What form of energy transfer heats Earth?

• radiation
• conduction
• convention

Which area of the Earth receives more direct sunlight?

• North Pole
• South Pole
• the Equator
• all parts of the Earth always receive the same amount of sunlight

What are the reasons why the Earth has weather? Check ALL that apply.

• the existence of water
• the atmosphere
• the spherical shape of the planet
• the Earth's tilt and rotation
• the Earth's orbit around the Sun

From the figure, which layer of the atmosphere do you find rain, snow, and clouds?

• troposphere
• stratosphere
• mesosphere
• thermosphere

If you were in a hot air balloon floating up in the troposphere, what are two changes you would expect to experience?

• The temperature would get warmer and the air would become thinner.
• The temperature would get colder and the air would become thinner.
• The temperature would get colder and the air would become thicker.

What temperature air can hold more water vapor?

• warm air
• cold air
• warm and cold air can hold the same amount of water vapor

Select the word that best complete the sentence: _________ is the amount of water vapor in the air compared to how much water vapor the air could hold at that temperature.

• relative humidity
• temperature
• air pressure

How is wind created?

• wind is created by ocean currents
• wind is generated from the trees blowing really hard
• wind is air moving from an area of high pressure to an area of low pressure
• wind is created when clouds move through the troposphere

Which of the following is true about nighttime land temperature and how it affects local winds?

• the land warms up at night, forming a low pressure that rises
• the sea cools at night, forming a high pressure that moves onshore
• land cools at night, forming high pressure that moves offshore

What are the "H" and "L" on this map referring to?

• high and low temperature
• high and low precipitation
• high and low pressure
• humid and non-humid weather