Investigando el agua: ¿donde está el agua?

The video discusses the importance of water in daily life, highlighting how we use it for washing, drinking, and cooking. It explains the sources of fresh water, such as lakes, rivers, and groundwater, and contrasts it with salt water found in oceans, which is not drinkable. The video emphasizes the abundance of water on Earth, mostly in the form of salt water.

How much of the Earth's surface is covered in water?

What is the difference between fresh water and salt water?