NEW
Font size
S
M
L
XL
WorksheetsWater Ecosystems
Total questions: 14
Worksheet time: 7mins
Name
Class
Date
1.
A saltwater ecosystem where breaking waves provide oxygen and nutrients is the ____________________.
a)
Inter-tidal Zone
b)
Near-shore Zone
c)
Deciduous Forest
d)
Estuary
2.
Name 2 plants or animals that can be found in freshwater ecosystems only.
a)
Sharks & Oysters
b)
Crabs & Starfish
c)
Whales & Plankton
d)
Ducks & Crawfish
3.
A brackish water ecosystem:
a)
Has many pollutants
b)
Is always above 70 degrees
c)
Is salt and freshwater mixed
d)
Has few currents and the water barely moves
4.
Which two bodies of water are saltwater?
a)
Oceans & Lakes
b)
Oceans & Seas
c)
Ponds & Streams
d)
All of the above
5.
A saltwater ecosystem with very deep water is the ___________________.
a)
Inter-tidal Zone
b)
Open-ocean Zone
c)
Near-shore Zone
d)
Estuary
6.
An _________ is were a freshwater river empties into the ocean.
a)
Open-Ocean Zone
b)
Estuary
c)
Sea
d)
None of the above
7.
List the 3 ocean zones from shallowest to deepest.
a)
Inter-tidal Zone, Near-shore Zone, & Open-Ocean Zone
b)
Open-ocean Zone, Inter-tidal Zone, & Near-shore Zone
c)
Near-shore Zone, Inter-tidal Zone, & Open-Ocean Zone
d)
Mrs. Cole :)
8.
Name the 3 types of water ecosystems.
a)
Saltwater, estuary, & freshwater
b)
Saltwater, freshwater, & regular water
c)
Drinking water, bathing water, & cooking water
d)
Freshwater, Brackish water, & Salt water
9.
Why aren't plants able to survive below a depth of 200 meters?
a)
It is too cold down there
b)
There is no sunlight at that depth
c)
The plants cannot anchor themselves in the shifting sands.
d)
The water pressure is too great
10.
True or false: An estuary changes from salt to freshwater as tides rise and fall.
a)
True
b)
False
11.
A Saltwater ecosystem with calm waters; where most nutrients are provided by rivers is the ___________________
a)
Near-shore Zone
b)
Open-ocean Zone
c)
Inter-tidal Zone
d)
Estuaries
12.
Why would freshwater plants and animals prefer to live in a calm lake or pond instead of a fast moving stream or river?
a)
They cannot survive in fast moving waters
b)
The fast moving water is salty
c)
The plants and animals have a hard time anchoring themselves in the shifting waters
d)
All of the above
13.
The water in an estuary:
a)
Contains few nutrients
b)
Changes from saltwater to freshwater as tides rise and fall
c)
Is often hundreds of meters deep
d)
Is generally too changeable to support very many living things
14.
Which of the following bodies of water is not freshwater?
a)
Lake
b)
Pond
c)
Stream
d)
Sea
Reset
