Layers of the Earth
S
I
M
Mining
100
What layer of the earth are we currently on?
Crust
100
What is erosion?
Erosion referes to rock pieces moving due to wind, water, or ice.
100
An igneous rock is formed when magma ______
Cools
100
What are the three types of rocks?
Metamorphic
Sedimentary
Igneous
100
What is mining?
Digging of rocks (and minerals) from the ground
200
Name an example of something IN NATURE that has layers (other than the earth)
Onion, atmosphere, tree
200
A sedimentary rock can turn into another type of rock. Name the type of rock it can turn into.
Metamorphic rock
200
Does magma cool faster on the surface of the crust OR in the crust?
Surface
200
How does a metamorphic rock become magma?
Melting
200
Name THREE everyday object that involve mined materials
toothpaste
paint
lightbulb
thermometer
pencil
iPhone
bathroom tile
windows
300
DOUBLE POINTS
Name the 5 layers of Earth IN ORDER from inside to outside
Inner core, outer core, lower mantle, upper mantle, crust
300
Which TWO processes slowly remove rock pieces so they can be made into sedimentary rock?
Weathering and erosion
300
An igneous rock can MELT into...
Magma
300
Where does a metamorphic rock form?
Deep in the earth's crust
300
DOUBLE POINTS
Geology is the study of...
the earth
400
Give one reason why it's impossible to dig through the earth to the other side
HEAT
or
PRESSURE
400
TRIPLE POINTS
Why are fossils found in sedimentary rock?
They are the softest rock, allowing impressions to be made easily.
400
What is the difference between an intrusive and extrusive rock?
Intrusive is below earth's surface, extrusive is above earth's surface
400
How are metamorphic rocks formed?
High temperature and pressure
400
What are THREE negative effects of mining?
Pollutes water
Pollutes air quality
Destroys animal habitats
Can be dangerous
500
What temperature is the earth's inner core?
5,000°C – 6,000°C
500
What is sediment?
Tiny pieces of minerals and plants deposited into the bottom of lakes and oceans.
500
How does a sedimentary rock become a igneous rock?
Sedimentary rock MELTS into MAGMA then COOLS into IGNEOUS rock
500
DOUBLE POINTS
What is foliation?
Repetitive layering on metamorphic rocks
500
What are TWO positive effects of mining?
Jobs
Mined materials are important to everyday life