In deze les zitten 21 slides, met interactieve quizzen, tekstslides en 1 video.
Lesduur is: 45 min
Onderdelen in deze les
§3.4: water: too much or too little
Slide 1 - Tekstslide
Today
Recap previous lesson
Explanation §3.4
Assignments workbook
Slide 2 - Tekstslide
Water
Slide 3 - Tekstslide
Explain in 5 steps how clouds are formed
timer
1:00
Slide 4 - Open vraag
The formation of clouds
Slide 5 - Tekstslide
The sun heats the ocean, the water from the ocean .. 1 .. . The air with .. 2 .. rises. As the air rises, it .. 3 .. . High up in the air, water vapour .. 4 .. to form clouds. If the drops of water become too heavy, it starts raining or snowing: this is .. 5 ...
timer
1:30
precipitation
condenses
evaporates
cools down
water vapor
1
2
3
4
5
Slide 6 - Sleepvraag
Where do you see:
Short water cycle
Long water cycle
Explain the difference
between:
Evaporation
Condensation
Precipitation
Infiltration
Slide 7 - Tekstslide
Today
Recap previous lesson
Explanation §3.4
Assignments workbook
Slide 8 - Tekstslide
Learning goals
You understand how relief rainfall, convectional rainfall and frontal rainfall are being formed
You can point out the regions with high and low precipitation on a map
Slide 9 - Tekstslide
Vocabulary
Precipitation
Neerslag
Convectional rainfall
Stijgingsregen
Relief rainfall
Stuwingsregen
Frontal rain
Frontale regen
Humid
Vochtig
Windward side
Loefzijde
Leeward side
Lijzijde
Descending air
Dalende lucht
Slide 10 - Tekstslide
Precipitation
Convectional rainfall: rain that forms when it is very hot and a lot of water evaporates and rises
Relief rainfall: rain that forms when air is blown against a mountain and is forced to rise
Frontal rainfall: rain formed because warm and cold air meet.
Precipitation always needs rising air!
Slide 11 - Tekstslide
1: Convectional rainfall (stijgingsregen)
Hot air rises
The higher the colder
The water vapor in the rising air condenses
Clouds are formed
Water droplets accumulate > precipitation
Slide 12 - Tekstslide
2: Relief rainfall (sturingsregen)
Air is blow against a mountain
The air is forced to rise
The air cools down and condenses > precipitation
Other side of the mountain: dry, descending air
Slide 13 - Tekstslide
Slide 14 - Tekstslide
3: Frontal rain
(frontale regen)
Warm air from low latitudes collides with cold air from polar regions
The warm air is forced to rise > precipitation
Slide 15 - Tekstslide
0
Slide 16 - Video
Match the concepts and the definitions by dragging the concept to the right definition
timer
1:00
Rain that forms when it is very hot and a lot of water evaporates and rises.
The process in which sea water evaporates and falls back into the sea through clouds and precipitation.
The process in which seawater evaporates and flows back to the sea through clouds, precipitation, groundwater and rivers.
Rain that forms when air is blown against a mountain and is forced to rise.
Rain that forms when two air masses meet and one air mass rises over the other
Relief rainfall
Convectional rainfall
Long water cycle
Short water cycle
Frontal rainfall
Slide 17 - Sleepvraag
An unequal distribution
Precipitation per year:
Tropics: 2000 mm
Desert: 250 mm
Slide 18 - Tekstslide
Learning goals
You understand how relief rainfall, convectional rainfall and frontal rainfall are being formed
You can point out the regions with high and low precipitation on a map