1. Water exists in three forms – liquid, solid, and gas.
2. The liquid form of water is what we drink, and it's found in rivers, lakes, and rain.
3. The solid form of water is ice or snow, which forms when water freezes.
4. The gaseous form is called water vapor or steam, formed when water is heated.
5. Boiling water turns it into steam (gas).
6. Freezing water turns it into ice (solid).
7. Water vapor is invisible and present in the air.
8. Clouds are made up of tiny water droplets or ice crystals.
9. Water changes its form in nature through the water cycle: evaporation, condensation, and precipitation.
10. These changes are reversible – ice melts into water, and steam condenses back into water.
Why does ice float on water instead of sinking?
What makes water a universal solvent, and what are its implications in chemistry and biology?
How do deep-sea creatures survive under extreme water pressure?
What causes ocean currents, and how do they affect global climate?