Physical Science

September 27, 2013

           The students taking Physical Science with Mr. Benge have been studying the International System of measurements; density; and the structure of an atom.  In each chapter the students have been learning how to use the main ideas of the unit to their advantage in order to solve various problems.  The students have also been learning skills that they can use in life outside of school.

            The international system of measurements is a topic that most kids are unfamiliar with because in the US we use a completely different system of measurements in our everyday lives.  It is important for the kids to realize that this is not the case throughout the world.  In order to prepare them for life outside of school, the students have been learning how to convert common "American" measurements into the proper SI units and vise versa.  For example, after this lesson the students will be able to accurately tell you how many milliliters are needed to fill a box with a specific volume that is measured in cubic centimeters.  Being able to convert between units of measurements and understand what is being asked will be a skill that they will be able to use throughout their lives.

            The density unit has been a topic that most of the students have found to be interesting.  I believe their sparked interest is due to the fact that floating and sinking is an idea that they are all familiar with but one that they do not necessarily understand.  After this unit, the students can predict based on the density of a liquid whether or not it will sink or float in water.  They also now understand why ice floats in water rather than sinking like most other solids.

            Atomic structure was an idea that was unknown to just about every student.  In order gain a better understanding of what each particle is and where they are found in an atom, the students completed an atom building simulation as well as an element project.  In this project the students worked in groups of 2-3 and selected an element to do a presentation about.  The students were required to research their element, create a visual aid (poster, PowerPoint, or model), and present their project in front of the entire class.  The students all worked extremely hard on their projects and overall the entire class did very well. 

            The Physical Science students are working very hard so far this year and are doing very well.  I feel that they have gained some valuable knowledge that they will be able to use in their lives outside of school.  I anticipate more success for each class and I look forward to meeting all of the parents of these students at parent teacher conferences later this semester.


David Benge

Physical Science/ Chemistry

Lexington High School

Room 311