BP Weather

What is weather?

• The state of the atmosphere at a particular time.

• The amount of moisture in the air.

• The number of clouds in the sky.

• The average temperature.

Tags

NGSS.MS-ESS2-5

Why is the temperature lower at night than during the day.

• There is less water at night.

• The temperature depends on the energy from the sun.

• Wind blows harder at night.

• There are more clouds at night to block the sun's rays.

Tags

NGSS.MS-ESS2-6

What device measure the air pressure?

• Thermometer

• Barometer

• Weather Vane

• Carburetor

If it is a hot day, what can you conclude?

• The wind is blowing extremely fast.

• The air can hold very little moisture.

• There are lots of clouds in the sky.

• The air can hold a lot of moisture.

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS2-6

Why can't you see water vapor in the air?

• There's very little of it.

• It exists as a clear colorless gas.

• It is all far away in the upper atmosphere.

• It's all been condensed.

Tags

NGSS.MS-PS1-4

What is the difference between absolute humidity and relative humidity?

• Absolute humidity is expressed as a percentage, relative humidity is expressed by a whole number.

• Absolute humidity is how much water air can hold, relative humidity represents how much water the air actually holds.

• Relative humidity makes the air sticky, absolute humidity makes the air dry.

• Absolute humidity represents how much water the air actually holds, relative humidity is how much water the air can hold.

Tags

NGSS.MS-ESS2-4

Why does it tend to be cooler near or at the earth's poles?

• They have worst weather.

• They are farthest from the sun.

• Sunlight strikes the poles at extreme angles.

• They have high absolute humidity.

Tags

NGSS.MS-ESS2-6

What are the characteristics of a high-pressure system?

• Wind and rain

• Clear skies and sun

• Humidity and thunder

• Extremely hot temperatures

Tags

NGSS.MS-ESS2-5

If the air is holding one-third as much moisture as it can possibly hold, what is the relative humidity?

• 50%

• 25%

• 33%

• 67%

Tags

NGSS.MS-ESS2-5

What will happen if the relative humidity is 100% and the temperature begins to fall?

• The air will become sticky and uncomfortable.

• It will start to rain.

• The temperature will rise.

• The barometric pressure will rise.

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-4