Water

📖 In short

Water is the most common substance on Earth, covering most of its surface and filling the seas, rivers and lakes; it's underground, in the air and in our bodies. There's no life without water. God says: ﴿وجعلنا من الماء كل شيء حي﴾

🤩 Did you know?

Water boils at 100 degrees and freezes at zero degrees.
Water expands and takes up more space when it cools below 4 degrees.
More than half your body weight is water.
Your body needs water every day, especially in hot weather and when you play.

🔎 Find out more

🌟 Three states

Water is liquid in rivers, solid in snow and ice, and a gas in water vapor. If you heat it, it evaporates, and if you cool it, it freezes.

🔍 The water cycle

The Sun warms sea water, which evaporates and rises into the sky, then cools and condenses into clouds, then falls as rain or snow and flows in rivers back to the sea. So water goes round and round forever.

💡 Ice floats

Most things shrink when they cool, but water expands when it freezes, so ice floats on water. This protects fish in frozen lakes, which keep living in the water under the ice.