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Waves are made by the wind blowing across the water.

Waves are made by the wind blowing across the water.

When wind pushes on the sea, it makes the water rise and roll. That rolling water becomes the waves that splash onto the beach.

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More facts about At the Beach

Sand is made of tiny bits of rock and shell worn down by the sea. Sand is made of tiny bits of rock and shell worn down by the sea. A sandcastle holds together better when the sand is a little wet. A sandcastle holds together better when the sand is a little wet. Seashells were once the homes of small sea animals. Seashells were once the homes of small sea animals. Crabs can walk sideways along the beach. Crabs can walk sideways along the beach. The longest beach in the world stretches for more than 200 kilometres. The longest beach in the world stretches for more than 200 kilometres.