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Science 7 Unit 5 Planet Earth Topics 1-3 Flashcards | StudBud
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Science 7 Unit 5 Planet Earth Topics 1-3
Science 7 Unit 5 Planet Earth Topics 1-3
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1
The dark colored, rich layer of soil that contains humus and small grains of rock:
leached soil
extrusive
topsoil
bedrock
2
Scratches and scrapes in bedrock caused by rocks frozen in glaciers:
crystals
sediments
striations
stratification
3
A mineral has a hardness greater 5 if:
it cannot scratch a copper penny
it scratches glass
it can be scratched with your fingernail
it can be scratched with an iron nail
4
Obsidian is an example of which rock type:
metamorphic
igneous extrusive
sedimentary
igneous intrusive
5
Example of a sedimentary rock:
sandstone
obsidian
slate
granite
6
Best chance of finding a fossil is to look at this type of rock:
metamorphic
sedimentary
igneous extrusive
igneous intrusive
7
TRUE or FALSE: Acidic fluids can be made by bacteria and fungi.
True
False
8
The landform indicated by the arrows in the picture below:
erratics
schist
humus
moraines
9
The wearing down of rock by windblown particles that strike the rock:
cementation
striation
compaction
abrasion
10
Rock damage that is caused by water that repeatedly freezes and thaws:
leaching
composting
glaciation
frost wedging
11
TRUE or FALSE: A mineral that is gold in color will always leave a gold streak on porcelain tile.
False
True
12
True or false: I will study tonight.
True
False
13
Decaying material in soil:
rock fragments
compost
humus
acids
14
Sediments are formed from:
compaction and cementation
erosion and weathering
melting and cooling
heat and pressure
15
The building blocks of rocks:
sediments
minerals
compost
crystals
16
Conglomerate is an example of which rock type:
sedimentary
igneous intrusive
metamorphic
igneous extrusive
17
The visible evidence of layers in rock:
leaching
striations
compaction
stratification
18
Agent of erosion responsible for landslides and rock slides like Frank Slide:
wind
water
glaciers
gravity
19
Example of chemical weathering:
acid rain
plant root wedging
frost wedging
wave action
20
The shininess of a mineral is which property?
lustre
streak
crystal structure
cleavage
21
On Moh's Hardness Scale, the hardest mineral is:
diamond
feldspar
quartz
talc
22
Basalt is an igneous rock formed on Earth's surface. So it was most likely made from:
soil
magma
lava
sediments
23
Mechanical weathering is
the physical break up of rocks by forces like gravity, wind, and water
the layering and cementing together of rock
breakdown of rock through chemical reactions
breakdown of rock by living organisms
24
TRUE of FALSE: There are over 3000 minerals!
False
True
25
TRUE or FALSE: Igneous extrusive rocks tend to have larger crystals than igneous intrusive rocks.
False
True
26
Limestone is a sedimentary rock that can form the metamorphic rock called:
slate
gneiss
marble
schist
27
Large rocks caught up in a glacier and then left behind when the glacier melts back are called
erratics
sediments
moraines
parent rocks
28
Metamorphic rocks are formed from
weathering and erosion
compaction and cementation
heat and pressure
melting and cooling
29
Granite, the most common rock, is made of the minerals feldspar, mica, and ....
quartz
copper
pyrite
talc
30
Mica is a mineral that breaks along smooth, flat surfaces. This property of minerals is called:
lustre
hardness
fracture
cleavage