What is the gaseous, invisible form of water?

Study for the IB Marine Science Standard Level Exam. Prepare with interactive quizzes and in-depth explanations. Use our resources to excel in your marine science knowledge!

Multiple Choice

What is the gaseous, invisible form of water?

Explanation:
The concept here is that water exists in different states, and the gas state is water vapor. Water can be solid (ice), liquid (water), or gas (water vapor). Water vapor is invisible because it’s a gas that mixes with the air; you only see it when it condenses into droplets as steam or fog, or forms clouds when it cools. The other options aren’t gaseous water: wind is just moving air, rain is liquid water droplets, and ice is the solid form. So the gaseous, invisible form of water is water vapor.

The concept here is that water exists in different states, and the gas state is water vapor. Water can be solid (ice), liquid (water), or gas (water vapor). Water vapor is invisible because it’s a gas that mixes with the air; you only see it when it condenses into droplets as steam or fog, or forms clouds when it cools. The other options aren’t gaseous water: wind is just moving air, rain is liquid water droplets, and ice is the solid form. So the gaseous, invisible form of water is water vapor.

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