Water vapor — Science definition
Water in the normally invisible gas phase.
Where it is taught
- Evaporation, Condensation & a Wet Cold Cup — Phases of Matter, Physical Science: Matter, Forces & Energy, Grade 8
Questions using water vapor
Problem 1
Answer and explanation
The gas water vapor itself is normally invisible. The visible white cloud mainly consists of small condensed liquid droplets, and its appearance alone does not identify every particle present.
The gas water vapor itself is normally invisible. The visible white cloud mainly consists of small condensed liquid droplets, and its appearance alone does not identify every particle present.
Response criteria
- Use the supplied conditions and relevant evidence.
- Explain the scientific mechanism or calculation.
- State a meaningful limitation or testable next step.
Problem 2
Hints
Distinguish the observed quantities, the proposed mechanism and its conditions.
Answer and explanation
The gas water vapor itself is normally invisible. The visible white cloud mainly consists of small condensed liquid droplets, and its appearance alone does not identify every particle present.
The gas water vapor itself is normally invisible. The visible white cloud mainly consists of small condensed liquid droplets, and its appearance alone does not identify every particle present.