We gathered evidence for menthol's ability to change into all three states of matter through heating or cooling, so we did the same with water. With one exception. We opened the system and looked for evidence of a phase change beyond the limits of the flask.
Why are we doing this?
We're relating it back to our driving question of "How Can I Smell Things from a Distance?" Students are starting to ask some good questions as it relates back to the driving question.
"Does a substance have to go through a phase change to smell it?"
"Do we smell things better when they become a gas? Or do we smell things that are solids and liquids?"
Great thinking, 6th graders!
Why are we doing this?
We're relating it back to our driving question of "How Can I Smell Things from a Distance?" Students are starting to ask some good questions as it relates back to the driving question.
"Does a substance have to go through a phase change to smell it?"
"Do we smell things better when they become a gas? Or do we smell things that are solids and liquids?"
Great thinking, 6th graders!