Activity: Slowing Down Pond Creatures the Natural Way
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Background: Viewing protozoa can be quite entertaining, but some of them move so swiftly, it is difficult to see them for more than a second or two. While there are chemicals that are used to slow them down, we like to provide an obstacle course. Read on for details. Materials:
Place the fibers in
the drop of water, and cover with a cover
slip, lowering it without trapping air bubbles.
Once the slip is in place, excess water can be removed by placing the edge
of a paper towel at the edge of the cover slip.
This should slow the little fellers down, and trap some of them in place
long enough for a good look.
Author:
John Lind
GreatScopes
Click HERE for list of all Experiments
Background: Viewing protozoa can be quite entertaining, but some of them move so swiftly, it is difficult to see them for more than a second or two. While there are chemicals that are used to slow them down, we like to provide an obstacle course. Read on for details. Materials:
- Compound light microscope like THIS or one of THESE.
- Pond, swamp, stream, or puddle water
- Cotton swab or cotton ball
- Eyedropper
- Plain or Concave Microscope Slide
- Cover Slip
Place the fibers in
the drop of water, and cover with a cover
slip, lowering it without trapping air bubbles.
Once the slip is in place, excess water can be removed by placing the edge
of a paper towel at the edge of the cover slip.
This should slow the little fellers down, and trap some of them in place
long enough for a good look.
Author:
John LindGreatScopes
Click HERE for list of all Experiments
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