Environmental Science: What to do during the cold winter months – by Dave Gervais

Source: Even during the winter, there are some wet swampy areas that defy freezing. Sometimes it’s the current; sometimes it’s the heat from decomposition that keeps the water from freezing. Alternatively chopping through ice in a shallow swampy are would also give you access to the bottom detritus. A sample was taken from my backyard pond on Dec 10th.

Sample: When taking a sample, ensure that there is plenty of vegetation. Some will still be green. You may find Duck Weed, or some kind of filamentous algae. A 500 mL sample will provide enough material for several classes. I re-purposed a used blister pack to act as well slides for this activity. When glued to popsicle sticks, my mechanical stage easily gripped this. That allowed me to have 6 samples on the stage at once.

Thanks for the great ideas Dave!!!!!!!!!!!!!!!

Stay warm

 

Poppin’ Pine Cones

Pine ConesGrade 3: Life Systems

Contributed by: Ellen Webb

On a hot summer day, take students for a walk near coniferous trees.  If you are in luck, you may hear the snapping sound of the cones popping open naturally to release the seeds.  Pinecone seeds must be released from their cones before the keys can be transported on the winds.

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