The Water Cycle for Kids: Evaporation, Condensation & Rain

The water cycle for kids: The water cycle is how water moves around Earth in a never-ending loop. Water evaporates from oceans and lakes into the air, forms clouds through condensation, falls back as rain or snow (precipitation), and collects in rivers and oceans to start again. The water on Earth today is the same water that existed when dinosaurs were alive!

Introduction

Every drop of water on our planet is part of a giant recycling system. The water in your glass might have once been in a cloud, a river, or even inside a dinosaur! The water cycle has been running for billions of years and it never stops.

Let's follow a water drop on its amazing journey!

The 4 Steps of the Water Cycle

• Evaporation: The sun heats water in oceans, lakes, and rivers, turning it into invisible water vapor that rises into the air
• Condensation: As water vapor rises and cools, it turns back into tiny water droplets that form clouds
• Precipitation: When clouds get heavy with water droplets, the water falls as rain, snow, sleet, or hail
• Collection: Water flows into rivers, lakes, and oceans, or soaks into the ground — and the cycle starts again!

Why Does the Water Cycle Matter?

Without the water cycle, there would be no rain, no rivers, and no fresh water to drink! The water cycle keeps all life on Earth alive. It waters plants, fills lakes, and creates the weather we experience every day.

The sun is the engine that drives the water cycle. It provides the energy to evaporate water from the surface. That's why the water cycle is faster in hot, sunny places and slower in cold, dark places.

Try This!

See the water cycle in action! Put some water in a zip-lock bag and tape it to a sunny window. Over a few hours, you'll see water droplets form on the inside of the bag — that's evaporation and condensation happening right before your eyes!

Cool Facts

• Earth has the same amount of water today as it did 4.5 billion years ago
• About 97% of Earth's water is salt water — only 3% is fresh water
• A water drop spends an average of 9 days in the atmosphere before falling as rain
• Plants also add water to the air through their leaves — this is called transpiration
• The sun evaporates about 1 trillion tons of water from the oceans every day!

Did You Know?

• The water you drink today could have been drunk by a dinosaur millions of years ago!
• A single tree can release up to 400 liters of water vapor per day through its leaves
• It takes about 1 million tiny cloud droplets to make one raindrop

Wrap Up

The water cycle is one of the most important processes on our planet. It connects the oceans, the sky, the land, and all living things. Next time it rains, remember — that water has been on an incredible journey and will continue traveling long after the rain stops!