Science Fair Projects (and related searches) get an amazing 40,000 searches a day. It is a very competitive subject area on the internet and you need pages with rank of 7 or 8 to get in the top twenty search results.
This is one of the wonderful things about Open Site Encyclopedia, it has such a high page rank of 9 that it makes it very worthwhile to build pages in these competitive areas.
I hope over the next six months to build about ten sub category pages in this area (there are lots of fun experiments!) and these should generate several thousand page views a day to the Open Site.

Geoff Haselhurst, 18th April, 2004