Author Archives: Mr Cartlidge

About Mr Cartlidge

Mr Cartlidge teaches Science to the wonderful students at the Australian International School, Viet Nam. He is also the Head of Senior School and IBDP Coordinator.

Cell Structure

Powerpoint cells and levels, click bio from Magdalena Ravagnan

GCSE Bitesize – Cell Activity – covers animal & plant cells, movement in & out of cells & cell division (18m). Science in Focus – Cell Biology – a 19m video.

How about seeing some real cells in action? Here is a Trachelius ciliate feeding on a Campanella ciliate, and here is a Paramecium feeding:

Science Bank 9 (Cells & Tissues): Part 1- Animal Cells (to 4m 25s); Part 2 – Plant Cells (to 9m 10s); you do not need Part 3.

A short video from The Virtual School about cells & specialised cells:

For self-assessment questions, with exercises and discussions, just click on the correct topic at Biology GCSE & IGCSE Question Bank. Powerpoints can be downloaded from the same site here. The s-cool revision site lets you revise the topic, summarizes the topic & tests you on it. Skoool gives you a lesson, including progress questions, for each Biology topic but you’ll need sound on for it. 

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Just click to enlarge (thank you LadyofHats).

 

 

 

A lesson on How to Calculate Magnification from Ms Cooper:

Cell Transport

Ks4 movement in and out of cells from SUSAN MATHEW

Topic 3 revision notes in downloadable word format.

Mr Andersen (from Bozeman High) gives a brief description of osmosis:

A lesson on Osmosis from Mr Dare:

GCSE Bitesize – Diffusion & Osmosis – a 4m 24s video and Bitesize Top 20 Demos: Osmosis (3m 44s).

Mr W’s Osmosis! rap:

And here’s a long powerpoint:

Osmosis Gummy Bear Lesson PowerPoint, Cell Biology, Cell Transport from www.sciencepowerpoint.com

Here is another presentation, covering the effect of osmosis on cells:

Effects of isotonic, hypotonic & hypertonic solutions on cells from j3di79

OSMOLARITY PRACTICAL:

Here are 3 great videos: estimation of osmolarity from Stephanie Castle; Mr Andersen talks us through an osmosis practical; and osmosis in potato strips from Bio Lab.

ACTIVE TRANSPORT:

A lesson from Mr Dare:

Cell Division (mitosis & meiosis)

Mitosis (in english). And here is Mitosis in american & mitosis – a 2m 45 s vid from Bitesize Top 20 Demos. Also here is What is Mitosis? (a 3m 45s lesson) & Mitosis music video by Peter Weatherall (2m 7s).

Here is Meiosis in american (and in more detail than you need).

Science Bank 9 (Cells & Tissues): Part 3 (from 9m 15s) also covers Mitosis & Meiosis. As does Cell Division (a 2m 3s vid from BBC iScience) & Cell Division (a 5m 23s vid from GCSE Bitesize).

17.3 & 17.4 revision notes in downloadable word format.

Genetics

A short, simple explanation of Gregor Mendel’s work and simple gentetic crosses:

17.5 Inheritance notes in downloadable word format; to be completed.

GCSE Bitesize – Inheritance, a tutorial (4m 46s):

BBC Short Circuit Genetics – a 19m video.

Genetic Diseases

Here are some videos about genetic diseases: Sam’s story (cystic fibrosis) & CF short movie; sickle cell anaemia; what is Huntington’s disease?

Pedigree analysis

Genetics pedigree problems from callr

Evolution (variation & selection)

VARIATION

It’s coming!

ADAPTIVE FEATURES

A lesson in Plant Adaptations from Ms Cooper (12m 15s); Specialized Leaves, a short 1m 39s video.

NATURAL SELECTION

The Evolution of Life on Earth in 24 hours:

What is Evolution? A 9m video from Stated Clearly:

What is Natural Selection? A 9m video from Stated Clearly:

How evolution works – a gentle 12m cartoon video (from Kurz Gesagt – in a nutshell) and here is Natural Selection made easy in a 9m 48s video (from potholer54).

A simulation of Natural Selection:

Click to Run

 

Here’s Darwin’s Song from Horrible Histories and in What is Evolution? Biology teacher Ceri Evans gives a master class to students on what he says is arguably the greatest idea anybody ever had: evolution (28 mins). 2 more videos – James May’s things you need to know – Evolution (29m) & BBC Short Circuit Theory of Evolution (19m).

Finally, just for interest, a short (less than 5 minute) video clip from BBC iScience – Evolution of the Eye.

SELECTIVE BREEDING (ARTIFICAIL SELECTION)

This powerpoint covers Artificial Selection (selective breeding) – but we only need the first five slides:

Igcse biology edexcel 5.10 5.20 from Marcos Rodriguez

A lesson on Selective Breeding from Mr Dare:

Internal Assessment (IA)

Great advice about the new Internal Assessment (IA) from OSC.

How to write an excellent IB Practical Report (a 3m 31s video).

Two great powerpoints from Mr Exham:

Mr Exham’s Guide to writing up a Biology Practical Investigation from mrexham

IB Biology Guide to the IA Coursework from mrexham

BioKnowledgy – Understanding The IA Criteria And The Marking Rubric from Chris Paine

Uncertainty and equipment error from Chris Paine

Calculating Uncertainties from mrjdfield

Precision in processed data from Chris Paine

Spurious correlations

The Extended Essay

Extended essay intro from Jennifer Gaither

Great Extended Essay tips from Wikibooks and here is Extended Essay Central for exemplars, essays by previous students, examiner reports, subject guides and information for supervisors and students. Also general EE advice from iBiology and Bioknowledgy (this one is more specific to the Sciences).

Here is the IB guide to Extended Essays – read the advice and the subject specific details. Want to explain what the Extended Essay is to your parents? – then go here.

Science subject specific_guidelines (1) from Jennifer Gaither

CITING & REFFERENCING

Referencing advice from UWSEA here.

How to create a bibliography and cite in word – here is a link to instructions or downloadable instructions: how-to-create-bibliographies-citations-in-word or instructions in a 5m YouTube video.

Citation Machine will automatically generate citations in MLA, APA, Chigaco, Turabian, and Harvard. We tend to use Modern Language Association (MLA) style and here is how you do that:

Citing Sources from jskotnicki

How to recognise plagiarism: an excellent tutorial. Can you pass the test?

Academic honesty in ib from cartlidge

RESEARCH

Looking for research papers? Here are two great sites, which you have to pay to join:  Questia and Ebsco.

The Nature of Science

Thank you, Hank. And here is the Nature of Science from the Amoeba sisters; The Scientific method: steps, terms and examples from Study.com; the scientific method from Teacher’s Pet.

Fact vs Theory vs Hypothesis vs Law explained in 7m and: