Quarter 2 Unit Test Review

The weather forecast tomorrow says there will be a 15 mph northeast wind and a high temperature of 72 degrees Fahrenheit. What three instruments will a meteorologist use to make this prediction?

• anemometer, wind vane, thermometer

• barometer, hygrometer, wind vane

• thermometer, satellite image, hygrometer

• wind vane, satellite image, barometer

Answer explanation

A meteorologist will use an anemometer to measure wind speed, a wind vane to determine wind direction, and a thermometer to measure temperature.

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NGSS.MS-ESS2-5

Which of the following is true about the weather tools pictured here.

• B shows a hygrometer and measures humidity

• A shows a wind vane and measures wind speed

• C shows a barometer and measures atmospheric pressure

• E shows a rain gauge and measures type of precipitation

Answer explanation

A shows an anemometer and measures wind speed. B shows a thermometer and measures temperature. C shows a barometer and measures atmospheric pressure. D shows a wind vane and measures wind direction. E shows a rain gauge and measures amount of precipitation.

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What are the steps of cloud formation?

• 1. Evaporated water vapor rises

  2. Air meets dew point temperature

  3. Condensation

• 1. Precipitation falls in an ocean

  2. Air meets relative humidity point

  3. Condensation

• 1. Glaciers melt

  2. Water meets evaporation temperature

  3. Precipitation falls

• 1. Evaporated water vapor sinks

  2. Air meets freezing point temperature

  3. Sublimation

Answer explanation

Evaporation is when liquid water turns into water vapor. Water vapor will rise and cool. Once it reaches its dew point (temperature where water vapor turns into liquid water), condensation occurs. We see small liquid water droplets collected in the sky as clouds.

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Which of the following is true about these two weather symbols?

• Symbol 1 brings bad storms and symbol 2 brings clear skies

• Symbol 1 brings clear skies and symbol 2 brings bad storms

• Symbol 1 shows a warm front and symbol 2 shows a cold front

• Symbol 1 shows a cold front and symbol 2 shows a warm front

Answer explanation

Think of the triangles as icicles to remember cold front. The half circle can be thought of as a sunrise or melted water drops to remember warm front. All fronts bring cloudy weather, precipitation, and/or bad storms.

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A ___________ weather front occurs when a cold air mass moves forward quickly, pushing the warm air mass up.

• Cold

• Warm

• Stationary

• Occluded

Answer explanation

Cold fronts bring cold air into the area.

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A ___________ weather front occurs when a warm air mass moves forward slowly, rising above the cold air mass.

• Cold

• Warm

• Occluded

• Stationary

Answer explanation

Warm fronts bring warm air into the area.

Tags

NGSS.MS-ESS2-5

If atmospheric pressure in a city is increasing...

• there are few clouds because cooler air is sinking downward

• there are many clouds because the warm air is very humid

• there are few clouds because the cooler air is rising upward

• there are many clouds because the warmer air is rising upward

Answer explanation

High pressure happens when cooler air sinks. This keeps a lot of the water vapor from rising high enough to meet their dew point, so less clouds are created.

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If atmospheric pressure in a city is decreasing...

• there are few clouds because cooler air is sinking downward

• there are many clouds because the warm air is very dry

• there are few clouds because the cooler air is rising upward

• there are many clouds because the warmer air is rising upward

Answer explanation

Low pressure happens when warmer air is rising and the water vapor will mostly likely condense and create many clouds and possibly precipitation.

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All fronts produce clouds and possible precipitation, but which type of weather front creates the worst storms and why?

• Warm fronts because warm air slowly rising creates low pressure slowly that lasts longer

• Cold front because the cold air sinks quickly creating very high pressure

• Cold fronts because they push the warm air up so quickly creating very low pressure

• Stationary fronts because the clouds stay for longer

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How do differences in air pressure affect the movement of air?

• Air always moves from areas of high pressure to areas of low pressure.
• Air always moves from areas of low altitudes to high altitudes.
• Air always moves from areas of low pressure to areas of high pressure.
• Air always moves from east to west.

Answer explanation

When air is moving, it is wind. Wind is the cold air (high pressure) swooping in to fill the space that the warm air (low pressure) left when it rose up.

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