Pressure ridge (ice)

A pressure ridge is what happens when pieces of ice get pushed together by something like wind, currents, or other pieces of ice. When they get pushed together, they don't just sit flat next to each other like flat puzzle pieces. Instead, they get pushed up on top of each other, forming a big hill of ice.

Think of it like when you stack blocks on top of each other. If you stack them neatly, they stay in a straight line. But if you push them together, they might start to pile up and form a crooked tower.

This hill of ice is called a pressure ridge. It can be really big and really tall, and it can be pretty dangerous for people trying to travel across the ice. But it's an important part of how ice changes and moves, and it helps keep the environment healthy and balanced.