Science 10 Martin 25 Jan 2013 Link to the Sc 10 powerpoint presentations chapters 4-8: https://webmail.vsb.bc.ca/owa/redir.aspx?C=b9w_zcFzpEeAonurlhK6sOGR-v6wzs8IlX4p7iuEG3u161O93FNpnnPmafVxkTSvDuRJBqdPYYI.&URL=https%3a%2f%2fdocs.google.com%2fa%2fjohnoliver.ca%2ffolder%2fd%2f0B6dKKPnHbFDqTlpPa01lTjFBSEU%2fedit