An iceberg is a big chunk of ice that floats in the water, like an ice mountain. It's a bit like the ice cubes you use to cool your drink, but way, way bigger!

Icebergs are made from frozen freshwater. They usually start forming when snow falls on land, like on a big icy mountain or a glacier. Over time, the weight of the snow compresses it and turns it into solid ice.

Sometimes, pieces of these icy mountains break off or "calve" into the water. When this happens, they become icebergs. It's like a big piece of ice saying goodbye to the land and going on an adventure in the ocean!

Icebergs can be very large, but what you see above the water is only a small part. Most of the iceberg is hidden beneath the surface. It's like an icy iceberg mountain with a small tip sticking out of the water.

Icebergs can be dangerous for ships because they can be hard to see and they can damage the ship's hull if they collide. So, sailors and captains need to be careful and watch out for icebergs when they're traveling in icy waters.

So, an iceberg is a big chunk of ice that floats in the water, made from frozen freshwater. It forms when parts of icy mountains or glaciers break off and become giant floating ice mountains in the ocean!