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Hydrosphere - Tides & Ocean currents

Total questions: 10

Worksheet time: 5mins

Name
Class
Date
1.

The circular Gyres of the oceans caused by Earth’s rotation is called

a)

Rip currents

b)

The Coriolis effect

c)

Gyres

d)

Global conveyor belt

2.

What percentage of the earth is covered by water?

a)

71

b)

97

c)

3

d)

29

3.

What affects the density of ocean water?

a)

Ocean depth and gyres

b)

Salinity and temperature

c)

Temperature and ocean animal type

d)

Ocean depth and temperature

4.

What is the type of tidal cycle with two high tides and one low tide?

a)

Diurnal

b)

Mixed patter

c)

Corona

d)

Semi-diurnal

5.

The connected system of currents in the ocean that takes 100 years to make a complete cycle is?

a)

Ocean escalator belt

b)

Global ocean conveyor belt

c)

Spring tide

d)

High tide

6.

What causes surface currents?

a)

Winds

b)

Salinity differences

c)

Temperature differences

d)

Coriolis effect

7.

Because of the Coriolis effect currents in the southern Hemisphere travel in what direction.

a)

Clockwise

b)

Up

c)

Counterclockwise

d)

Down

8.

What has the biggest effect on ocean waters?

a)

The Sun

b)

The Moon

c)

The Earth

d)

The Atmosphere

9.

What tide has the largest tidal range?

a)

Spring tide

b)

Neap tide

c)

High tide

d)

Low tide

10.

When does density of ocean water increase?

a)

When water gets warmer

b)

When water gets colder

c)

When water is less salty

d)

When water evaporates