Air
Define temperature
How hot or cold something is
What is a rain gauge used for?
To measure the amount of precipitation a place gets.
This severe weather is characterized by long periods with little to no precipitation.
Droughts
What kind of clothing would you wear on a rainy day? How would those cloths help you? (list at least 3 things)
Rain jacket with hood, rain pants to keep you dry. Sweater to keep you warm. Rain boots to keep your feet dry.
Which type of cloud is called fog when it touches the ground?
Stratus
What is hail?
Small balls of ice that fall from the sky.
What do we call the movement of air across the Earths surface?
Wind
Which device measures the speed of the wind?
An anemometer
What is the middle of a hurricane called? What is the weather like there?
The eye. It is usually very calm.
This type of energy from the sun can cause cancer.
Ultraviolet rays (UV rays)
What are clouds made of?
Water droplets and/or ice crystals
What does precipitation mean?
Water that falls from the sky in any form - rain, snow, drizzle, hail, and more.
In what direction does air push?
In all directions
What kind of weather can we expect when the air pressure is high?
Clear, sunny days.
Which severe weather event is the largest and usually the most severe?
Hurricanes.
How does the ozone layer help humans?
It blocks harmful UV rays.
What does the word nimbus mean?
That that cloud is bringing some form of precipitation.
What is a weather forecast?
A prediction of what the weather will be in the near future.
What do we call the layer of air that surrounds the earth?
The atmosphere
This device uses radio waves to help us see and predict precipitation.
RADAR
List the 5 types of severe weather that we can get here in Saskatchewan.
Thunderstorm, drought, flood, tornado, blizzard.
List some jobs that depend on the weather. (List at least 3)
Various (Farmers, sailors, construction workers, gardeners/ grounds keepers, fishers, etc)
What does the prefix alto mean?
That the cloud is found at a medium height.
What does humidity mean?
The amount of water vapour that is in the air.
What happens to air particles when they heat up? How does this impact things like hot air balloons?
The particles spread out, becoming less dense, and rises. Hot air balloons use this principle to fly. The air in the balloon is heated up, becoming less dense than the air around it, and allowing the balloon to rise up into the air.
Where do most cities have their weather station?
At the airport.
What does a weather watch mean?
Severe weather could develop in your area.
What is windchill and how does it work?
Wind blows the warm air that surrounds your body away from you, making you feel colder.
Describe a cumulonimbus cloud.
Cumulonimbus clouds stretch from the lower atmosphere all the way to the upper atmosphere. They bring rain and severe weather like thunderstorms and tornadoes.
What is the study of weather called?
Meteorology
Why is Canada warmer in the summer, and colder in the winter?
In the summer, when the days are long, we get more energy from the sun, causing warmer temperatures. In the winter, when the days are short, we get less energy from the sun, resulting in cooler temperatures.
What causes the wind to blow? Where does the wind blow from and to?
Differences in temperature and air pressure. Air blows from high air pressure areas to low air pressure areas.
What does a weather warning mean?
Severe weather is happening or is about to happen.
How does weather affect crops? (at least 3 things)
Much of the food we eat relies on the right amount of sunlight and rain to grow. A late or rainy spring can delay planting, which affects the amount and quality of the crops that will grow. An early frost or snowfall can destroy the crops before they are harvested. Flooding can cause seeds or plants to rot.
What are the 3 main types of clouds we looked at in this unit? Describe each.
Cirrus - Wispy, in the upper atmosphere, made of ice crystals.
Cumulus - Puffy, low in the sky, like cartoon clouds.
Status - Stretch across the sky
What do we call a person who studies the weather?
A meteorologist