Log in
Sign up for FREE
arrow_back
Library

C05 a+b EOTT - How is our planet changing?

star
star
star
star
star
Last updated 2 days ago
32 questions
Required
1
Required
1
Required
1
Required
1
Required
1
Required
1
Required
1
Required
1
Required
1
Required
1
Required
1
Required
1
Question 1
1.

Question 2
2.

Question 3
3.

Question 4
4.

Question 5
5.

Question 6
6.

Question 7
7.

Question 8
8.

Question 9
9.

Question 10
10.

Question 11
11.

Question 12
12.

This question is about the geosphere.
1
2
3
This is question is about the three types of rock found in the Earth’s crust.
2
1
2
1
This question is about the igneous rock granite.


Igneous rock can be formed from molten rock inside the crust or on the surface of the Earth.
3
3
2
This question is about sedimentary rock.
2
2
2
2
Describe how sandstone is formed at the bottom of the sea.
You have been given sentence starters to help you.
1
1
1
1
1
1
What do geologists call the chemical substances rocks are made of?
minerals
crystals
sediments
magmas
Which of the following is (mostly) made of a single substance?
lava
a crystal
magma
a rock
What part of the geosphere is liquid?
outer core
inner core
mantle
crust
Which layer of the geosphere is thinnest?
crust
inner core
outer core
mantle
What is a tectonic plate a section of?
crust only
crust and upper mantle
crust, upper and lower mantle
all four parts of the geosphere
Which of the following does not cause continental drift?
ridge push
convection currents in mantle
volcanoes
slab pull
How fast to tectonic plates move?
a few cm a year
a few cm a month
a few cm a week
a few cm a day
What is an “intrusive” igneous rock?
one formed under ground
one only found above ground
one formed above ground
one only found below ground
What type(s) of rock can form metamorphic rock?
igneous rocks only
sedimentary rocks only
both sedimentary and igneous rock
none of the above
Do minerals melt when metamorphic rock is formed?
never
always
occasionally
sometimes
What pH does normal rainwater have?
4-6
1-3
7
7-9
What types of rock can react with rainwater?
Rocks made of any mineral
Rocks made of carbonate minerals
All sedimentary and igneous rock
All sedimentary rocks
Question 13
13.

Question 14
14.
Label the four main layers that make up the geosphere Layers: mantle, crust, inner and outer core
_______
_______
_______
_______
Question 15
15.

The surface of the Earth is made of different “tectonic plates” which are huge slabs of the crust and upper mantle which move at roughly the speed that your fingernails grow. Scientists believe all the continents were once joined together. Describe three pieces of evidence that support the theory that continental were once all joined together.

Question 16
16.

Draggable itemarrow_right_altCorresponding Item
arrow_right_alt
arrow_right_alt
arrow_right_alt
Question 17
17.

Rocks are mixtures of chemical substances called minerals.

What is a mixture made of?

Question 18
18.

Minerals are chemical substances with 'giant structures'

Why do substances with giant structures have high melting points?

Question 19
19.

Silicon dioxide is a mineral with a melting point of 1700 OC. It is found in the Earth’s mantle. The top of the mantle has a temperature of 1400 OC. What state of matter will silicon dioxide be at 1400 OC?

Question 20
20.
Fill in the blanks to describe how igneous rock is formed.

Igneous rock is formed when molten rock _______ and crystals solidify. Igneous rock is formed on the surface of the earth when _______ cools _______ forming rock made of small crystals. Igneous rock is formed under the Earth's surface when _______ cools _______ forming large crystals.

Word bank (words can be used once, twice or not at all): warms, cools, magma, lava, faster, slower
Question 21
21.

Granite is formed on the surface of the Earth.

Describe the structure of granite.

Question 22
22.

Granite can be transformed into the metamorphic rock gneiss.
Describe how metamorphic rock is formed inside the earth.

Question 23
23.

Draggable itemarrow_right_altCorresponding Item
arrow_right_alt
arrow_right_alt
arrow_right_alt
Question 24
24.

Rocks can be weathered by physical, chemical and biological processes. Decide if the example is of a chemical, physical or biological process and explain your answer. Some rocks can be weathered by normal rainwater. The rainwater reacts with certain minerals in the rock to form a salt that can dissolve away and carbon dioxide gas.

Question 25
25.

Decide if the example is of a chemical, physical or biological process and explain your answer.

Water can get into the cracks in rock. If the temperature drops below 0 oC it will freeze, expand and push on the rock. If this happens many times it can break the rock into smaller pieces.

Question 26
26.

Draggable itemarrow_right_altCorresponding Item
arrow_right_alt
arrow_right_alt
arrow_right_alt
Question 27
27.

A layer of sand grain sediment collected at the

Question 28
28.

Over millions of years the sediments became buried under

Question 29
29.

Water from the sea soaked into

Question 30
30.

The weight of the sediment layers above

Question 31
31.

As the sediments compacted together dissolved minerals in the water

Question 32
32.

Crystallised minerals from the water

Which of the following statements describes the geosphere?
Water on or near the surface of the Earth
Thin layer of (mostly) gaseous substances surrounding the Earth
Mostly solid mineral parts of the Earth
All of the above are parts of the geosphere
Match each type of rock to the description of its structure.
Igneous
Cemented together grains
Metamorphic
Randomly arranged crystals
Sedementary
Crystals that are mostly arranged in bands
Sediment can be formed from rocks by weathering and erosion.

Match up each term to its meaning.
Sediment
Breaking down of rock into smaller pieces in one place.
Weathering
small pieces of rock are moved by water, ice or air.
Erosion
Small pieces of solid moved and dropped in a new location.
Sedimentary rock can be formed at the bottom of the ocean over millions of years. Sandstone is a sedimentary rock made from sand grains by sedimentation, compaction and cementation.

Match the three words to their meanings.
Cementation
Layers of sediment collecting in one place
Sedimentation
Sediments getting squashed closer together
Compaction
Sediments becoming stuck together by minerals