Here are some experiments you could try at home.
DNA extractions from fruit and veg
Recipe sheet for DNA extractions in the kitchen - by Centre members.
Recipe sheet for gel electrophoresis in the kitchen - by Centre members.
Recipe sheet for growing crystals in the kitchen - by Centre members.
Information for teachers/demonstrators.
Recipe sheet for making plastic in the kitchen - by students from the University of Oxford Department of Chemistry.
Recipe sheet for making paint in the kitchen - by the Oxford University Museums
Recipe sheet for chromatography in the kitchen, using Smarties - by students from the University of Oxford.
DNA modelling recipe - by Centre members.
DNA base modelling recipe sheet - by Centre members.
www.instructables.com/id/Science_Fair_Projects
DNA activities
www.yourgenome.org/downloads/activities.shtml
Toys from trash - includes "Beginner's Biology" section
http://arvindguptatoys.com/toys.html
Contributed Links
www.exploratorium.edu/explore/handson.html
www.preiser.com/at-home-science-laboratory-experiments
www.partselect.com/JustForFun/Taking-Science-From-The-Lab-To-The-Kitchen.aspx
... and from Ms. Ward's class somewhere in Maine, US:
www.designerappliances.com/articles/a-home-guide-to-kitchen-science-experiments