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Water and Carbon Cycles Portfolio Pages 281 - 285

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Water and Carbon Cycles Portfolio Pages 281 - 285

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Climate 101: Ozone Depletion | National Geographic

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The water cycle
Water on Earth is constantly moving. It is recycled over and over again. This recycling process is called the water cycle.
1. Water evaporates into the air

The sun heats up water on land, in rivers, lakes and seas and turns it into water vapour. The water vapour rises into the air.

2. Water vapour condenses into clouds

Water vapour in the air cools down and changes back into tiny drops of liquid water, forming clouds.

3. Water falls as precipitation

The clouds get heavy and water falls back to the ground in the form of rain or snow.

4. Water returns to the sea

Rain water runs over the land and collects in lakes or rivers, which take it back to the sea. The cycle starts all over again.

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Water on Earth is constantly moving. It is recycled over and over again. This recycling process is called the water cycle. The sun heats up water on land, in rivers, lakes and seas and turns it into water vapour. The water vapour rises into the air.

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The Water and Carbon Cycle Summary notes

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The Water and Carbon Cycle Summary notes

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Air and Water_Carbon Cycle and Water Cycle summary notes

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Climate Change 101 with Bill Nye | National Geographic

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Carbon is an essential element for life on Earth. Every living organism has carbon compounds inside each of its cells, such as fats and proteins. The carbon cycle shows how atoms of carbon can exist within different compounds at different times and be recycled between living organisms and the environment.

Processes in the carbon cycle

The is easiest to understand in terms of its processes and how carbon is converted. The three key processes and the conversions are shown in the table below.

1. Carbon enters the atmosphere as carbon dioxide from respiration and combustion.

2. Carbon dioxide is absorbed by producers to make glucose in photosynthesis.

3. Animals feed on the plant passing the carbon compounds along the food chain. Most of the carbon they consume is exhaled as carbon dioxide that was formed during aerobic respiration. The animals and plants eventually die.

4. Decomposers break down the dead organisms and return the carbon in their bodies to the atmosphere as carbon dioxide by respiration. In some conditions, decomposition is blocked. The plant and animal material may then be available as fossil fuel in the future for combustion.

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Material cycling in ecosystems - OCR Gateway - Revision 2 - GCSE Combined Science - BBC Bitesize

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Carbon is an essential element for life on Earth. Every living organism has carbon compounds inside each of its cells, such as fats and proteins. The carbon cycle shows how atoms of carbon can exist within different compounds at different times and be recycled between living organisms and the environment.