Meliscellaneous

https://www.galileoscope.org/gs/

The Galileoscope™ is a high-quality, low-cost telescope kit developed for the International Year of Astronomy 2009 by a team of leading astronomers, optical engineers, and science educators. No matter where you live, with this easy-to-assemble, 50-mm (2-inch) diameter, 25- to 50-power achromatic refractor, you can see the celestial wonders that Galileo Galilei first glimpsed 400 years ago and that still delight stargazers today. These include lunar craters and mountains, four moons circling Jupiter, the phases of Venus, Saturn’s rings, and countless stars invisible to the unaided eye. The Galileoscope costs just US$15 each plus shipping for 1 to 99 units, or US$12.50 each plus shipping for 100 or more.

Reactions in Chemistry

http://www.learner.org/workshops/chemistry/index.html

The World of Chemistry

http://www.learner.org/resources/series61.html

You Be the Chemist

http://www.chemed.org/ybtc/home.aspx