Open and Closed Lakes: Watery Worlds!
Images

Postcard: Okanagan Lake Bridge, Kelowna, BC, c.1960











Key Facts
Where Does the Water Go?
Imagine a giant bathtub! Some bathtubs have a drain that lets all the water flow out to the sink, and then to the ocean. These are like 'open lakes.' The water in them flows into rivers and streams that eventually reach the big, salty sea.
Other bathtubs don't have a drain! The water stays inside, and it slowly disappears because of the sun's heat, like magic. These are 'closed lakes.' The water in them can only leave by evaporating into the air or soaking into the ground.
The Secret Keepers!
Closed lakes are like nature's secret keepers. They hold onto their water because they don't have a way to drain out to the ocean. Think of a big puddle after it rains.
If there's no low spot for the water to flow away, it just sits there. The sun shines on it, and the water slowly turns into vapor and floats up into the sky. This is how closed lakes lose their water.
It's a slow process, and sometimes these lakes can get very salty over time because the water evaporates, but the salt stays behind!
The Flowing Friends!
Open lakes are like the busy highways of the water world. Their water is always on the move! It starts in the lake and then flows out into a river.
That river might join an even bigger river, and guess where they all end up? The ocean! It’s like a water adventure.
These lakes are important because they help move water all around the land, giving life to plants and animals along the way. They are part of a big system that connects everything.
Why Lakes Matter!
Whether a lake is open or closed, it's super important for our planet. Lakes are homes for fish, birds, and lots of other amazing creatures. They also give us water to drink and use for growing food.
Some closed lakes can become very salty, like the Great Salt Lake, and they are special places for certain kinds of plants and animals that can live in salty water. Open lakes help keep the land wet and green by feeding rivers that flow through different places.
Based on content from Wikipedia · Licensed under CC BY-SA 4.0
