Tag Archives: Pressure

Weather: Extreme Physical Change

For the final lesson of Chapter 12 (and Unit 3!), students applied their understanding of temperature and pressure to the extreme weather example of hurricanes.  We began class with a video describing how hurricanes form:

After the video, we briefly reviewed the lesson objectives in the Lesson 67 PowerPoint.  Students then received a packet containing the Lesson 67 Worksheet, a handout showing the anatomy of a hurricane, a list of extreme weather occurrences from 2005, and a graph of global temperature changes from 1880-2012.  For homework, students were assigned textbook questions 1 and 4.

Weather: Ideal Gas Law

After several lessons learning about the component parts and relationships mathematically connecting pressure, volume, temperature, and number of particles, the Ideal Gas Law was revealed.  We worked through the Lesson 64 worksheet and then watched a Crash Course video on the Ideal Gas Law:

After the video, we worked through Lesson 65 textbook problems 3 and 5.  The notes from the white board are shown below.  The Lesson 65 PowerPoint and Lesson 65 Worksheet are available for students who would like to see them.  We did not use either today in class, and the Lesson 65 Worksheet was not assigned.

Weather: Air Pressure

Lots of demonstrations today!  We will conduct as many demonstrations as time and resources permit.  Students are encouraged to watch the videos below to make additional observations and to help explain what is happening in each of the demonstrations.  Students will write observations and draw pictures of air molecules to visualize pressure using the space provided on the Lesson 57 Worksheet.  The Lesson 57 PowerPoint includes the definition of pressure.

Balloon in a bottle:

Soft drink can:

Submerged cup:

Air pressure mat:

Cup and card:

Balloon in a vacuum:

Marshmallows:

Egg in a bottle: