Living World 5 – Rainforest 1
●Watch the video below for a recap from this unit and a reminder what will be covered this week from Mr Littlejohns at HWA who is leading these lessons
Global Ecosystems and Rainforests
Large scale ecosystems are known as global ecosystems. Global ecosystems form broad belts across the world from west to east, parallel to the lines of latitude. The climate and characteristics of the ecosystems are determined by the global atmospheric circulation model. One of these such global ecosystems is the rainforest.
Study the map below and answer the questions
Attempt the questions and then click the arrow to check your answers. You may want to use an interactive map (Google Maps/Earth) or an atlas to help you
1) State which continents rainforests are found
2) Between which two lines of latitude are rainforests mainly found?
3) Name the rainforest located in South America
4) State 4 a countries in Africa that contain rainforests
- Africa, South and Central America, Asia, Australasia
- Tropic of Cancer and Tropic of Capricorn
- The Amazon
- Benin, Burkina Faso, Burundi, Central African Republic, Comoros, Congo, Cote d’Ivoire (Ivory Coast), Democratic Republic of Congo, Equatorial Guinea, Ethiopia, Gabon, Gambia, Guinea, Guinea-Bissau, Liberia, Mauritania, Mauritius, Mozambique, Niger, Nigeria, Rwanda, Senegal, Sao Tome and Principe, Seychelles, Sierra Leone, Somalia, Sudan, Tanzania, Togo, Uganda, Zambia, and Zimbabwe
Climate of the rainforest
As with all global ecosystems the rainforest has a distinct climate, all rainforests of the world will have a similar climate to each other. A climate graph allows you to interpret climate data for a location. Watch the video clip to recap climate graphs.
Task – Study the climate graph below and answer the questions.
Answer the questions, click th arrow to check your answers
1) Which month(s) has the highest recorded temperature?
2) Which month(s) has the lowest recorded temperature?
3) What is the range of temperature across the year?
4) Describe the pattern of temperature across the year
5) Which month has the highest recorded rainfall?
6) Which month has the lowest recorded rainfall?
7) Describe the pattern of rainfall across the year
- August and September
- 1.3℃ – Range = Highest value minus lowest value (28.2-26.9=1.3)
- The pattern of temperature shows that it remains consistent/steady over the year with little change. Each month it is in the high 20s.
- There is rainfall in every month. There is a drier period between June and November when less rainfall falls. In the other months the volume of rainfall is very high.
Why is the rainforest hot and wet?
The air above the Equator is very hot and rises, creating an area of low pressure. The Equator experiences high amounts of rainfall due to this rising air resulting in a warm and wet equatorial climate (eg the Amazon and Congo tropical rainforests).
The sun is overhead for most of the year therefore the temperature is high. Due to the angle of the earth the incoming solar radiation is more concentrated compared to the polar regions as it is over a smaller area. See the image below.
What is the structure of the rainforest like?
The rainforest consists of four 5 clear layers. Each layer has a number of key characteristics.
Task – Make simple copy/sketch the layers of the rainforest using the diagram below. Click the button to watch the video. Pause the video at each layer and annotate/label your diagram with key features/characteristics of each layer
1)Download the keywords and learn the definitions
2) Complete the revision and test from BBC Bitesize on rainforests using the button below
Some activities and images used have been resourced from GCSE Geography AQA -Simon Ross, Nicholas Rowles, David Holmes, Bob Digby. Published by Oxford.