Melting Icebergs

Melting Icebergs Experiment

The experiment we did in the lab “Melting Icebergs,” shows what would happen if the ice at the North Pole melted.  The ice at the North Pole is floating on water so it has already displaced the volume of the ice in the ocean.  If the ice melted, the oceans would not rise. 

On the other hand, the ice at the South Pole covers Antarctica.  If that ice melts it will cause ocean levels to rise.  Scientists believe that Antarctica is covered with about 90% of Earth’s ice which, if melted, could cause the oceans to rise about 200 feet.  Since the average temperature in Antarctica is -37°, most scientists believe that this meltdown will not occur.

If I were doing this experiment with my students I would certainly expect them to spend time researching both sides of the global warming issue.  Although most scientists agree that the atmosphere is warming, they do not all agree on the cause.  A look at ancient climates might be valuable to determine how shifts in climate have occurred in the past.

The other question I would ask my students is, how can we perform a second experiment to model what would happen if the South Pole ice cap melted.

I have had a bad health week so I am signing off for now!  Have a good week!

STEM Lesson Plan Reflection

This blog was created to allow me to reflect on my experiences as a science teacher and as a graduate student at Walden University.  I welcome your comments and questions.

This reflection is regarding my STEM strategies lesson plan created for my Nature of Science course at Walden University.  The 5 E’s strategy that is:  engagement, exploration, explanation, elaboration, and evaluation is helpful in planning lessons because I helps create a lesson that is complete and considers all parts of the lesson from beginning to end.  It is very similar to the methods I used when I was an undergraduate education major.

Currently, I teach three subject, 7^th grade math, 7^th grade science, and 8^th grade science.  In the past I have also taught 8^th grade math.  I am fortunate to have a SmartBoard, so all my lessons are prepared in advance.  Of course, after teaching a lesson, I often go back to change any area where I find student misconceptions.  It is not very realistic to think that a teacher could utilize a template such as the one we were required to use for this lesson plan for every lesson. However, as you get to know your students and as you become a more experienced teacher, you begin to be more successful with engaging students in a new lessons or making sure that you are extending student thinking.  It is never a bad thing to go through the process of completing some formalized lesson plans to ensure that you are not taking short cuts in your classroom presentations.

The lesson plan I created primarily deals with students evaluating Earth’s four systems and how those systems interact with each other.  Students will use the Deepwater Horizon oil spill to help them use a real-world problem for their exploration.  On a secondary level, the lesson deals with how human activity impacts the environment and finally, how we weigh the benefits/costs of things like oil drilling.  The biggest logistical issue I may face in presenting the lesson is getting time in the computer lab for the elaboration activity.  We have two computer labs in our school, but they are heavily used by our language arts department.

Finally, I would like to share two websites that I used to obtain information to use in the engagement and elaboration parts of my lesson.  The websites are:

Smithsonian Education - http://smithsonianeducation.org

Teachers’ Domain - http://www.teachersdomain.org

Smithsonian Education has a variety of interesting lesson plans that meet national content standards.  Teacher’s Domain has a wonderful array of digital media, movies, slideshows, and animations that I often include in my daily lessons.

Thanks for reading my first blog.  As I mentioned before, I welcome your comments!