Videos of 384 demonstrations performed by teachers. Each one has a write up to replicate the demo from.
A list of demos by topic that include downloadable instructions (in Word) with descriptions, materials needed, and instructions.
A demo resource site with many videos and some instructions for and discussions of demos.
An arrangement of demos, lesson plans and videos spanning multiple science fields geared mostly to elementary students.
Activities correlating to Virginia 8th Grade Physical Science SOLs
A plethora of science experiments over a range of topics. The site also has science kits, supplies and gadgets for sale.
ACS has come up with a guide to becoming a resource in the classroom, including planning classroom visits, how to discuss topics with children, and sample activities and demonstrations to do with students.
This site has a list of chemistry demonstrations, organized by household materials, and lab chemicals. Each one has directions and an explanation. Doesn’t appear to be updated since 2003.
This site has a group of experiments that can be done at home using household materials, descriptions of some common and interesting chemicals, and many additional resources.