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Quarter 1 Exam / Midterm PART 1
Test Description: Exam Review
Instructions: Answer all questions to get your test result.
1) What is an atom?
A
Energy that is transferred as a consequence of temperature differences.
B
the smallest chemical unit of matter
C
Narrow bands of high-speed winds that circle the earth, blowing from west to east
D
two or more atoms linked together to make a substance with unique properties
2) What are molecules?
A
the smallest chemical unit of matter
B
The number of molecules of a substance in a mixture for every 1 million molecules in that mixture.
C
The moisture content of air
D
two or more atoms linked together to make a substance with unique properties
3) What is concentration?
A
A measure of the energy of random motion in a substance’s molecule.
B
The quantity of a substance within a certain volume.
C
The number of molecules of a substance in a mixture for every 1 million molecules in that mixture.
D
the smallest chemical unit of matter
4) Narrow bands of high-speed winds that circle the earth, blowing from west to east
A
Jet Streams
B
temperature
C
molecule
D
atom
5) Energy that is transferred as a consequence of temperature differences.
A
barometer
B
heat
C
temperature
D
humidity
6) A measure of the energy of random motion in a substance’s molecule.
A
heat
B
temperature
7) The quantity of a substance within a certain volume.
A
parts per million
B
concentration
C
humidity
D
heat
8) An instrument used to measure atmospheric pressure
A
thermometer
B
barometer
9) the smallest chemical unit of matter
A
atom
B
molecule
10) The moisture content of air
A
heat
B
temperature
C
humidity
D
concentration
11) The process by which certain gases trap heat that radiates from the earth.
A
part per million
B
heterosphere
C
ozone
D
Greenhouse Effect
12) The number of molecules of a substance in a mixture for every 1 million molecules in that mixture.
A
temperature
B
concentration
C
parts per million
13) The lower layer of the atmosphere, where the concentration of the air is the SAME as the air at sea-level
A
heterosphere
B
homosphere
14) two or more atoms linked together to make a substance with unique properties
A
Molecule
B
Atom
15) The upper level of the atmosphere where the concentration of the air is very DIFFERENT from the air at sea-level
A
homosphere
B
heterosphere
16) If you wanted to measure an object’s volume, what metric unit would you use?
A
gram
B
foot
C
meter
D
liter
17) If an object has a mass of 66 g, what is its mass in kg?
A
660
B
.66
C
66,000
D
.066
18) How many centimeters are in 32.6 meters?
A
32.6
B
3260
C
.326
D
3.26
19) A metal plaque by the front entrance to our nation’s Capitol in Washington D.C. commemorates the building’s completion in 1826. The plaque is bluish-green in color. What kind of metal is the plaque made of?
A
copper
B
silver
C
iron
D
gold
20) If the humidity increases over the course of four days, which day will feel the hottest? a. Day 1
A
Day 1
B
Day 4
C
Day 3
D
Day 2
*select an answer for all questions
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