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http://www.bbc.co.uk/scotland/education/bitesize/higher/chemistry/energy/bsp1_rev.shtml 4 slides and take the quiz at the end http://www.ewart.org.uk/science/structures/str13.htm http://www.ewart.org.uk/science/structures/str14.htm http://www.ewart.org.uk/science/structures/str7.htm
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http://www.bbc.co.uk/scotland/education/bitesize/higher/chemistry/energy/bsp1_rev.shtmlhttp://www.bbc.co.uk/scotland/education/bitesize/higher/chemistry/energy/bsp1_rev.shtml • 4 slides and take the quiz at the end • http://www.ewart.org.uk/science/structures/str13.htm • http://www.ewart.org.uk/science/structures/str14.htm • http://www.ewart.org.uk/science/structures/str7.htm • http://www.wpbschoolhouse.btinternet.co.uk/page04/4_72bond/4_72bondQ.htm