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Unicus Olympiad Exams

What is the Water Cycle?

  • The water cycle is the journey that water takes as it moves around our planet.
  • It goes from the ground to the sky and then back again.
  • There are important parts of this cycle: evaporation, condensation, and precipitation.
  • Evaporation happens when the sun heats water from rivers, lakes, and oceans, turning it into vapor in the air.
  • Condensation happens when the water vapor cools down and forms clouds.
  • Precipitation is when water falls back to the ground as rain, snow, or hail!

Examples:

  • A puddle on the ground gets smaller on a sunny day because the water is evaporating into the air.
  • When you see dark clouds in the sky, that is condensation, and it might rain soon!
  • After it rains, the water soaks into the ground or flows into rivers, starting the cycle again.

Fun Fact: The water you drink today might have been in a dinosaur's stomach a long time ago! Water has been around for millions of years and keeps moving through the cycle.

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