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Carolina Tips - April 2009
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Carolina Biological Supply Company |
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Diatom
Trap
Middle School
Submitted by Leone Broadhead, The Elon School, Elon, NC
Here’s an inexpensive way to trap and observe diatoms from local bodies
of water.
- Take a 7-oz Styrofoam® cup and carefully press a standard
microscope slide through it so that a small section of slide
protrudes from both sides of the cup, thus securing the slide. This
is your diatom trap.
- Place the trap in a river, lake, stream, or pond, inverting the
cup so that the slide is immersed in the water.
- Leave the trap in the water for several days. Diatoms will
settle on the slide during the time it is immersed.
- Retrieve the trap from the water and carefully remove the slide
from the cup. Place the slide under a microscope to view the
diatoms.
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 Coming into the Genome Age: The Challenge to Science Education
The genomic landscapes of living organisms present vistas of almost
limitless promise and offer challenges for people eager for knowledge,
fortune, adventure, or contemplation. David Micklos, executive director
of the Dolan DNA Learning Center, discusses the challenges (and
opportunities) these new landscapes present to educators.
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 Digging
into Earthworms
Earthworms are one of earth’s natural
recyclers. They are also ideal specimens for teaching basic anatomy and
investigating simple organ systems. Learn how to use these economical,
convenient specimens to help students practice their dissection
techniques before progressing to more complex specimens such as frogs or
pigs.
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Read the complete Coming into the Genome Age: The Challenge to Science Education
article
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Read the complete
Digging into Earthworms article
>> |
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Getting Ready for Butterflies
