|Scooped by Lisa Gan|
The Acid Ocean site by VirtualUrchin is a very content heavy flash site that guides students through the phenomena of ocean acidification and the science behind it. As you make your way through the source you are introduced to the basics (such as pH etc.) before guiding you through the chemistry behind ocean acidification. Scattered through the site are short activities (such as ranking substances by their pH) that allow the student to learn through first hand practise. At the end of the flash site the students are presented with a summary as well as being introduced to the idea of modelling the concepts in a science lab.
Despite this source requiring quite an extensive base knowledge of chemistry I feel its a good source for addressing the science behind the concept of ocean acidification. It builds up towards the more difficult scientific concepts by building a foundation of knowledge for the students. In order to use this source to its full potential students will require background knowledge in chemistry and acid/base interactions. It would be best to use this source as a collective class rather than individually as this would allow the teacher to guide the students through all the information being presented.
Overall this source has its advantages and disadvantages of use. By presenting this resource to the class as a whole the teacher has the advantage of being able to guide the students and explain the concepts using the resource to demonstrate the steps involved in ocean acidification. Students would otherwise find this resource quite challenging to do individually, resulting in it being quite a time consuming activity to perform in the classroom.