Posted: March 28th, 2023
Year 8 Geography
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Atmosphere
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The gas around the earth.
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Climate
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The average weather conditions of a place over a long period of time.
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Weather
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The day-to-day condition of the atmosphere.
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Water Cycle
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The never-ending movement of water between the sea,the land and the air.
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Reservoir
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An artificial lake used to store water.
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Relief Rain
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Caused when air is forced to rise over hills and mountains.
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Precipitation
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Water in any form which falls to earth.
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Geography
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The study of the earth's natural features and its people.
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Ground Water
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Fresh water stored in rocks and the soil.
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Meteorology
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The study of weather and what causes it.
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Landforms
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Natural features formed by river, the sea, ice and volcanoes.
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Ecosystem
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A community of plants and animals that live together in the environment.
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Evaporation
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The process by which liquid water changes to water vapour when it is warmed.
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Temperature
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A measure of how warm or cold it is.
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Transpiration
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The process by which water from plants changes into water vapour.
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Grid square
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A square on map representing an area on the ground.
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Isobar
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A line on a map joining places with the same atmospheric pressure.
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Hurricane
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A severe storm that develops over tropical oceans and whose strong winds of more than 120 km/h spiral in toward the intensely low-pressure storm center
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Climate zones
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Polar, Temperate, Tropical.
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Latitude lines
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Lines that run east to west and are parallel to the Equator.
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Longitude lines
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Imaginary north-south lines that run vertically around the globe parallel to the Prime Meridian.
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Air Pressure
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The amount of air pressing on the earth's surface.
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Low Air Pressure
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clouds, precipitation, and other turbulent weather, such as tropical storms and cyclones.
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High Air Pressure
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Pleasant weather conditions. eg sunshine and clear skies.
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Low Air Pressure
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Reading below 1013 mb on a barometer.
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High Air Pressure
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Reading 1013mb and above on a barometer.
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Emergent Layer
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The tallest layer of the rain forest that receives the most sunlight.
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Forest floor / shrub layer
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The lowest level of the rainforest, containing herbaceous plants, fungi, leaf litter, and soil.
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Understory layer
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The layer of the rainforest between the canopy and rainforest floor. It receives little light.
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Canopy layer
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Layer where trees grow close together, blocks most of sunlight and keeps moisture from evaporating
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Biome
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A group of ecosystems with similar climates and organisms.
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Saffir-Simpson Scale
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Classifies hurricanes according to air pressure in the center, wind speed, and property damage potential on a scale ranging from Category 1 to Category 5.
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Rainforest
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An area of lush vegetation and year-round rainfall.
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Coastal Landforms
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Large features within a coastal area formed by processes such as erosion and deposition.
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Coast
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Where the land meets the sea.
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