IB Biology A1.1 Water (First exams in 2025) FREE TASTER LESSON

FREE TASTER LESSON, please see my shop for high quality paid resources.

This PowerPoint contains everything you need to teach the A1.1 water in the new IB Biology specification for both HL and SL.

This Powerpoint consists of 43 slides and contains the following:

Starter task
All information is clearly presented
Student tasks with answers
All key terms
Notes for students
Exam style questions with answers
Student checklist (great for revision at the end of the unit)
The following content is covered:

A1.1: Water as a medium of life
A1.2: Hydrogen bonds are a consequence of polar covalent bonds within a water molecule.
A1.3: Cohesion of water molecules due to hydrogen bonds and the consequences for organisms
A1.4: Adhesion of water molecules to polar or charged materials and the impact for organisms.
A1.5: Solvent properties of water linked to its role as a medium for metabolism and transport in plants and animals
A1.6: Physical properties of water and the consequences for animals in aquatic habitats.
A1.7: Extraplanetary origins of water on Earth and reasons for it´s retention (HL ONLY)
A1.8: Relationship between the search for extra-terrestrial life and the presence of water (HL ONLY)