Water Ecosystems

Name 2 plants or animals that can be found in freshwater ecosystems only.

• Sharks & Oysters
• Crabs & Starfish
• Whales & Plankton
• Ducks & Crawfish

Which two bodies of water are saltwater?

• Oceans & Lakes
• Oceans & Seas
• Ponds & Streams
• All of the above

Tags

NGSS.MS-ESS2-4

An _________ is were a freshwater river empties into the ocean.

• Open-Ocean Zone
• Estuary
• Sea
• None of the above

Name the 3 types of water ecosystems.

• Saltwater, estuary, & freshwater
• Saltwater, freshwater, & regular water
• Drinking water, bathing water, & cooking water
• Freshwater, Brackish water, & Salt water

True or false: An estuary changes from salt to freshwater as tides rise and fall.

• True
• False

Which of the following bodies of water is not freshwater?

• Lake
• Pond
• Stream
• Sea

The introduction of chemical, physical, or biological agents into the water.

• water pollution

• thermal pollution

• biomagnification

• artificial eutrophication

________ results in an increase of water temperature.

• water pollution

• thermal pollution

• biomagnification

• artificial eutrophication

Taking into account the image, People can explain that it is an ecosystem because presents

• Variety of biodiversity such animals, plants and organisms.

• No-living environments like weather, sun, water and climate.

• Wonderful and touristic places.

• Communities of living and no- living things that work together.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

The correct picture that represents aquatic ecosystem is 

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Tags

NGSS.MS-ESS2-4