Home : 2001 : October : 12
simple activities
By Holly
|
|
The most basic diffusion activity is a demo I've always used as an intro. Stand in one corner of your room with all doors and windows closed. Spray a strong perfume. (I used to teach high school, in every class somebody| has a strong scent!). Ask the students to raise their hands when they smell the perfume, and keep them up. A very clear pattern emerges. I often end up discussing air currents due to air conditioning/heaters. The next activity is starch and iodine. Iodine water in a beaker with a tube of dialysis membrane filled with starch in it. (You have to review color change indicators first.) Osmosis | |
- classic potato in 3 beakers of water with various salt concentrations.Mitosis - prepared slides, cheek cell scrapings (now often banned as "human tissue"), and a pipecleaner lab I wrote. If you want more info, let me know.
BACK
The ProTeacher Collection - All rights reserved
For individual use only. Do not copy, reproduce or transmit.
Copyright © 1998-2008 ProTeacher®
Visit our ProTeacher Community
What people are currently discussing in the ProTeacher Community:
|
|
