Grade 6 NS revision – T2 Module 5 + 6 | Baamboozle - Baamboozle

Define a wetland.

Wetlands are habitats that are wet for part of the year, or all year round. They have lots of aquatic plants and a high water table.

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Give one way that we can separate dirt from water.

Filtering, Straining, Settling and decanting, Distillation.

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How do wetlands naturally filter water?

Insoluble pollutants get trapped by the roots of aquatic plants, and soluble pollutants can be absorbed by the plants, removing them from the water.

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Explain 1 way that water pollution has economic consequences for a country.

It costs a lot of money to purify water. People get sick more often, governments need to spend more money on healthcare facilities and medicines.

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What are some threats to wetlands? Name any 2.

Climate change, drought, invasive species, habitat destruction, pollution.

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Describe the first two steps of the water treatment process.

(1) Screening: Removing obvious pollutants using a large screen/sieve. (2) Settling/Sedimentation: allowing water to stand so that heavy particles sink to the b

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lifesaver

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Give an example of a wetland habitat.

Marshes, floodplains, swamps, estuaries, lakes, pans, riverbanks.

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Give an example of a soluble and an insoluble pollutant.

Soluble: Chemicals like pesticides. Insoluble: Plastic, oil, living germs from human waste.

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What is a seasonal wetland?

A wetland that is wet for between 5-11 months of the year.

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What are 5 causes of water pollution?

Agriculture, Plastic pollution, Mining, Human Waste, Atmospheric water pollution.

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What are 2 ways that we can kill harmful microbes in water?

Boiling the water or adding chemicals (like chlorine/bleach).

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Identify where municipalities clean our water.

Water treatment plants.

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