In this episode we go to Central Park and take a look at the chemical weathering of Cleopatra’s Needle. Then we go back to lab and I show you how to model chemical weathering with your students.
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Host: Michael Doig
Duration: 4:19
Materials
Chalk
Paper Clip
Vinegar
Eye Dropper
250ml Beaker
Weathering Fast Facts
Weathering is the mechanical [...]
In this demonstration we visit the lab and look at the circulation of water based on temperature differences. This demonstration is done using the Oceanic Circulation Model from ScienceKit.com.
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Host: Michael Doig
Duration: 4:16
Materials
Oceanic Circulation Model
Ice
Water (Hot/Cold)
Food Coloring
Convection Fast Facts
Heated fluids rise because they have a lower density
Cooled fluids [...]
This demonstration was filmed at Gateway Education Center during a professional development seminar.
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Materials
Milk Bottle (or other bottle with an egg size opening)
Hard Boiled Egg
Matches
Paper
Instructions
To get the egg into the bottle you:
Hard boil several eggs for about 12 mins.
Create a tightly wrapped piece of paper that will [...]
Density is a measure of the amount of mass in a given volume. In this demonstration we visit the lab and look at the density of Pepsi versus Diet Pepsi. This is a very simple demonstration, but students love it.
Watch on: YouTube | Revver | Vimeo | Blip | Download
Host: Michael Doig
Duration: 3:51