Hydrogen bonding and the forming of a snowflake

January 18, 2016

Water molecules are polar molecules, the electronegative  oxygen with two pairs of lone electrons providing a ‘slightly’ negative charge that acts with the ‘slightly’ positive hydrogen atoms to form the incredibly important hydrogen bonds,...

Adaptations of plants in deserts

November 20, 2015

When we think about plants and how they adapt to deserts what do we think? The video systematically reviews the desert environment and the ways in which plants have found a way to survive such inhospitable climates, together with animals which call it their home....

The falling leaves of Autumn

November 6, 2015

One of the most common questions I am asked when teaching plants is why do the leaves of deciduous trees change colour before they fall off in autumn. To answer that question I have come across this excellent video: [youtube id=”JWva5AaDkXw”] Within...

D.1 Human nutrition – essential nutrients

October 12, 2015

Not all nutrients required by the body, are synthesized by the body. An example of these are the essential and non-essential amino acids. Essential amino acids are those that are not synthezied and are therefore “essential” in our diet. FYI – You do...

Using a simulation for your IA

September 28, 2015

There are several options available to you when conducting your Internal Assessment as part of the Biology diploma. These include: 1.Hands-on experiment 2.Use of database for analysis and modelling 3.Extraction and graphical analysis from a database 4.Simulation...

TED talks / Google Science awards and the COOLing Earth

July 17, 2015

Biology at the micro level can often feel a conceptual study of processes that have been inferred from abstract data, such as the Kreb’s cycle or DNA replication. The following TED video offers a glimpse into the computer generated visualizations of the...