Today we talked about the limiting factors in the arctic ecosystem. Do you remember what the main limiting factor is for this ecosystem? It is not cold temperatures!
| 2013-05-21_limiting_factors_2a.pdf |
| File Size: | 650 kb |
| File Type: | pdf |
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If every egg that the adult female frog lays at the beginning of the season becomes an adult frog , imagine what the pond would look like!!!!
This is known in ecology as the reproductive potential of the organism and for our chorus frog you calculated this to be 320 frogs in a year or 640 for the 2 female frogs in the pond!
Of course his does not happen so that factors that cause limits to this growth are known as limiting factors.
Today we also briefly talked about the Pond Ecosystem write up that we will begin in class on Friday. Plus we went to the pond to gather data one more time and to sketch the pond for the project.
| 2013-05-20_reproductive_potential.pdf |
| File Size: | 3841 kb |
| File Type: | pdf |
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What a crazy week!!! i am sure glad the the MSP testing is finished so we can get back to some science!!!!!
Today we did stretch our brains a little and think about the 10% rule.
What do you remember?
Is it possible for 1000kg of algae biomass to support a poulation of gulls with 1,00kg biomass? If so how, if not why not?
| 2013-05-17_10_percent_rule.pdf |
| File Size: | 2643 kb |
| File Type: | pdf |
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Can you explain the science behind the title of this book?
We are going to look now in more detail at the light energy that is captured by the sun and how this is transferred through the ecosystem as chemical energy.
We also took the Photosynthesis pre-test. The test will be Wednesday.
| 2013-05-13_trophic_levels.pdf |
| File Size: | 2061 kb |
| File Type: | pdf |
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Today we continued our discussion of photosynthesis. I hope that one of the ideas you can away with is that plants provide the oxygen for living organisms to breath.
With this in mind I asked the question 'How can we improve the oxygen levels in the pond?'
During our pond visit today we noticed that the water level is very low, down 6cm from the last visit! We also noticed very fat tadpoles and some with legs, plus we saw the tiniest pond skaters!!!
Good luck everyone for tomorrow's math MSP. See you all friday when we will be modeling the process of photosynthesis!
| 2013-05-07photosynthesis_1.pdf |
| File Size: | 4432 kb |
| File Type: | pdf |
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What great weather to talk about photosynthesis!!!
On the initial survey, many of you thought that soil was needed for producers/plants to make food. hopefully you now know that there are just 2 materials needed for theplant to make food.
Carbon Dioxide and Water
| 2013-05-07photosynthesis_1.pdf |
| File Size: | 4432 kb |
| File Type: | pdf |
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Today was a lovely day in class as you all carefully completed your plant field notes page.
If for any reason you did not get this done please complete the page over the weekend and turn it into the folders on Monday.
Enjoy the lovely weekend!
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