Earth's Tides

Front

What causes tides?

Back

The gravitational pull of the moon on the water at Earth’s surface.

Front

Why is the timing of tides predictable?

Back

Because the moon’s path is predictable.

Front

What is the tidal range?

Back

The difference between high tide and low tide levels.

Front

What is a Spring Tide?

Back

The largest daily tidal range made even higher by the alignment of the sun, moon, and Earth.

Front

What is a Neap Tide?

Back

A tide with the smallest daily tidal range, occurring when the sun and moon are at right angles to each other.

Front

What role does the Sun play in tides?

Back

The Sun's gravitational pull also affects tides, but to a lesser extent than the Moon.

Front

What is the difference between high tide and low tide?

Back

High tide is when the water level is at its highest, while low tide is when the water level is at its lowest.

Front

How often do tides occur?

Back

Tides typically occur twice a day, with two high tides and two low tides.

Front

What is the effect of the Moon's position on tides?

Back

The Moon's position relative to Earth affects the height and timing of tides.

Front

What is the gravitational force?

Back

A force that attracts two bodies towards each other, such as the Earth and the Moon.