Science textbook warning stickers

Cobb County, Georgia biology students receive their science textbooks with a disclaimer sticker prominently affixed:

This textbook contains material on evolution. Evolution is a theory, not a fact, regarding the origin of living things. This material should be approached with an open mind, studied carefully and critically considered.

Take that, you... you... godless secular rationalists!

Colin Purrington, a biology professor at Swarthmore, offers us a site with some other helpful disclaimer/warning stickers for science textbooks, e.g.:

This textbook suggests that the earth is spherical. The shape of the earth is a controversial topic, and not all people accept the theory. This material should be approached with an open mind, studied carefully, and critically considered.

This textbook contains material on gravity. Gravity is a theory, not a fact, regarding a force that cannot be directly seen...

There are even stickers for astronomy textbooks that will help us guard against the onslaught of filthy pagan heliocentrism (the theory that the Earth orbits the Sun and not the other way around.)

(sticker site link via Metafilter)