Uses of minerals & rocks/ Their impact on the environment
Test your understanding
100
The 3 main layers of the Earth are the _______, _________ & ___________ .
Crust, mantle and core
100
The primary mineral component of sand is ______
Quartz
100
This type of rock makes up 80% of the Earth's crust.
Igneous or Magmatic rocks
100
The part of a mineral deposit which cannot be used.
Slag
100
The highest point on Earth is at the top of Mount Everest at 8,848m above sea level. How far above sea level do you think Lebrija is?
~ 37 m
200
What is the name for the boundary between the crust and the mantle?
Discontinuity.
200
They are not made from an organism and have never been alive. This means that minerals are ________.
Inorganic
200
The process that carries away sediments which have accumulated on the Earth's crust.
Erosion
200
What is the most common use of rocks?
As an energy source
200
The name of the process where magma reaches the surface of the earth (it is above ground)
Vulcanism
300
Which layer of the Earth is the thinnest?
The crust
300
Halides, oxides and sulfates are examples of _________ minerals.
Non-silicate
300
When a rock is composed of more than one mineral it is called a _____________
Polymineral
300
What are the 3 Rs of sustainability?
Reduce, reuse & recycle
300
What can the size of crystals in igneous rocks tell us about them?
How fast the magma cooled.
400
It is made up of 2 layers: one that is solid and one that is molten.
The Core
400
How are mineraloids different from minerals?
They have a disordered internal structure.
400
How do you produce a metamorphic rock? By subjecting a rock to ______, ________ or __________ .
High heat, high pressure or both.
400
Noble metals, such as gold and silver, are used in _________, __________ & ___________
Jewellery, dentistry and medical equipment.
400
Halite is found in human and animal food. What is its more commonly used name?
Salt or rock salt.
500
It is made up of the crust and a portion of the mantle.
The lithosphere
500
Sometimes pyrite is confused with gold. What would be a good way of telling pyrite apart from gold?
By looking at their streaks.
500
A type of rock that is formed from the remains of living things like wood or shells.
Biochemical rock
500
Many environmental problems such as air pollution, global warming, acid rain and oil spills are as a result of using ___________ ___________.
Fossil Fuels
500
James Bond 007 uses cubic zirconia as 'fake diamonds' to trick assassins. However, cubic zirconia is much denser than diamond. How would you be able to tell whether James Bond is giving you a real diamond or 'fake' cubic zirconia?
You would weigh them. Cubic zirconia is heavier than diamond.