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Algae: tiny organisms that make the surface of still water green
Photosynthesis: is a science word for how plants make their own food.
Estuaries: A body of water that is connected to a river or stream

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Hydroelectric Power: Electricity that is created using water.

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Estuaries:A body of water that is connected to a river or stream
Aquatic: Another word for a thing that lives in the water
Crustaceans: crabs and shell fish

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The four types of freshwater ecosystems 

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The four types of freshwater ecosystems 

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- lakes
- ponds
- rivers
- streams

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Lake
- large bodies of fresh water that is surrounded by land

River and Stream
- moving bodies of fresh water that originate in mountains

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Lakes
- Lake Eerie
- Lake Baikal

Rivers and Streams
- Amazon river
- Mississippi river

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Find a picture of a freshwater ecosystem!

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Find a picture of a freshwater ecosystem!

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Why are plants important to this ecosystem?

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Why are plants important to this ecosystem?

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-They provide oxygen through photosynthesis
- They provide food for animals

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Plants that float
- Water lilies, algae and duckweed float

Plants on the shoreline
- Cat tails and reeds

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What types of animals live in the ecosystem? 

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What types of animals live in the ecosystem? 

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Land Animals
-birds, insects, amphibians,

Aquatic Animals
-fish, crustaceans

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-trouts eat insects and fish, and people fish and eat the trout too. Trout lives in rivers and lakes.

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Why are freshwater ecosystems important? 

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Why are freshwater ecosystems important? 

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-Freshwater is the type of water that humans are able to safely drink.
-We can use it for transportation (boats).

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How can we use this ecosystem to produce electricity?

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How can we use this ecosystem to produce electricity?

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-Water passes through a dam and then flows down into a lower river, and this flow creates electricity.

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What is a dam?
Dams can turn river water into electricity.

Why are they a good thing?
-They can produce electricity

Why are they a bad thing?
-They can damage the environment.

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Find a picture of a water turbine or a dam!

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Find a picture of a water turbine or a dam!