How Do ‘Waves’ Shape the Coastline Over Time?

Waves are like playful kids on the beach, they come running, jump up and down, and keep shaping the sand over time.

Waves crash onto the shore, pushing water and sand forward. When a wave reaches the beach, it carries energy with it that can move pebbles, rocks, and even big chunks of land. This is called erosion, like when you dig in the sand with your hands and make a hole.

• When waves go back to the sea, they take some of the sand and rocks with them. This is called deposition, like when you throw sand out of your bucket after building a castle.
• Over time, this repeated action, crashing in, taking things away, then coming back, changes the shape of the beach. It can make cliffs taller or smoother, create new caves, or turn a flat shore into a wavy shoreline.

It’s like drawing with water and sand, every wave is a little brushstroke that helps paint the coast into something magical.