compressed rock fragments. Fragments range in size from very small (clay particles) to very large (boulders).

Question 3

What is a Organic Rock?

Answer 3

A sedimentary rock formed from the remains of plants and animals.

Question 4

Example of a Organic Rock

Answer 4

Coal and Limestone

Question 5

Common uses of sedimentary rocks

Answer 5

Sandstone and Limestone are used in buildings. And chert was used for spear heads and tools.

Question 6

Industrial Uses of Limestone

Answer 6

Used to make cement an steel.

Question 7

How do metamorphic rocks form?

Answer 7

Form out of Igneous, Sedimentary or other Metamorphic Rocks.

Question 8

Where are metamorphic rocks found?

Answer 8

Often found new mountains, due to the heat trapped in pockets of magma. Magma rises through the crust.

Question 9

What is the relationship between depth and pressure?

Answer 9

The deep a rock is in the earth, the higher the pressure on the rock.

Question 10

What are foliated rocks?

Answer 10

Thin flat laying found in most metamorphic rocks. Layers are formed by the alignment of grains due to pressure and heat at depth.

Question 11

Example of a foliated rock?

Answer 11

A Gneiss, Slate, Shale.

Question 12

Example of a non-foliated rock?

Answer 12

Granite - The grains are not aligned, and randomly distributed.

Question 13

How are metamorphic rocks used?

Answer 13

Marble and Slate are used for buildings and sculptures. The tower of Pisa is made from marble.

Question 14

Processes of rock cycle

Answer 14

Weathering, Erosion, Mountain Building, Sedimentation and Plate Tectonics.

Question 15

What is the main ingredient in Quartz?

Answer 15

Silica.

Question 16

Example of Rock Cycle

Answer 16

Granite, Quartz, Sandstone to Quartzite.

Question 17

What is Plate Tectonics?

Answer 17

Movement of plates at the surface of the earth that drive the rock cycle.

Question 18

Where are convection currents found?

Answer 18

In the earth’s Lithosphere

Question 19

What is a common source of Igneous Rocks?

Answer 19

New rock formed a the edge of two spreading places where magna approaches the surface of the earth.

Question 20

How does late tectonics respond at plate intersections?

Answer 20

Continental rocks in subduction zones can lead to melting and volcanos at the boundary between places.

Question 21

How does plate tectonics lead to sedimentary rocks?

Answer 21

Continental plates can push up mountain ranges and the weathering and erosion can create new sedimentary rocks.

Question 22

How does plate tectonics lead to metamorphic rocks?

Answer 22

The subduction of continental plates, one under another, can lead heat and pressure creating new metamorphic rocks.

Question 23

What is the conservation of material in the rock cycle?

Answer 23

No material is lost or gains, only changed and altered by the processes of the rock cycle.

Question 24

Common Clastic Rocks

Answer 24

Shale, Sandstone and Conglomerate, Breccia

Question 25

What is a Breccia?

Answer 25

Clastic rock with rock fragments with sharp edges.

Question 26

What is a Conglomerate?

Answer 26

Clastic rock with rock fragments with rounded edges.

Question 27

What is special about the structure of Sandstones?

Answer 27

Many small wholes between grains allow the rock to absorb water.

Question 28

What is Shale? Common features

Answer 28

A sedimentary rock that often contains fossils, and often breaks into large flat pieces.