SCH 3U
Hand in worksheet from Thursday
Correct Quiz
Review last weeks material Q 3, 5 p. 192
Percent Composition - note and practice
Q 1, 2, 4 p. 201
Q 5 a & b, 6, 8 p. 204
SNC 1PE
Photosynthesis and Cellular Respiration
Food chains and food webs.
Practice Quiz
Quiz Wednesday
SNC 2D
Quiz
Lasers and how they work
Homework: types of light due next Monday
4 comments:
"Optics Mini Presentation"
Topic; Why does the sun become red after a volcanic eruption?
I've Googled information for at least an hour now and all I've gotten was information on why the sky changes color.
"Volcanic Aerosol" or you could say the dust, ashes, sulphur compounds (such as SO2) mixture gets in the way of the rays and gives the illusion that the sky itself is red.
But that is all I can find, nothing about why the sun itself turns red after an eruption. Would these also be the same situation for the sun?
I will let Mr. V answer this more fully but I believe you are on the right track - he can correct me if I am wrong here. The sun itself is quite far from earth and thus would not itself change colour due to the volcanic eruption but how we see the light on earth would be altered by the means you have mentioned.
Thanks.
"Different Ways of Producing Light" (Work sheet due monday).
What does it mean by "non example"
Vivi,
You are definitely on the right track. Remember, that there are many planets and eruptions may take place on many of them at different times, which would mean a lot of days of red sun. Given that we don't see a red sun like that very often, it must only appear red. So, a question I would ask is how does the sulphur, ash etc. cause the sun to appear red? This would be an interesting piece of information.
Regarding the "non-example," I am looking to see that you understand what it is, as well as what it isn't. So, give an example of what it is, as well as a light source that isn't that particular form of light. Do you get it?
Thanks for posting.
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