Blog educativo

La última actualización de esta entrada fue hecha el 27 junio, 2024 por Hernán R. Gómez

What’s the water?

Water is one of the most important substances on Earth. It covers about 71% of our planet’s surface and is essential for all forms of life. As kids, understanding why water is so important can help us appreciate its role in keeping us healthy, supporting wildlife, and even shaping our planet.

Firstly, water is crucial for our bodies. Did you know that our bodies are made up of about 60% water? We need water to stay hydrated, which means our bodies have enough water to work properly. Water helps us digest our food, transport nutrients around our bodies, and even regulate our temperature when we get hot or cold.

Secondly, water is vital for plants and animals too. Plants use water to grow and make their own food through a process called photosynthesis. Animals, from tiny insects to large elephants, also need water to drink to stay alive. Without water, plants and animals wouldn’t be able to survive.

Water also plays a big role in the weather and climate. When the sun heats up the water in oceans, lakes, and rivers, it evaporates and turns into water vapor in the air. This water vapor eventually cools down and forms clouds. When the clouds get heavy with water droplets, they release rain or snow, which is called precipitation. This cycle of evaporation, condensation, and precipitation is called the water cycle, and it helps keep our planet’s weather patterns balanced.

In addition to being essential for life, water is also important for fun and enjoyment. We use water for swimming, playing in the rain, and even making cool water games during hot summer days. Water is also used to grow fruits and vegetables that we eat, and it helps farmers grow crops to feed people and animals all around the world.

It’s important for us to take care of water and not waste it. Even though water seems like it’s everywhere, only a small percentage of it is actually freshwater that we can drink. We can help by turning off the tap when we brush our teeth, taking shorter showers, and not letting water run unnecessarily.

Freshwater, Saltwater, Pure Water and Drinkable water.

Let’s distinguish the terms Freshwater, Saltwater, Pure Water and Drinkable water.

1. Freshwater vs. Saltwater:
   • Freshwater: Water with a low concentration of dissolved salts, found in lakes, rivers, underground aquifers, and some ice caps.
   • Saltwater: Water with a high concentration of dissolved salts, especially sodium chloride (common salt), typical of oceans and seas.
2. Pure Water:
   • Pure water: Water that does not contain impurities or dissolved substances. In nature, it’s difficult to find completely pure water due to its tendency to dissolve minerals and gases from the environment.
3. Drinkable Water:
   • Drinkable water: Water that is safe for human consumption according to established quality standards set by health and regulatory authorities. It doesn’t necessarily need to be chemically pure but must be free from contaminants that pose a risk to human health.

The water cycle

Now, about the water cycle:

The water cycle describes the continuous movement of water on, above, and below the surface of the Earth. It involves processes such as evaporation, condensation, precipitation, runoff, and infiltration. Here are the main stages:

• Evaporation: Water from surfaces like oceans, rivers, and lakes is heated by solar energy and turns into water vapor.
• Condensation: Water vapor cools in the atmosphere and condenses into liquid water droplets, forming clouds.
• Precipitation: Water droplets in clouds grow and fall to the Earth as rain, snow, hail, etc.
• Runoff: Excess water on the Earth’s surface flows overland into bodies of water such as rivers, lakes, and oceans.
• Infiltration: Water seeps into the soil and moves downward to replenish groundwater reserves or enter streams through underground pathways.

Water is truly amazing and important for so many reasons. It keeps us healthy, supports plants and animals, affects our weather, and adds fun to our lives. By learning about water and taking care of it, we can make sure that it continues to be available for us, for animals, and for future generations to enjoy. So, let’s appreciate and protect our precious water!

These processes collectively ensure the recycling and distribution of Earth’s water resources.

You can read more about this topic in https://www.ensambledeideas.com/all-about-mixtures/