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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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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Differentiate between clean and contaminated water.

Clean water is clear and does not contain harmful substances/organisms. Contaminated water contains pollutants or germs.

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Give one way that we can separate dirt from water.

Filtering, Straining, Settling and decanting, Distillation.

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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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Why do we need clean water?

Our bodies need water to stay hydrated. Water is used to breakdown food and to flush put waste products from our body. Drinking or washing with dirty water can

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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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What are some threats to wetlands? Name any 2.

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

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Why do so many people die from Cholera in Africa?

Many communities do not have access to clean drinking water (their water sources are contaminated with human waste), they also do not have access to healthcare.

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Identify where municipalities clean our water.

Water treatment plants.

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Give an example of a wetland habitat.

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

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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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