Author Archives: Stephen
Reproduction: Core and AHL
Here is the presentation for the Core content – Grade 9’s, you can look too, as we’re on this unit in HPD! There are tons of videos and animations out there about reproduction – many are linked in the presentations, so click on the shadowed images to watch them.
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And here is the AHL presentation, including spermatogenesis, oogenesis, hcg, hormonal control of birth.
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Standard Level students Essential Biology 6.6 Reproduction (Click4Biology)
Higher Level students Essential Biology 6.6 & 11.4 Reproduction (Click4Biology)
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Here are the Pythons with their birth sketch:
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And some BioEthics cases on IVF:
Australasian bioethics special: IVF
Journal of Medical Ethics: State of the Debate
“Don’t drag your knuckles when you walk!” More science comedy
From Brian Malow, Science Comedian.
More on his channel, ScienceComedian.
Tim Lee -Science Comedian
Not the Tim Lee in our class, this guy has a PhD and uses it for powerpoint comedy. Check out his inventive use of cladograms:
More science comedy to come…
Our Place in Space
These are for Grade 9 as we learn about Cosmology together!
The universe to scale:
Zoom-out from Earth:
Images from the Hubble Space Telescope:
Keep asking those questions!
Grade 10 – Pathogens and Disease
Grade 10 Pathogens and Disease – IB Biology prep course
Stay tuned to the class page, found here: Pathogens and Disease
Complete all the notes on Essential Biology: Pathogens and Disease
Click4Biology notes:
Core content: http://click4biology.info/c4b/6/hum6.3.htm
Further content: http://click4biology.info/c4b/11/hum11.1.htm
Here is the Pathogenic or Non-Pathogenic? Quiz:
Check out some of these video clips on the immune system:
Muscles and Movement
SL Students are working on your EE’s this week. HL’s, take care to understand this completely – it’s not as easy as it looks!
Essential Biology 11.2: Muscles and Movement.
Click4Biology page here.
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Joints and the Skeleton:
Knee: rotary hinge joint
Hip, shoulder, ankle, foot, knee from Mid South Orthopedics
Inside the knee from choroknamu
Muscles and Contraction:
Full tutorial from Brooks Cole
Great explanation from Campbell Biology
And another from McGraw Hill
Actin and myosin from Blackwell
Can you explain the steps using all the key terms?
Neuromuscular junction:
Cell Theory
Art trippers, you missed the first episode of Cell – but don’t worry, you can get it from student access or see it here. All students, I expect you to watch the remaining episodes over the coming weeks, in your own time. Here is the work for this topic.
Cell Theory:
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Essential Biology 2.1: Cell Theory
And the wikipedia page
And C4B page
And the brilliant Amazing Cells resource from Learn.Genetics at Utah.
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Size of cells:
Learn.Genetics cell size
Practice calculations sheet: Calculations in Microscopy
Here’s a page of animations about techniques in microscopy
SA:Vol ratio from Wikipedia
And some cool animations to put things in perspective:
From Learn.Genetics at Utah (best one) or this one from Cells Alive.
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Cell Differentiation:
Cell differentiation video from Teachers Domain
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Virtual Electron Microscope - free and cool
Stem Cells:
NewScientist special reports on Stem Cells
Great Stem Cell videos from Eurostemcell.org (look at who they quote as a reviewer!)
Stem Cells cribsheet from SEED Magazine
Stem Cells transplants in lymphoma (animation)
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Electron Microscopy
Get the awesome free Virtual Electron Microscope, or send off some samples to be scanned for nowt, from here or here.
BBC Cell Series
Dr Adam Rutherford presents Cell, a three-part series on the history and great discoveries in cell biology. WhyEvolutionIsTrue has HD-quality full episodes here:
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ToK issues and ideas of academic honesty abound in the series.
What is life and where does it come from?
How do we know that living things are made of cells?
What motivated (and still motivates) the great discoveries?
How and why did Virchow plagiarise Remak’s work on cell division?
What are the ethics of new and future developments in cell biology?
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*More downloads also available from RapidShare.
Super slo-mo bullet impacts and the fastest punch in the world; or, Why I want a 1000fps camera*.
With over 1.5 million views and counting, check out this super high-speed motion capture of bullets penetrating various substrates, by the measuring equipment company Kurrzeit.
Beyond the traditional measuring methods of Science and Engineering, high-quality, high-speed video allows for more detail and study of dynamic processes. We can see moments of impact or reaction, faster-than-the-eye phenomena and amazing natural events in detail and analyse them.
Check out this short clip of the fastest punch on Earth – the Mantis Shrimp. The strike through water is so fast that the water around it is boiled due to the pressure, and the impact is so hard that it looks as though the carapace (shell) of the crab is momentarily liqeufied. Read more about the mantis shrimp punch at NotRocketScience.
Stay tuned for more high-speed science videos.
*I don’t really, but would love it if you made a donation to charity through Biology4Good, my list on give4good.
i-Biology 