Curriculum Spotlight: Science (continued)

By Anonymous
Science
Egg in a Jar

Does air move in predictable ways?

This was the question we defined last week for our investigations into air pressure and wind. Last week, students completed the second investigation: egg in a jar. The investigation plan was as follows:


Students made predictions about what would happen, but had a difficult time connecting the potential results of the experiment to what they had already learned about air pressure.

Joey waiting for the fire to build
(this was a video from last year)


After making observations, students analyzed the data. Then, as part of the explanation phase, we learned about how fire uses oxygen. Students used knowledge from Investigation 1 and this new information to figure out what caused the egg to end up in the bottle. The classes correctly concluded that once the fire had used the oxygen, the air pressure in the jar was less than the air pressure in the room. As a result, the air pushed its way into the jar, forcing the egg along with it.



We doubt students will experience wind again without thinking about its origins...

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