Website I have found helpful (egg tempera & casein tempera )

"Tempera Paintings." Encarta. 18 Feb. 2008

From this website I found out a lot about how tempera paint was used and made it the 13th and 14th century.

http://encarta.msn.com/encyclopedia_761576276/Tempera_Painting.html

"Making Egg Tempera." Daniel Smith. 18 Feb. 2008 .

From this website I found out how to make egg tempera

"SAFETY CONCERNS FOR PREGNANT PAINTERS." Society of Tempera Painters. 18 Feb. 2008 .

I found safety concerns for pregnant painters on this website.

"Healthy and Safety in the Arts." Tucson. 18 Feb. 2008 .

This website was a really good one because, it told me the hazards and safety for each kind of pigment. And why it was dangerous