Other
Experiments on Air by Henry Cavendish
Cavendish's 1785 original paper on phlogiston and air. Fascinating reading.
Soft Schools
Soft Schools: Science Games: The Parts of the Microscope
Look closely and see if you can identify the various parts of the microscope.
Other
Mindspring: Another Ear Infection?
Discusses the location and function of the eustachian tube, which is a key factor in middle ear infections. Includes a diagram of the ear.
Massachusetts Institute of Technology
Mit: Invention of the Week: Lee De Forest
This website provides information on the life and inventions of Lee DeForest, the man who invented the audion tube, which made commercial radio broadcasting practical.
Dallas Symphony Orchestra
Dallas Symphony Orchestra Kids: Flute
Read about the flute, how it produces sound, and how it's made. Learn about the woodwind family and the differences in the divisions in the three branches of this family. Use RealAudio or Windows Media Player to hear the flute alone, and...
University of Illinois
University of Illinois: Mc Kinley Health Center: Eustachian Tube Dysfunction
Describes the eustachian tube, and explains the function of the tube. Diagram, definition, and disease states.
Other
Eastern Illinois University: The Eustachian Tube
Describes the role that the eustachian tube plays in maintaining pressure in the middle ear, during flight in an airplane or other changes in altitude and pressure. Tells why your ears pop more on the descent than on the ascent of a flight.
Calculator Soup
Calculator Soup: Geometric Shapes
This reference lists formulas for geometric shape measurements and offers links to online calculators.
My Science Site
Bj's Science: Microscope Word Search [Pdf]
Site provides a helpful word search teachers can use to help their students familiarize themselves with a microscope and have some fun at the same time.