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Grade 6 Super Review 6.4 - 6.5 Flashcards | StudBud
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Grade 6 Super Review 6.4 - 6.5
Grade 6 Super Review 6.4 - 6.5
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Introduction to Earth and Environmental Science- Grade 6: VA SOL 6.4-6.5
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Questions
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Answers
1
Which of the following is NOT a compound?
H2O2
CaCO3
CO2
O2
2
Choose the correctly labeled water molecule.
A
C
B
D
3
What word would describe the climate of areas near large bodies of water?
milder
wetter
colder
hotter
4
What type of power plant makes use of kinetic energy of water and turbines?
coal burning power plant
natural gas power plant
hydroelectric power plant
nuclear power plant
5
Which of the following can be broken down into simpler substances by chemical action?
mixture
element
compound
solutions
6
What does point "A" represent?
neutron
nucleus
electron
proton
7
Most water in air is an invisible gas called ____.
argon
oxygen
carbon dioxide
water vapor
8
What subatomic particle is found outside the nucleus of an atom?
neutron
nucleus
proton
electron
9
Ice wedging is an example of ___.
physical weathering
chemical weathering
acid rain
sedimentation
10
Water is an essential resource, which of the following do not require water?
animals
plants
humans
rocks
11
An atom is the smallest part of a/an ____.
compound
molecule
solution
element
12
Large bodies of water moderate climate by ____ heat in summer and ___ heat in winter.
decreasing; increasing
increasing; decreasing
releasing; absorbing
absorbing; releasing
13
What is the chemical formula for water?
H2O
HO2
2HO
H2O2
14
Water treatment and sanitary sewers helped eliminate ___ associated with human waste.
issues
problems
diseases
games
15
Most freshwater on Earth is found in the ____.
lakes
rivers and streams
glaciers and icecaps
oceans
16
What type of weathering is freezing water that can break rock?
chemical
rock cycle
physical
erosion
17
A neutron has which of the following charges?
positive
negative
neutral
magnetic
18
___ is the only substance on Earth that commonly exists in all three states of matter.
Nitrogen
Water
Helium
Hydrogen
19
What holds atoms together in a molecule?
density
gravity
chemical bonds
temperature
20
What does point "C" represent?
proton
neutron
nucleus
electron
21
A water molecules has two separate ends. What are they?
north and south
positive and negative
up and down
male and female
22
Why is it important to conserve water resources?
clean water, human waste, agriculture
agriculture, human health, contamination
power generation, agriculture, human health
power generation, soil erosion, human health
23
You can float a paper clip on water because of what property of water?
adhesion
capillary action
surface tension
cohesion
24
How many different elements are in the formula CaCO
3
?
3
4
2
1
25
How many atoms are in the formula CaCO
3
?
3
4
5
2
26
Abrasion, root wedging, ice wedging, and action of organisms are all types of ____ weathering.
physical
rock
erosion
chemical
27
In chemistry, elements are represented by ____.
symbols
building blocks
ratios
formulas
28
Which of these could be an element? (This is not a real element)
Nic
nic
NIC
nIc
29
Water rises up a narrow tube due to ____.
adhesion
surface tension
capillary action
cohesion
30
Hydration and oxidation are types of _____ weathering.
rock
chemical
solar
physical
31
Water is known as the ____ because it is able to dissolve so many substances.
universal solvent
universal substance
ultimate solvent
ultimate substance
32
Which is NOT a way to conserve water?
Turn off water while brushing.
Take short showers.
Water your lawn less.
Take baths instead of showers.
33
Which statement is true about liquid water?
it takes the shape of the container
it does not freeze
it has a temperature less than Oo C
it is invisible
34
The property of water that makes it stick to other substances is called ____.
adhesion
capillary action
cohesion
surface tension
35
Al, Cu, N and O are symbols for ____.
elements
compounds
mixtures
particles
36
What is water with dissolved gases and other chemicals that cause minerals in rock to change?
physical weathering
rock cycle
erosion weathering
chemical weathering
37
The property of water that makes it stick to itself is called _____.
surface tension
capillary action
adhesion
cohesion
38
Two or more elements that are chemically combined is called a ____.
molecule
compound
mixture
solution
39
Water tends to resist changes in temperature because of its ____.
high specific heat
high heat of vaporization
adhesive properties
cohesive properties
40
What area would least likely attract human settlement?
desert
spring
river
lake
41
Substances that CANNOT be broken down physically into other substances are _____.
mixtures
gases
sollutions
compounds
42
During the process of evaporation, liquid water becomes ___.
molecules of water vapor
separate atoms of water
atoms of hydrogen and oxygen
tiny drops of water
43
Atoms are made of subatomic particles, which of the following are NOT subatomic particles?
neutron
proton
nucleus
electron
44
Why does ice rise to the top of the liquid when placed in water?
the pressure of the water holds it up
it is less dense than water
Gases inside the ice make it buoyant
it is colder than water
45
Elements can be represented by ____.
electrons
compounds
protons
chemical symbols
46
Today scientists know that the "structure" of an atom is a/an ______.
electron cloud
solid ball
planetary model
empty ball
47
A substance, like water, that dissolves another substance is called a ____.
solvent
solution
solution
mixture
48
A proton has which of the following charges?
positive
neutral
magnetic
negative
49
Water is able to absorb heat energy without showing much change in _____.
temperature
range
amount
energy
50
Most of Earth's water, about 97% is what type of water?
salt water
brackish water
polar cap water
freshwater
