Unit 11 Test Review Science Fusion Grade 5

There are five different named oceans. Why do many scientists say there is one world ocean? 

• All of the oceans are in one area. 
• All ocean water makes up one body of water. 
• The scientists are wrong. 
• All ocean water are shared between everyone in the world. 

The underwater border of each continent is the 

• continental slope
• continental shelf
• continental rise
• oceanic trench

Why is a submersible needed when studying deep-ocean water? 

• The wave is too strong in deep-ocean water. 
• The water is too deep. 
• There are too many dangerous animals. 
• The water pressure is too high for humans. 

What ocean feature is closest to the beach? 

• abyssal plain
• continental slope
• continental shelf
• oceanic trench

What is a vast, flat area on the deep ocean floor called? 

• continental shelf
• continental rise
• coastal plain
• abyssal plain

Why is water cold in the deep ocean? 

• No sunlight reaches the water in the deep ocean. 
• There are less animals living in the deep ocean. 
• The water pressure is higher in the deep ocean. 
• There are less waves to heat up the water. 

How does a volcano become an island? 

• Two oceanic plates collide and create a volcano. 
• Each time the volcano erupts, more lava builds up until it is tall enough to poke out above the water. 
• The water level goes down each time a volcano erupts until the top of the volcano is above the water. 
• An explosive eruption shoots lava above the water that cools to form an island. 

What causes the tides? 

• Waves
• Currents
• A storm surge
• The position of the sun, moon, and Earth

What is an individual coral called the makes up coral reefs? 

• plankton
• squid
• polyp
• fish

What is the salinity of the water in an area where a fresh water river meets a salt water ocean? 

• Fresh water
• Slightly salty
• Very salty