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VOCABULARY
water that falls from the sky in the form of rain, snow, sleet, or hail
precipitation
Explain how wind forms
high pressure and low pressure meet
What do meteorologists do?
study weather & make forecasts
The weather patterns in a place over a long period of time
climate
strong winds, rain, rising sea level
1. provide one way to stay safe
hurricane
1. evacuate
Living things need this gas in order to breathe
oxygen
Name two tools that show wind direction patterns
wind vane, wind sock
Give 4 examples of seasonal weather patterns.
fall, winter, spring, summer
what the outside air is like at any one time and place
weather
destructive funnel clouds
1. provide one way to stay safe
tornado
1. go to a basement
What must happen for clouds to form?
Air cools and water vapor condenses
Explain the difference between seasonal weather patterns and climate.
climate: over long periods (years)
Give two examples of climate
tropical, temperate, dry, continental, polar
the layer of air that surrounds the Earth
atmosphere
electrical discharge
1. provide one way to stay safe
lightening
1. stay inside, away from tall objects (power lines, trees)
This gas makes up most of the atmosphere
Nitrogen
Why do engineers test their designs before using them?
to see if they are effective or if they need to be changed
VOCABULARY
a measure of the amount of water vapor in the air
humidity
the weight of air as it presses on objects below or within it
air pressure
1. rain and rising water
-provide a way to stay safe
2. dry conditions
-provide a way to stay safe
1. flood
-sand bags, move to higher ground
2. drought
-save water
VOCABULARY
to change from liquid to gas
evaporate
Why is it important to know wind patterns?
It helps us predict weather & keeps us safe.
How can engineers test designs that protect people from weather hazards?
identify problems that occur because of weather hazards; use this info. to design solutions; test and modify as needed (engineering design process)
the gas form of water
water vapor
1. wind, rain, and lightning
-provide one way to stay safe
2. heavy blinding snow
-provided one way to stay safe
1. thunderstorm
-stay inside
2. blizzard
-stay inside