Last science Quiz

Question 1

What are the three classes of rock?

Answer 1

Igneous, sedimentary, and metamorphic

Question 2

How do scientists understand how to classify rocks?

Answer 2

They observe their composition and texture.

Question 3

The minerals and organic matter a rock contains determines what?

Answer 3

Composition

Question 4

The size, shape, and positions of the grains that make up a rock determines the rocks….

Answer 4

Texture

Question 5

What are rocks that have large grains that are easy to see with your eyes?

Answer 5

Coarse-grained rocks.

Question 6

What are rocks called with small grains that can only be seen with a lens or microscope?

Answer 6

Fine-grained rock

Question 7

What rock can be fine-grained or coarse-grained depending on the time magma takes to cool?

Answer 7

Igneous rock

Question 8

The texture of this rock depends on the rocks original composition and the temperature and pressure at which the rock formed. What is it?

Answer 8

Metamorphic rock

Question 9

This rock forms when hot, liquid magma cools into solid rock.

Answer 9

Igneous

Question 10

When magma pushes into, or intrudes, surrounding rock below earth’s surface and cools, the rock that forms is called what?

Answer 10

Intrusive igneous rock

Question 11

Magma that is well insulated cools quickly or slowly?

Answer 11

Slowly

Question 12

What kind of texture does intrusive igneous rock have?

Answer 12

Coarse-grained

Question 13

What are some examples of intrusive rock?

Answer 13

Granite and diorite

Question 14

Igneous rock that forms when lava erupts, or extrudes, onto earth’s surface is called what?

Answer 14

Extrusive igneous rock

Question 15

Lava cools very quickly at earth’s surface. So, there is very little time for crystal formation. Because there is little time what kind of crystals form and what kind of texture does this rock have?

Answer 15

Small and fine-grained

Question 16

What extrusive rock cools so rapidly that no crystals form?

Answer 16

Obsidian

Question 17

Obsidian looks glassy, so it is often called what?

Answer 17

Volcanic glass

Question 18

What are other common extrusive rocks?

Answer 18

Basalt and Andesite

Question 19

Sometimes lava erupts and flows from long cracks in Earth’s crust called what?

Answer 19

Fissures

Question 20

The solid parts of earth are almost entirely made up of what?

Answer 20

Rock

Question 21

What did early humans use rock as?

Answer 21

Hammers to make other tools.

Question 22

For centuries people have used different types of rock including granite, marble, and sandstone for what?

Answer 22

To make buildings

Question 23

The ancient Egyptians used rock called _____ to construct the Great Sphinx and the pyramids at Gaza.

Answer 23

Limestone

Question 24

What processes change rock?

Answer 24

Weathering,erosion,deposition,temperature, and pressure

Question 25

The process by which water, wind, ice, and change in temperature break down rock is called?

Answer 25

Weathering

Question 26

Weathering breaks down rock into fragments called?

Answer 26

Sediment

Question 27

The process by which sediment is moved from one place to another is called?

Answer 27

Erosion

Question 28

The process by which sediment comes to rest is called?

Answer 28

Deposition

Question 29

If the temperature and pressure are high enough, the buried rock can change into _______ rock?

Answer 29

Metamorphic.

Question 30

In some cases, the rock can get hot enough to melt and form what?

Answer 30

Magma or molten rock

Question 31

When magma reaches earth surface it is called?

Answer 31

Lava

Question 32

What are the three classes of rock?

Answer 32

Igneous, sedimentary, and metamorphic

Question 33

Forms when minerals that form for solutions or sediment from older rocks get pressed and cemented together.

Answer 33

Sedimentary

Question 34

Forms when magma or lava cools.

Answer 34

Igneous rock

Question 35

Forms when pressure pressure, temperature, or chemical processes change existing rock.

Answer 35

Metamorphic rock

Question 36

This rock forms when the weight from above presses down on the layers of minerals or when minerals dissolved in water solidify.

Answer 36

Sedimentary

Question 37

Sedimentary rocks ate made according to the size and type of fragments they contain. What is an example of these types of rocks?

Answer 37

Sandstone | Limestone

Question 38

Metamorphic may be change in four ways..

Answer 38

By temperature By pressure By temperature and pressure combined By fluids or other chemicals

Question 39

This is a metamorphic rock that forms at high temperatures deep within earth's crust.

Answer 39

Gneiss

Question 40

Series of pressure in which rock changes from one type to another is called?

Answer 40

The rock cycle

Question 41

When igneous rock is exposed at earth's surface it may break down into what?

Answer 41

Sediment

Question 42

With temperature and pressure changes, sedimentary rock may become what? Or they may melt and become what?

Answer 42

Metamorphic | Sedimentary

Question 43

What kind of motions can move rock around?

Answer 43

Tectonic plates

Question 44

What are the two types of vertical movement?

Answer 44

Uplift and subsidence

Question 45

The rising of regions of the crust to higher elevations is what?

Answer 45

Uplift

Question 46

Is the sinking of regions of the crust to lower elevations.

Answer 46

Subsidence

Question 47

This increases the rate of erosion on rock.

Answer 47

Uplift

Question 48

This leads to formation of basins where sediment can be deposited

Answer 48

Subsidence

Question 49

This is an area where a set of deep cracks form

Answer 49

Rift zone

Question 50

All the processes that form _______ rock occur mainly at or near the surface of the earth

Answer 50

Sedimentary

Question 51

What are three types of sedimentary rock?

Answer 51

Clastic | Chemical

Question 52

This sedimentary rock forms when sediments are buried, compacted, and cemented together by calcite or Quartz.

Answer 52

Clastic

Question 53

Fine-grained sedimentary rocks, in which grains are too small to be seen, include what?

Answer 53

Mudstone Siltstone Shale

Question 54

This clastic sedimentary rock is a medium-grained rock with visible grains

Answer 54

Sandstone

Question 55

These two clastic sedimentary rocks are coarse grained and are made up of large particles, such as pebbles, cobbles, and boulders.

Answer 55

Breccia and conglomerate

Question 56

This sedimentary rock forms when water, usually seawater, evaporates

Answer 56

Chemical

Question 57

What is NaCI

Answer 57

Sodium chloride

Question 58

This chemical sedimentary rock forms when sodium ions and chlorine ions in shallow bodies of water become so concentrated that it crystallizes from solution.

Answer 58

Halite

Question 59

This is a fossiliferous limestone that consist of the shells of marine mollusk that have been cemented together by a calcite. It is also a sedimentary rock.

Answer 59

Co quinoa

Question 60

This forms when plant material is buried and changes into _____. It is also an organic sedimentary rock.

Answer 60

Coal

Question 61

What are the two types of metamorphic rock?

Answer 61

Foliated and non-Foliated rock

Question 62

What is a combination of one or more minerals or organic matter?

Answer 62

Rock

Question 63

If the temperature and pressure changes are high enough the buried rock can change into metamorphic rock. In some cases the the rock gets hot enough to form?

Answer 63

Magma

Question 64

Forms when pressure, temperature, or chemical processes change existing rock.

Answer 64

Metamorphic rock