1. Alberta Education. 2006. Knowledge and employability science grades 8 and 9. http://education.alberta.ca/media/791899/sci89_06.pdf .
2. American Association for the Advancement of Science. 2000. Designs for science literacy, Project 2061. Washington DC: National Science Teachers Association.
3. Amgen Canada Incorporated and Let’s Talk Science. 2012. Spotlight on science learning—A benchmark of Canadian talent Accessed from Let’s Talk Science. http://www.letstalkscience.ca/component/flippingbook/book/3.html?tmpl=component .
4. Aubusson, P.J., A.G. Harrison, and S.M. Ritchie (eds.). 2006. Metaphor and analogy in science education. Dordrecht, Netherlands: Springer.
5. BC Ministry of Education. 2008. Science Grade 7-10. Victoria BC. http://www.bced.gov.bc.ca/irp/pdfs/sciences/2006sci_8.pdf .