THE MOVING SEA

THE MOVING SEA

The oceans and seas are constantly moving because of the TIDES, WAVES and CURRENTS.

What causes tides?

Tides are caused mainly by the pull of the Moon's gravity as it circles the Earth.

There are high tides and low tides.

TIDE

What is tide?

Tide is the rise and fall of the level of the oceans and seas.

It happens twice every day.

High Tide

High tide means the tide is in.

The level of the sea or oceans rises.

Water covers the shore.

Low Tide

Low tide means the tide has gone out.

The level of the seawater falls.

The shore is uncovered.

Multiple Choice

The level of the ocean rises four times a day.

• TRUE

• FALSE

Multiple Select

The oceans and seas move because of

• tides

• waves

• rocks

• currents

Multiple Choice

The seashore is uncovered when we say the tide ______

• is in

• is high

• has gone out

Multiple Select

During high tides, the level of the sea or ocean ______________

• rises

• falls

Multiple Select

Tides are mainly caused by the ________________ of the Moon's gravity as it circles the Earth.

• gravitational pull

• movement of the Sun