WorksheetsE.1.2 - Oceans
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
The number one gas in the oceans is...
a)
nitrogen
b)
oxygen
c)
carbon dioxide
d)
chlorine
2.
The chemical formula for SALT is...
a)
NaCl
b)
NACL
c)
ClNa
d)
SaLt
3.
What is salinity?
a)
The amount of dissolved salt in the water.
b)
The amount of dissolved gases in the water.
c)
The amount of density the water has.
d)
The amount of water found in the salt.
4.
The Abyssal ecosystem is found where in the ocean?
a)
Ocean floor
b)
Open Ocean water
c)
Shoreline
d)
Underwater mountains
5.
What is an estuary?
a)
A little body of water.
b)
water in a gaseous form.
c)
Places where fresh water and streams flow into the ocean.
d)
the presence of an unwated msterial in a given place.
6.
What kind of water is in an estuary?
a)
Brackish
b)
spring
c)
salt
d)
fresh
7.
hydrothermal vents are located
a)
in coral reefs
b)
in the intertidal zone
c)
in kelp forests
d)
in the abyssal zone
8.
a floating layer of sea ice that completely covers an area of the ocean surface
a)
pack ice
b)
titanic
c)
ice fishing
d)
glaciers
9.
Plankton can be called “the foundation of life in the ocean” because they
a)
are marine organisms that need sunlight
b)
live in the upper 100 m of water
c)
form the base of complex food webs in the ocean
d)
are one of three main food sources in the ocean
10.
This type of ocean water dissolves gases most easily
a)
cold
b)
warm
c)
shallow
d)
salty
100 %
