Lesson C3.1 http://www.bgs.ac.uk/discoveringGeology/climateChange/climateThroughTime.html
Lesson C3.1.1
http://www.earthscienceeducation.com
www.cochranes.co.uk/show_category.asp?id=50
Lesson C3.1.2 http://www.bgs.ac.uk/discoveringGeology/climateChange/climateThroughTime.html
Lesson C3.2.1
http://www.earthlearningidea.com/
Lesson C3.3 http://www.maldonsalt.co.uk/
http://www.nuffieldfoundation.org/content/separating-sand-and-salt
Lesson C3.4.1
www.healthyeatingclub.org/info/books-phds/books/foodfacts/html/data/data5a.html#salt_and_high_blood_pressure
http://www.nhs.uk/Livewell/Goodfood/Pages/salt.aspx
www.saltsense.co.uk
Lesson C3.5.1 http://www.nuffieldfoundation.org/content/making-soaps-and-detergents
Lesson C3.6.1 http://www.nuffieldfoundation.org/practical-chemistry/properties-hydrogen-chloride
http://www.nuffieldfoundation.org/practical-chemistry/generating-collecting-and-testing-gases
Lesson C3.8.3
www.sustain-ed.org.
Lesson C3.9 www.sustainability-ed.org.uk/pages/example5-1.htm.
Lesson C3.9.1 www.sustainability-ed.org.uk/pages/example1-1.htm
Lesson C3.11.1
http://www.twentyfirstcenturyscience.org/?q=support-and-training/teaching-ideas-about-science
