A biological community of interacting organisms and their physical environment
Key living and non-living components of an ecosystem
Animals
Plants
Insects
Bacteria
Rocks
Soil
Water
Sunlight
Biomes
A large naturally occurring community of flora and fauna occupying a major habitat, e.g. forest or tundra
Rainforests
Regions with high annual rainfall of over 1,800 mm (70 inches) and a hot and steamy climate
Equatorial climate
Warm and wet, as tropical rainforests are located on or close to the Equator
Vegetation in the tropical rainforest
Has adapted to thrive in its hot, wet climate in various ways
Climate
Comprises many day-to-day values of the weather affecting a particular place
Factors affecting climate
Altitude
Winds
Distance from sea
Aspect
Latitude
Temperate climate
Cool, wet winters and warm, wet summers in the UK
The west tends to be cooler and wetter than the east, the north cooler than the south. Temperatures decrease with altitude
Why it rains
Water droplets in a cloud condense and combine, becoming heavier until they fall to the ground
Anticyclone
A large-scale circulation of winds around a central region of high atmospheric pressure, clockwise in the Northern Hemisphere and counterclockwise in the southern hemisphere
Weather
The state of the atmosphere, describing for example the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy