Group 4 project introduction 2009

Students listen to presentations outlining the guidelines, requirements and itinerary for the group 4 project.  Teams of students will design and conduct their own investigations in a wetland area.  Each student will approach the investigation from the perspective of one of the sciences: Biology, Chemistry, Physics or Environmental Science.  Team assignments and planning and training sessions followed the lunch break.  Each team collaborated to produce a plan for investigation and a list of equipment needed in the field.  Students conduct field tests on friday, rain or shine.

Corrosion

Corrosion may take a hundred years to be evident.  This plaque shows copper turning green as it oxidizes to ions.  Iron rusts much faster than copper and crumbles away to dust in a matter of years.  Voltaic cells force the electrons involved in spontaneous corrosion reactions through external wires to generate electricity.  Electrolysis uses electricity to force metals into nonspontaneous reactions at the electrodes.  Heavily corroded cannon pulled from the sea can benefit from electrolytic restoration. 

Welcome to HL2 chemblog

Hi and welcome to HL2 chemblog. IB HL2 chemistry finishes off the 2 year course with a look at redox reactions, organic chemistry, environmental chemistry and medicines and drugs.  Students will take exams in May and then be free until graduation in early June.  The senior year will challenge and frustrate many but all to good cause.  So keep your spirits up and fight the good fight.  It will be worth it.