Weather Flashcards
What is weather?
It is what the atmosphere or air is like a a particular time.
What are the 5 areas we look at to measure weather?
Temperature, cloud cover, wind direction, wind speed, precipitation
What is temperature?
How hot or cold the air is
How do you measure temperature?
With a thermometer.
What is wind?
Movement of air, can move up and down in a circle and across the land
How can you describe or measure wind?
It is how strong or fast it is, and the direction it is blowing from.
How do you measure wind?
With a special instrument called an anemometer.
What are the type of wind for 5 km/h, 6 - 9 km/h, 20-39 km/h, 40 - 61 km/h, 62 - 87 km/h, 88 - 118 km/h, 119 km/h
calm, light breeze, breeze, strong wind, gale, storm, hurricane
How do you measure the direction of wind?
You measure wind direction by the direction the wind is coming from.
What are the 8 compass points?
N, NE, E, SE, S, SW, W, NW
How do you measure wind direction?
Wind vane or a wind sock
What is cloud cover?
It describes how much of the sky is covered by cloud
What is precipitation?
Rain, snow, hail and other forms of water that fall to the group.
Rain = water falls in droplets
Hail = water falls as frozen raindrops during a thunderstorm
Snow =water falls as frozen ice
When rain falls only for a short time and there are heavy drops of rain, what is it called?
A shower
When rain falls for a long time and the drops are light, it is called …….
A drizzle
How do you measure rain? It is recorded in which measurement?
A rain gauge. In millimeters (mm)
How does weather affect people?
What they wear (hot/cold), what they do and even whether they are safe or in danger.
Who in South Africa measures the weather?
South African Weather Service
How does the SA weather service collect their information to measure weather?
From various places in the country, also aeroplanes and ships at sea, even from space. This helps them to know what the weather is like and how it is changing.
Where can you read about what the weather is going to be?
Internet weather sites, TV, newspaper, radio, weather reports, also find forecasts for the next 3 , 7 or 14 days
How do they show weather on a map?
With symbols
What does climate describe?
It describes what the weather is usually like over a large area at a certain time of year, e.g. May to August are Winter months in South Africa. Rainfall also changes per season in the different provinces.
South Africa’s weather is mostly …..
very dry compared to many countries in the world. Its rainfall is unevenly distributed, which means more rain falls in some areas than others.
