| Term | Definition |
|---|
| what is water vapor? | the gaseous state of water |
| Where is water vapor? | Most water vapor is in the air. It is invisible. |
| what does a water molecule look like? | H2O |
| What happens when a wet object gets dry? | Water evaporates,which means it changes from liquid to gas[water vapor]. The water vapor leaves the wet object and moves into the air. When most of the water has evaporated, the object is dry. |
| What causes eveporation? | Water molecules at the surface of a mass of water get hit hard enough byother water molecules. Theybreak free from the mass and move as individual molecuels in the air. |
| why does warm water evaporate faster than cold water? | The molecules move faster in warm water than in cold, Therefore they hit harder, causeing more surface molecules to break free into the air. |
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