Oceans Unit Review

A fourth grade class was determined to help the environment. As a class project, the students met one Saturday afternoon to perform a service project for the community.  Their project was to put stickers on the storm drains in their neighborhoods explaining that the water drains into the Chesapeake Bay.

How does placing these stickers on the storm drains help the environment?

• 1. People will know that when they throw their pet waste into the drains then it will be properly thrown away

• 1. People will know that when they dump their car oil into the drains that it will be thrown away properly

• 1. People will know that the waste that ends up in the storm drains will eventually end up polluting the Chesapeake Bay because it was not thrown away properly.

• 1. People will know to fertilize their yards right before the rain storm so that the extra fertilizer will drain into the Chesapeake Bay and will be thrown away properly.

Tags

NGSS.MS-ESS3-3

The ocean floor______

• 1. is always a flat bed of sand

• 2. has mountains, plains, and ridges like land surfaces

• 3. is covered by the same amount of water everywhere

• 1. covers less area than the land

Tags

NGSS.MS-ESS2-3

Which of the following definitions correctly describes letter C in the diagram above?

• The gently sloping area of a continent covered by ocean water

• The true ocean floor that has a flat, smooth surface 

• The area where the continent ends and the ocean floor begins

• The steep slope down to the ocean floor

  
  

Label all parts of the ocean floor correctly.

a

b

c

d

e

f

g

Seamount

Continental Rise

Mid Atlantic Ridge

Continental Slope

Continental Shelf

Trench

Abyssal Plain

Ocean water contains dissolved _____________, measure as salinity.

Which of the following impact the salinity of water?

• 1. How quickly water evaporates.

• 1. The depth of the water.

• 1. The condensation of water.

• Amount of runoff water.

• 1. Melting icebergs.

Label the diagram.

a

b

Warmer

Colder

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

As oceans become deeper, the water pressure ___________________.

• increases
• decreases
• stays the same

What is the purpose of a dichotomous key?

• to find a common ancestor
• to show the evolution of organisms
• to show relationships between organisms
• to identify organisms

Use the dichotomous key to classify this organism!