Dartmouth College
Dartmouth College: Chem Lab: Spectronic 20 Analog
This site explains how a Spec. 20 spectrometer measures the amount of visible light absorbed by a colored solution. Requires QuickTime plug-in for some features.
Dartmouth College
Dartmouth College: Chem Lab: Digital Spectrometer
This site explains how a digital spectrometer measures the amount of visible light absorbed by a colored solution.
Dartmouth College
Dartmouth College: Chem Lab: Scanning Spectrometer
The scanning spectrometer measures absorbance vs. wavelength for liquid samples. Directions on how to use this instrument are provided here.
Dartmouth College
Dartmouth College: Chem Lab: Flasks, Beakers, & Graduated Cylinders
Find out the uses for Erlenmeyer flasks and beakers and graduated cylinders in this informative site.
Dartmouth College
Dartmouth College: Top Loading Balance
Use a top loading balance to weigh solid material when a precision of 0.1 is adequate. Find out how to operate this instrument in this concise site.
TeachEngineering
Teach Engineering: Smoke and Mirrors
Students develop a persuasive peer-to-peer case against smoking, with the goal to understand how language usage can influence perception, attitudes and behavior.
TeachEngineering
Teach Engineering: How Should Our Gardens Grow?
In this lesson, students will learn about types of land use by humans and evaluate the ways land is used in their local community. They will also consider the environmental effects of the different types of land use. Students will assume...