Science: Test 8

A knowledge of ________ helps make sea travel quicker.

seawater is dense because it contains ______

This fish is unique because it always leaves the ocean and returns to the stream where it was born to lay its eggs.

at the bottom of the ocean

This fish is caught for its meat and for the oil in its liver, which is high in vitamins A and D.

This kind of whale was hunted for its oil and ambergris.

Ocean currents are moved primarily by _______.

seawater freezes at _____

The largest animal that has ever lived is the _________?

This fish has huge winglike fins which make it appear to fly through the water.

This fish is a man-eater.

waves are caused by _______?

contains underwater volcanoes

contains long mountain ranges called oceanic ridges

along the edges of the continents

contains flourishing plant life

This invertebrate has the largest brain and is thought to be the most intelligent invertebrate.

the study of the sea or ocean

This fish is the largest fish of all.

shallow water

Fish are able to get oxygen from the water with their ______?

has deep trenches at its base

contains rich oil fields

made primarily of mud and sand deposited by rivers as they empty into the ocean

Who used messages in bottles to help perform his experiments?

contains almost all the fish that are caught to be sold for food

the deepest spot in the ocean