Website of the Week: Knowitall.org

Visit ETV's "educational web portal" at Knowitall.org. You can try out simulations and interactive learning lessons on a number of topics, including science. Check out the Science Activities & Simulations at NASA Online and explore topics like Lightning & Static (my favorite), Lift, and How Sound Travels. Or visit Kids Work! and test drive your new job at the virtual hospital -- a medical lab technician, pharmacist, or a public relations specialist -- as part of Job Play. If that doesn't grab you, drop by The Hobby Shop, where you can look at items like fruit flies under a virtual microscope, run a virtual chemistry experiment, or "throw" water balloons with the catapult (it took me three tries to hit the target!).