Aquatic Ecosystems

Lakes are larger and deeper than ponds. This statement is:

• True

• False

Which aquatic ecosystem is found where the freshwater rivers meet the ocean?

• ocean

• estuary

• lake

• pond

The mixture of saltwater and freshwater in an estuary is called __________________ water.

• brackish

• semi-salty

• partially-salty

• sorta-salty

Pond/Lake Plants

• mangrove, sea rush, oioi, jointed rush

• water lilies, algae, cattails

• mallard duck, crayfish, snapping turtle

• coralline algae, phytoplankton

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Which of the following best describes turtles, algae, fish and beavers?

• Biotic factors found in lakes and ponds

• Abiotic factors found in lakes and ponds

• Biotic factors found in grasslands

• Abiotic factors found in forests

Swamps, marshes, and rivers are all examples of ____________ ecosystems.

• Saltwater

• Oceans

• Freshwater

• Tropical Rainforest

Why do most aquatic plants live near the edge of a pond or float on its surface?

• for water and sunlight

• for fish and humans

• for frogs homes and food

• cleans bacteria and swimming

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

NGSS.MS-LS2-1

Which aquatic ecosystem does this picture show?

• River

• Swamp

• Pond

• Stream

What does "aquatic" mean?

• Land

• Water

• Plants

• Animals

How are aquatic and terrestrial ecosystems different?

• Aquatic has animals

• Aquatic is water, terrestrial is land

• Terrestrial has trees

• Terrestrial is water, aquatic is land