Evolution: Survival: Microbe Clock
One of the daunting battles scientists are fighting right now is how to stave off antibiotic resistance of certain bacteria that cause lethal diseases. Some bacteria have evolved resistance to almost all antibiotics that are in use today. Use the microbe clock to see how the bacteria develop antibiotic resistance and read about why it has the potential to be such a worldwide problem. After watching the microbes replicate on the microbe clock, read the discussion with four experts about how to reduce the threat of more bacteria developing a resistance to antibiotics and what corrective measures we can make in our own lives to perhaps slow the bacterial resistance.
http://www.pbs.org/wgbh/evolution/survival/clock/
Memorial Hall Museum: American Centuries: Kids’ Home Page
Settle down and make yourself comfortable as you visit this online museum that is filled with interactive learning. Exploring everyday American historical artifacts from the lives of everyday people brings history to life and it’s fun to compare your life with what life was like a few centuries ago. Investigate the clothing worn in the 18th, 19th, and early 20th centuries with Flash Player, then read about the individual pieces of clothing in the printable version. Watch brief Quicktime movies of old tools in action, see objects in the round, and find out what kids did years ago at school and at home.
http://memorialhall.mass.edu/kids_home.html