Intro to Tides

Tides

Let's learn about tides!

What are tides?

• Tides are the rise and fall of the levels of the ocean

• They are caused by the force of gravity of the Moon and Sun, also the earth's rotation, cause them.

The Cycle Of Tides

• Tides adjust as the moon rotates all-around Earth and the Suns' location

• The cycle is

• 1. The sea level begins to increase.

  2. The high tide has arrived.

  3. The sea level is falling.

  4. The tide hits its lowest point

• 5. It starts all over again

Types Of Tides

1. High Tides-The highest point of the tidal cycle is high tide when the sea level is at its highest.

2. Low Tides-Low tide occurs when the sea level is at its lowest point in the tidal cycle.

3. Spring Tides- The highest spring tide happens when the Sun and Moon are in perfect alignment.

5.Neap Tides- A neap tide is when the tidal range is at its smallest. This occurs during the first and third quarters of the Moon.

Multiple Choice

What is the difference between spring and neap tides

• Neap tides occur when the sea is at the highest level

• Spring tides occur when the earth and sun align.

• Spring tides occur when the sea is at the lowest level.

How the moon affects tides

The Moon is responsible for high and low tides. The tidal force is caused by the gravitational pull of the Moon. The tidal force causes Earth—and its water—to bulge out on its nearest and furthest sides from the Moon. These water bulges are high tides.

Tidal Range

• The tidal range is the height difference between high tide and low tide

• The tidal range is not constant: it varies based on the Moon's and Sun's positions.

Multiple Choice

What is Tidal range?

• The speed of a tidal current

• The time between each high tide

• The speed of the tidal current

• The difference in sea level between the low tide and high tide

Multiple Choice

The water bulges are ____ tides

• High

• low

• spring

• neap

Multiple Choice

What causes ocean tides?

• Energy from the sun's rays

• Wind moving across the surface area

• Gravitational pull of the Sun and the moon, and the rotation of Earth

• All of the above

• None of the above