Oceans

Ocean Movements

100

What are moving ridges on the top of the ocean?

A. Currents

B. Waves

C. Tides

D. Rays

B. Waves

200

What causes tides?

A. wind

B. salinity

C. the gravitational pull of the moon

D. temperature

C. the gravitational pull of the moon

300

________ are streams of water that flow continuously through the ocean.

A. Currents

B. Waves

C. Tides

A. Currents

400

If I built a sandcastle, and the next day it was no longer there, which of the following would have most likely caused it?

A. Wind

B. Currents

C. Waves

D. Tides

D. Tides

500

What are the three causes of currents?

Temperature, Salinity, and Wind

Ocean Features

100

What part of the ocean do most animals live?

A. Trench

B. Abyssal Plain

C. Continental Shelf

D. Seamount

C. Continental Shelf

200

Name 2 things that happen as you go deeper into the ocean.

Darker, colder, more pressure

300

Which part of the ocean floor is the deepest?

Trench

400

Which part of the ocean has the highest salinity?

A. Continental Shelf

B. Trench

C. Abyssal Plain

D. Midocean Ridge

B. Trench

500

Which of these is NOT true about the ocean floor?

A. Some parts are shallow, while other parts are deep

B. Much of the ocean floor is rocky

C. Some parts are very flat, while other parts are sloped

D. Nothing can live on the ocean floor

D. Nothing can live on the ocean floor

Ocean Food Webs

100

Which type of plankton is a producer in ocean food chains?

Phytoplankton

200

Which of the following are consumers in an ocean food chain?

A. Lobster

B. Algae

C. Seaweed

D. Phytoplankton

A. Lobster

300

algae -> zooplankton -> krill -> salmon -> orca

Use the food chain to help you answer. What would happen if there were no krill?

Salmon would have less to eat and populations will be smaller. Zooplankton would have less predators, possibly leading to overpopulation.

400

Which of the following might be a top predator in an ocean ecosystem?

A. Krill

B. Zooplankton

C. Shark

D. Seaweed

C. Shark

500

Create a food chain with the following animals. Make sure your arrows are going in the right direction!

Shark, Phytoplankton, Clownfish, Sponge

Phytoplankton -> Sponge -> Clownfish -> Shark

Ocean Misc.

100

What is salinity?

amount of salt

200

Which two animals live on the ocean floor?

A. Algae and Plankton

B. Clownfish and Shark

C. Jellyfish and Dolphins

D. Coral and Shrimp

D. Coral and Shrimp

300

Which current is in the Atlantic Ocean traveling past the east coast of the United States?

A. Gulf Stream Current

B. Python Current

C. Atlantic Current

D. United States Current

A. Gulf Stream Current

400

How do changes in salinity affect ocean organisms?

A. They make the water clearer

B. The change the amount of dissolved gases in the water

C. They can impact the survival and health of marine organisms

D. They change the depth of the ocean

C. They can impact the survival and health of marine organisms

500

Which is true about ocean water?

A. It has the same salinity everywhere

B. As depth increases, the temperature of the water increases

C. It is a mix of gases, water, and dissolved solids

D. Ocean water cannot evaporate

C. It is a mix of gases, water, and dissolved solids