5New Foundland and Labrador Department of Education.General Science 1200 Course Description (revised,1991). http://www.ed.gov.nl.ca/edu/sp/pcdbgl.htm .
6New Foundland and Labrador Department of Education.General Science 1206 Curriculum Guide (revised 2002). http://www.ed.gov.nl.ca/edu/sp/pcdbgl.htm .
7New Foundland and Labrador Department of Education.Science Chemistry 2202 Curriculum Guide (revised,2004). http://www.ed.gov.nl.ca/edu/sp/pcdbgl.htm .
8New Foundland and Labrador Department of Education.Science Chemistry 3202 Curriculum Guide (revised,2005). http://www.ed.gov.nl.ca/edu/sp/pcdbgl.htm .