WorksheetsCornish Mining
Total questions: 75
Worksheet time: 54mins
Name
Class
Date
1.
Ore is
a)
any type of rock
b)
a rock with metals
c)
a rock with metals worth something to someone
d)
a rock with minerals
2.
A rock formed from lava or magma is classified as
a)
igneous
b)
metamorphic
c)
sedimentary
3.
A rock formed from heat and pressure is
a)
igneous
b)
metamorphic
c)
sedimentary
4.
Sedimentary rock results from
a)
heating
b)
melting
c)
erosion
d)
pressure
5.
The luster of a mineral describes
a)
its density
b)
how it cracks
c)
its color
d)
the shininess
6.
Which mineral is the softest on Moh's hardness scale?
a)
diamond
b)
quartz
c)
talc
d)
topaz
7.
What do we call the center of the Earth?
a)
Mantle
b)
Crust
c)
Apple
d)
Core
8.
Which is the hottest part of the Earth?
a)
The core
b)
The mantle
c)
The crust
d)
The Asthenosphere
9.
What layer is between the inner core and the mantle?
a)
asthenosphere
b)
crust
c)
outer core
d)
lithosphere
10.
How far is it to the center of the Earth in miles?
a)
4000
b)
400
c)
40,000
d)
27408
11.
Which two metals are thought to be found in the core?
a)
iron and steel
b)
iron and nickel
c)
gold and silver
d)
iron and copper
12.
The layer of gases surrounding the Earth
a)
Hydrosphere
b)
Cryosphere
c)
Oxyosphere
d)
Atmosphere
13.
Which portion of the crust is thicker?
a)
Continental
b)
Oceanic
14.
Which layer is made up of iron and nickel?
a)
Crust
b)
Mantle
c)
Inner Core
d)
Lithosphere
15.
Which layer of Earth is liquid metal?
a)
Outer Core
b)
Mantle
c)
Inner Core
d)
Asthenosphere
16.
A rock formed from fragments of other rocks is a(n)
a)
Metamorphic Rock
b)
Sedimentary Rock
c)
Extrusive Rock
d)
Igneous Rock
17.
An igneous rock containing large crystals is most likely a(n)
a)
Chemical Rock
b)
Foliated Rock
c)
Extrusive Rock
d)
Intrusive Rock
18.
If heat and pressure inside the Earth cause a rock to melt, the material that formed would be
a)
Metamorphic
b)
Magma
c)
Sedimentary
d)
Igneous
19.
Cooling & crystalization produce
a)
igneous rocks
b)
metamorphic rocks
c)
sedimentary rocks
20.
True or False: Once a rock is sedimentary, it cannot become an igneous rock.
a)
True
b)
False
21.
Sedimentary rocks may contain fossils.
a)
True
b)
False
22.
the dropping of sediments in layers.
a)
compaction
b)
deposition
c)
erosion
d)
weathering
23.
squeezing sediments together in layers
a)
compaction
b)
weathering
c)
cementation
d)
deposition
24.
A type of rock that forms from the cooling of molten rock at or below the surface of the earth
a)
Igneous Rock
b)
Metamorphic Rock
c)
Sedimentary Rock
d)
chemical Rock
25.
Extrusive rocks that form quickly above the Earths surface have
a)
small crystals
b)
large crystals
c)
small and large crystals
d)
no crystals
26.
A slow cooling igneous rock will have _____ crystals
a)
large
b)
small
c)
average
d)
black
27.
Metamorphic rocks form from ___.
a)
igneous rocks
b)
other metamorphic rocks
c)
sedimentary rocks
d)
all types of rocks
28.
When metamorphic rocks are formed, the extreme heat is usually caused by the _______.
a)
gravity in the atmosphere
b)
collision of tectonic plates
c)
the fiery hot magma in the Earth's mantle
d)
weight of the mountains
29.
Which of these is a metamorphic rock?
a)
pumice
b)
sandstone
c)
slate
d)
coal
30.
Has small or no crystals because of rapid cooling
a)
sedimentary
b)
metamorphic
c)
extrusive igneous
d)
intrusive igneous
31.
Has large crystals because of slow cooling
a)
sedimentary rock
b)
metamorphic rock
c)
intrusive igneous rock
d)
extrusive igneous rock
32.
Has wavy bands.
a)
sedimentary rock
b)
metamorphic rock
c)
extrusive igneous rock
d)
intrusive igneous rock
33.
Contains fossils.
a)
sedimentary rocks
b)
metamorphic rocks
c)
extrusive igneous rocks
d)
intrusive igneous rocks
34.
Which layer is oldest?
a)
A
b)
W
c)
G
d)
Z
35.
How old do Paleontologists believe the Earth is?
a)
2015 years old
b)
3.6 billion years old
c)
4.6 billion years old
d)
4.6 million years old
36.
Which animal part would most likely form a fossil?
a)
Muscle
b)
Fur
c)
Lung
d)
Bone
37.
A gem's size (carat) can change its value.
a)
True
b)
False
38.
A gem that is big and shiny will always be worth a lot of money.
a)
true
b)
false
39.
How can miners be responsible?
a)
Leave open-pit mines alone when they're finished taking all the minerals.
b)
Reclaim, or clean up the land when they're finished taking all the minerals.
c)
Only mine the valuable minerals.
d)
Only dig surface mines.
40.
Deposits of minerals from which metals and nonmetals can be removed profitably.
a)
Ore
b)
Conduction
c)
Placer Deposits
d)
Wire
41.
The alkali metals are in group 1, on the far left of the periodic table. Which of these is NOT an alkali metal?
a)
Lithium
b)
Iron
c)
Potassium
d)
Francium
42.
How can you tell that a metal is reacting with water?
a)
Colour change
b)
Bright light
c)
Fizzing
d)
It gets colder
43.
What gas is always produced when a metal reacts with water?
a)
Oxygen
b)
Carbon Dioxide
c)
Hydrogen
d)
Carbon Monoxide
44.
When the alkali metals react with water, which reacts most vigorously?
a)
Francium
b)
Rubidium
c)
Potassium
d)
Sodium
45.
When a metal salt reacts with a more reactive salt, what sort of reaction occurs?
a)
Displacement
b)
Neutralisation
c)
Combustion
d)
No Reaction
46.
When magnesium reacts with copper sulphate, there are two products. What are they?
a)
Magnesium and Copper
b)
Magnesium Sulphate and Copper
c)
Magnesium Sulphate and Copper Sulphate
d)
Magnesium and Copper Sulphate
47.
When copper and magnesium sulphate are mixed together, there is no reaction. Why?
a)
Magnesium is more reactive than copper
b)
Copper is more reactive than magnesium
c)
Copper never reacts with metal salts
d)
Magnesium Sulphate never reacts with metals
48.
Metals have many useful properties. For example, they...
a)
...conduct electricity
b)
...are malleable
c)
...are good thermal conductors
d)
All of these
49.
Another useful property of metals is that they are ductile. What does this mean?
a)
The conduct heat well
b)
They can be bent into shape
c)
They have high melting points
d)
They can be stretched into wires
50.
In order to make use of the many useful properties of metals, we need to extract them so that they are in their pure form. A common way of extracting many of the less reactive metals is to heat their minerals with what?
a)
Carbon
b)
Helium
c)
Oxygen
d)
Silicon
51.
Which of the following is MOST reactive?
a)
Magnesium
b)
Lead
c)
Tin
d)
Copper
e)
Zinc
52.
Which metal is more reactive than calcium?
a)
magnesium
b)
potassium
c)
silver
d)
aluminum
53.
Choose the least reactive metal
a)
calcium
b)
magnesium
c)
iron
d)
copper
54.
What does displacement mean?
a)
A chemical reaction where a less reactive metal takes the place of a more reactive metal in a compound.
b)
A chemical reaction where a more reactive metal takes the place of a less reactive metal in a compound.
c)
A more reactive metal is removed from a compound.
55.
Which is least reactive?
a)
gold
b)
Calcium
c)
Magnesium
56.
Which of these isn't in the fire triangle?
a)
Fuel
b)
Heat
c)
Oxygen
d)
Carbon dioxide
57.
Another term for burning is
a)
Fire triangle
b)
Magnesium oxide
c)
Combustion
d)
Bustion
58.
8.7: Combustion is when a __________ reacts with oxygen
a)
petrol
b)
fuel
c)
fire triangle
d)
carbon dioxide
59.
Incomplete combustion is when there is a limited amount of oxygen.
a)
True
b)
False
60.
Complete combustion is when there is plenty of oxygen to react with.
a)
True
b)
False
61.
What does incomplete combustion produce that complete combustion doesn't?
a)
Carbon monoxide
b)
Water
62.
What is carbon monoxide?
a)
A toxic gas
b)
A large solid
63.
Why do we burn a fuel?
a)
I don't know.
b)
To release energy
c)
To lose energy
d)
To produce carbon dioxide
64.
The word equation for combustion is:
fuel + oxygen -->
water + ________ __________
fuel + oxygen -->
water + ________ __________
a)
Carbon dioxide
b)
Limewater
65.
When hydrogen reacts with oxygen, the product is:
a)
water
b)
oxide
c)
carbon dioxide
d)
hydrogen
66.
The products of combustion of a hydrocarbon are:
a)
hydrogen + oxygen
b)
carbon dioxide + water
c)
carbon dioxide + hydrogen
d)
carbon + water
67.
What is electrolysis?
a)
breaking down of a compound using a current
b)
making a compound using a current
68.
Which statement correctly describes the 2 electrodes?
a)
The anode is negative and the cathode is positive
b)
The anode and cathode are both positive
c)
The anode is positive and the cathode is negative
d)
The anode and cathode are both negative.
69.
What is the name given to the solution that is being electrolysed?
a)
Salt solution
b)
Electric solution
c)
Mineral solution
d)
Electrolyte
70.
What is the name of the positive electrode?
a)
cathode
b)
anode
71.
What is the name of the negative electrode?
a)
cathode
b)
anode
72.
Which of the following is MOST reactive?
a)
Magnesium
b)
Lead
c)
Tin
d)
Copper
e)
Zinc
73.
Does Iron displace Aluminium?
a)
Yes
b)
No
74.
A displacement reaction is a chemical reaction in which a _____ element displaces another element
a)
Less
b)
The same
c)
Moore
d)
More
75.
An organism that no longer exists on Earth is called
a)
Decayed
b)
Extinct
c)
Evolved
d)
Preserved
100 %
