Weather Unit Test Review

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others
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6th - 8th Grade
•
Medium
Krystle Gonzalez
Used 10+ times
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24 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
1. A boundary in which two different air masses meet and do not mix, causing a change in the weather is:
a. the jet stream
b. the greenhouse effect
c. air pressure
d. a weather front
Answer explanation
A weather front is the boundary where two different air masses meet and do not mix, leading to changes in weather. This distinguishes it from the jet stream, greenhouse effect, and air pressure, which do not specifically describe this phenomenon.
2.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
2. A large section of air with the same temperature and moisture level is called ________________.
a. a pressure gradient
b. an air mass
c. a hemisphere
d. a hurricane
Answer explanation
A large section of air with uniform temperature and moisture is known as an air mass. This term specifically describes the characteristics of the air, making option b the correct choice.
3.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
3. The Sun strikes the Earth the most at the Equator and the least at the poles. This causes warm air to ____________ from the equator and cold air to ___________ at the poles.
a. stay, leave
b. leave, stay
c. rise, sink
d. sink, rise
Answer explanation
The Sun heats the Equator more, causing warm air to rise there. Conversely, at the poles, the air is cooler and denser, leading it to sink. Thus, warm air rises from the equator and cold air sinks at the poles, making 'rise' and 'sink' the correct choices.
4.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
5. What is humidity?
Water, in liquid or solid form, that falls from the atmosphere.
The atmospheric conditions, along with short-term changes, of a certain place at a certain time.
The amount of water vapor in the air.
The force that a column of air applies on the air or a surface below it.
Answer explanation
Humidity refers to the amount of water vapor in the air, which is crucial for understanding weather and climate. The other options describe different atmospheric phenomena, but only this choice accurately defines humidity.
5.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
6. In general, how does air move around the Earth?
a. from areas with deeper ocean to areas with shallower oceans
b. from areas of lower air altitude to areas of higher air altitude
c. from areas of higher temperature to areas of lower temperature
d. from areas of lower temperature to areas of higher temperature
Answer explanation
Air moves from areas of higher temperature to areas of lower temperature due to differences in pressure. This movement helps to equalize temperature and pressure across the Earth's surface, driving weather patterns.
6.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
8. A cold front moving into an area can bring what type of weather?
a. warmer temperatures, clear and sunny skies
b. cooler temperatures, clear skies
c. warmer temperatures, clouds
d. cooler temperatures, clouds, and precipitation
Answer explanation
A cold front typically brings cooler temperatures, increased cloud cover, and precipitation as warm air is forced upward, leading to weather changes. Thus, the correct answer is d: cooler temperatures, clouds, and precipitation.
7.
MULTIPLE CHOICE QUESTION
30 sec • 3 pts
9. The name of the instrument used to measure wind speed
a. anemometer
b. meter stick
c. thermometer
d. barometer
Answer explanation
The correct instrument to measure wind speed is an anemometer. A meter stick measures length, a thermometer measures temperature, and a barometer measures atmospheric pressure.
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