A blanket of air surrounding the Earth
Atmosphere
What heats the Earth's surface
The sun
This tool shows the wind's direction and speed
Wind sock
What tool is used to measure the amount of rain that falls?
a rain gauge
This is an area with a dry climate
desert
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Moving air in Earth’s atmosphere
Wind
Temperatures at night ___________ compared to the daytime.
a. are higher
b. change faster
c. change slower
d. are lower
d. are lower
*DAILY DOUBLE*
Hot air is (heavier/lighter) than cold air, so it rises.
lighter
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Rain and snow are forms of
precipitation

How much rain was collected on Wednesday?
a. 2 cm
b. 6 cm
c. 12 cm
b. 6 cm
This is a graph of rainfall in San Francisco. During which season would it be MOST important to pack an umbrella.
Winter
*DAILY DOUBLE*
This is a tool used to measure temperature
Thermometer
A arrow on a wind vane shows us the direction the wind is...
coming from
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When liquid water turns into water vapor, it is called
evaporation

*DAILY DOUBLE*
Which season in San Francisco is the driest?
Summer
These are created from tiny droplets of water coming together in the atmosphere
clouds
Temperature is measured using these two scales
Celsius and Fahrenheit
This climate typically has all four seasons.
1. Tropical
2. Temperate
3. Coral Reef
4. Hot Desert
Temperate climate
This happens when not enough rain falls for a long period of time
Drought
Which direction is the wind coming from in this image?
West
This is a measure of the amount of water vapor in the air
Humidity
The warmest temperatures are near the ___________ of Earth
(Hint: The imaginary line around the Earth)
Equator
This tool is used to measure the speed of the wind
anemometer
This is the process of water vapor turning back into liquid water
condensation

John recorded the humidity for give days. Which day had the most water in the air.
Thursday