The moon's pull of gravity on the Earth.

The position of the moon, neap tides, and spring tides.

Tides are daily changes in the level of the ocean water.

Both the sun and the moon influence the level of tides.

The moon's gravity pulls on every particle on Earth.

However, the moon's gravity doesn't pull on every particle with the same strength.

Low(top and bottom), high(left and right) tide, North Pole (middle), moon

It pulls the water, according to the position of the moon

Bulges that form in the oceans because of the moon's pull.

In high-tide areas, the water level is higher than average sea level.

In low-tide areas, the water level is lower than average sea level

High tides happen in different places on Earth at different times same with low tide.

The moon revolves slowly. High and Low tides take about 50 minutes before the next.

The moon's position and 24h. and 50min. rotation.

The sun and the moon affect the tides.

The sun's affect is much less then the moon's because the moon is closer.

Is the difference between levels of ocean water at high and low tide.

The largest daily tidal range are spring tides.

Happen when the sun, Earth and moon are aligned.

Happen during new or full moon phases.

Smallest daily range

Happen when the sun, Earth, and moon form a 90* angle

Happen during the first-quarter and third-quarter moon phases

Section vocabulary

A TIDE OF MINIMUM RANGE THAT OCCURS DURING THE 1ST AND 3RD QUARTER MOON

A TIDE OF INCREASED RANGE THAT OCCURS TWO TIMES A MONTH, AT THE NEW AND FULL MOONS

THE DIFFERENCE IN LEVELS OF OCEAN WATER AT HIGH AND LOW TIDE

THE PERIODIC RISE AND FALL OF THE WATER LEVEL IN THE OCEANS AND OTHER LARGE BODIES OF WATER