2012­2013 Science Grade 6 Unit 03: Elements (Test ID#20098) from Rachel
Smith
Some questions (c) 2012 by CSCOPE.
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1 Which of the following is the symbol for
chlorine?
5
Which of the following statements are
characteristics of an element?
A
Cl
B
Ch
C
C
II. a pure substance
D
Ce
III. represented by a
I . made from a
mixture
symbol
I V . make up matter
2
3
4
The chemical symbol for nitrogen is —
on Earth
A
Na
B
N
A
I, III
C
Ni
B
I, IV
D
Ne
C
II, IV
D
II, III, IV
The chemical symbol Ca represents —
A
chlorine
B
calcium
C
cesium
D
carbon
Which of the following is not an element?
A
water
B
helium
C
nitrogen
D
sodium
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Use the graphic above to answer the next four questions.
6
Which pair of terms has the same relationship
8
as the following?
Complete the analogy.
C : living matter :: ______: atmosphere
Nitrogen—Atmosphere
Na
A
hydrogen—oceans
B
N
B
sodium—living matter
C
H
C
carbon—oceans
D
Cl
D
calcium—living matter
9
7
A
Which two elements make up the most mass of
Which element is found in the ocean and the
the human body?
atmosphere?
A
hydrogen and oxygen
A
uranium
B
calcium and potassium
B
oxygen
C
chlorine and nitrogen
C
nitrogen
D
oxygen and carbon
D
gold
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Use the following data table to answer the next two questions.
Abundance of Elements in the Earth’s Crust
10
Element
Percentage
Oxygen
47
Silicon
28
Aluminum
8
Iron
5
Calcium
4
Sodium
3
Potassium
3
Magnesium
2
Which graph below BEST represents the most
11
What percent do Ca and Na make up of the
abundant elements in the Earth’s crust ?
Earth's crust?
A
A
2
B
5
C
7
D
28
B
C
D
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Use the following data table to answer the next two questions.
Melting and Boiling Points of Selected Elements
Element
Melting Point(°C)
Boiling Point (°C)
Chlorine
­101.0
­34
Bromine
­7.0
58.9
Iodine
113.5
184
Astatine
302
337
12 Which thermometer shows the boiling point
13
What is a valid conclusion based on the
of bromine?
Melting and Boiling Point table?
A
A
The boiling points increase in a
predictable pattern.
B
The melting points increase as you move
down the table.
C
The melting points decrease as you move
down the table.
B
D
There are no patterns of data in the table.
C
D
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Use the following microscopic view of the particles to answer the next two questions.
14
Which of these models BEST represents the
element neon as a gas?
15
A
Model A
B
Model B
C
Model C
D
Model D
What is an advantage of using models like the
ones above to study elements?
A
The particles move too slowly to be seen
easily.
B
The particles are too dangerous.
C
The particles are too small to observe.
D
The particles cannot be placed in
containers.
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16
Most Abundant Elements in the Ocean
by Mass Element
17
During a laboratory experiment, your lab
group runs out of a mystery element you are
testing. Your teacher is helping another lab
Percent
Oxygen
86
group, but you notice that the supply room
Hydrogen
11
door is open. What should you do?
Chlorine
1.9
A
Sodium
1.1
Sneak into the supply room and get some
more of the chemical. Do not tell the
teacher because you were not doing
Which pie chart MOST accurately reflects the
anything wrong, and there was not a
information in the table?
reason to worry them.
A
B
Walk into the supply room and get some
more of the chemical. Then tell the
teacher what you have done when he is
finished helping the other group.
C
Borrow another lab group's mystery
substance. Then tell the teacher what you
have done when he is finished helping the
other group.
B
D
Raise your hand, and wait for the teacher
to help you. C
D
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18
Explain the statement, "All matter is made from elements, and elements are pure substances."
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19
There is a lot of oxygen in the Earth's crust. Explain why we cannot breathe it?
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