Dot
Tubes for Quick Identification
Submitted by Mitzi Smith, Walkersville High School, Walkersville,
Maryland
My students were having trouble telling the difference between a 20 x
150-mm test tube and an 18 x 150-mm test tube. Using permanent markers,
I put a blue dot on the 20s and a red dot on the 18s. Now we can
identify them at a glance using the dots. Some dots do wash off after a
while and need to be redone, but it’s worth it.
Teachers
often ask us "How do I dispose of a Carolina Biological Supply Company
product when it is no longer needed?" Unfortunately, there is no single
correct answer. Get information to help you determine the most
appropriate disposal option for your requirements.
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Expanded online chemical assortment (over 600)
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Luminol
is a chemical that produces a beautiful blue fluorescence when oxidized
by hydrogen peroxide. It is one of the best-known examples of
chemiluminescence and a valuable crime scene investigation tool. Learn
how you can use it to augment lessons on oxidation-reduction reactions,
conservation of energy, and electron energy levels.
Green
Fluorescent Protein Pioneers Share 2008 Nobel Prize in Chemistry
From the Web site ScienceDaily, October 8, 2008
On the subject of glowing things, here's a story about green fluorescent
protein (GFP). GFP is now widely used as a "tagging tool" in bioscience.
Uncover more information about this important discovery and why it
earned 3 scientists the 2008 Nobel Prize in Chemistry.
Disposing
of preserved specimens and preservation fluids after use isn't
complicated, but does require some thoughtful planning. Find out how to
properly dispose of both these types of waste and whom to contact should
you have any questions or need assistance.
Carolina
is your online chemistry solution. We've just updated our Web site with
great new features (and savings!), including:
