Archive for August, 2009

Great presentation on digestion

Friday, August 14th, 2009

Here is a link to a fantastic presentation on Topic 6.1 (Digestion).¬† Well worth a look ūüôā

“The dog ate it” – digestion homework

Thursday, August 13th, 2009

My dog ate my homework by on flickrDescribe the route taken by a ham, cheese and lettuce sandwich through the human digestive system, explaining what happens to each part of the sandwich as it passes through each region of the digestive tract.                  [20 marks]



Complete and correct route given               [4]

Digestion of bread                                       [4]

Digestion of ham                                         [4]

Digestion of cheese                                     [4]

Digestion of lettuce                                     [2]

Bibliography in MLA format                          [2]

This assignment is due on THURSDAY 20th AUGUST for both B block and F block students.¬† NOTE: F block students don’t have class on this day, but Friday is a holiday.¬† You may submit either a hard copy to me, or soft copy via email.

Linkage and recombinants

Thursday, August 13th, 2009

Here is the document we worked through in class today, with some extra bits on meiosis too.  Thanks to Mr. Boulton for the resource. Topic 10 notes

Measuring challenge

Wednesday, August 12th, 2009

Next lesson you will have a number of challenges to complete to help you practice choosing suitable apparatus and recording accurate measurements.  You can start thinking about them now:

1. Find the thickness of a microscope slide.

2. Which is longer – the circumference of a coke can, or the height?

3. Find the volume of a stone.

4. Find the mass of one paperclip.

5. Find how long it takes for a pingpong ball to hit the ground from a height of 1m.

6. Produce a beaker of water at 35¬įC.

Topic 10 Syllabus outline

Tuesday, August 11th, 2009
Genetics by Here's Kate on flickr

Genetics by Here's Kate on flickr

Here is the syllabus guide for Topic 10 Рthe HL stuff on meiosis and genetics.    IB Biology HL Topic 10 Рsyllabus guide

It should help you prepare for your test NEXT WEEK.  Mark your diaries РThurs 20th August.  The majority of the questions will be on Topic 10, but I reserve the right to throw in a few from Topic 4 РSyllabus outline (SL genetics) for good measure.  Format will be IB past paper questions, both multiple choice and short answer.


Tuesday, August 11th, 2009

Can you explain the difference between accuracy and precision?

Do you know what SI units are?

Do you know the SI units for length, time and mass?

Can you choose the appropriate number of significant figures to use in calculations?

The answers to these questions, and more, on this short video.

Digestive system

Tuesday, August 11th, 2009

digestive systemTo follow up from today’s lesson, the relevant section in your textbook is on pages 203-209, Chapter 19.¬† I suggest you find time to read through it this week.¬†

To get ready for the dissection later this week, here are some links for you to look at.  This one has a nice picture for you and this one is interactive.

Image from

Here is a useful powerpoint for reviewing the topic. 6.1 Digestion Thanks to Mr. Hobbins!

Dihybrid crosses

Monday, August 10th, 2009

Here are some good sites for information about dihybrid crosses.  There are also lots of practice problems to try.  We will use these in class on Tuesday.

1. This site has a lot of clear information and activities.  A good starting point.

2.  This site has several problems for you to work through with nice hints to help if you get stuck.

3.  The Biology Project from the University of Arizona is always worth a look, although it is quite advanced.

Topic 6 Human Physiology syllabus guide

Monday, August 10th, 2009

Several of you were asking for the syllabus guide for our new unit.  Here it is. Topic 6 Рsyllabus outline

Read through your notes on the digestive system and cross reference your textbook for clarification.  Come and see me in tutorials if there is anything you need help with.


Monday, August 10th, 2009
Is he a safe scientist?

Is he a safe scientist?

Both Block D and H classes have made a good start on their glogster posters.  Homework is to finish them up and submit to me, either via this site or via email, the URL of your poster.   Glogster Poster Rubric 

You may also like to print out a copy for display in the lab.  There was some good evidence of creativity happening. 

Don’t forget to come and see me this week during tutorials if you need help.¬† Tues/Thurs/Fri 2.30 in room 1091.