What is water?
Q: What is water?
A: Water (H2O) is a transparent, tasteless, odourless, and almost colourless chemical substance.
Q: How much of Earth's surface does it cover?
A: Water covers over 70% of Earth's surface.
Q: What type of precipitation falls from clouds in the sky?
A: Precipitation that falls from clouds in the sky may be rain (liquid) if it is warm, or frozen if it is cold.
Q: At what temperature does water freeze?
A: If water gets very cold (below 0°C (32°F)), it freezes and becomes ice.
Q: At what temperature does water boil?
A: If water gets very hot (above 100°C (212°F)), it boils and becomes steam or water vapor.
Q: How is water moved around on Earth?
A: Water is moved around in the water cycle.
Q: Why is water essential for life?
A: No known life can live without it; therefore, water is essential for life.
