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Tide

Adapted from Wikipedia · Explorer experience

A peaceful view of Bangchuidao Island in Dalian, China, showcasing its natural beauty and tranquil seascape.

What Are Tides?

Tides are the regular rising and falling of sea levels. They happen because of the strong pull of the Moon and the Sun. This pull makes the water move up and down. The Earth spinning also helps make tides.

How Do Tides Work?

Tides are not the same everywhere. The shape of the ocean and the land around it changes how the water moves. Scientists use special tools called tide gauges to measure the water levels. They learn how tides work and predict when they will happen.

Tides have four main parts: low tide (the lowest point), the water rising, high tide (the highest point), and the water falling back down. Most places see two high tides and two low tides each day.

Fun Facts About Tides

Tides are not just in the oceans. Even the solid Earth moves a tiny bit because of the Moon and Sun, but this is very hard to notice.

Some places have very special tides. For example, the Bay of Fundy in Canada has very high tides because of its shape. Tides help many sea creatures live in areas that are sometimes underwater and sometimes dry land.

Tides have inspired many stories and traditions around the world. People use them to show change and the natural cycles of our planet.

Images

Diagram showing different terms used to describe tides in bodies of water.
Diagram showing how the Sun and Moon align during syzygy to affect tides on Earth.
Diagram showing how the position of the Moon affects ocean tides on Earth.
Diagram showing how the alignment of the Sun, Moon, and Earth during syzygy affects tides.
Diagram showing how the position of the Moon affects ocean tides on Earth.
Diagram showing how the Sun and Moon align during syzygy to create stronger tides.
A view of Ocean Beach in San Francisco during low tide, showing exposed sand and marine life.
A beautiful view of the Atlantic coast at low tide in Bar Harbor, Maine.
A colorful map showing how ocean tides move around the world, with lines indicating synchronized tidal timings.
An old map from 1546 showing ocean currents and compass directions in the Bay of Biscay.
A 16th-century diagram showing how tides change with the Moon's phases.
A view of Gorey Harbour in Jersey during low tide, showing the coastal landscape and calm waters.
A map showing different types of tides: diurnal, semidiurnal, and mixed.
The moon's pull causes tides to rise and fall in Maine, USA.

This article is a child-friendly adaptation of the Wikipedia article on Tide, available under CC BY-SA 4.0.

Images from Wikimedia Commons. Tap any image to view credits and license.