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D4.3 Climate change - revision quiz
This test contains a set of revision questions to use in preparation for assessed on this topic. There are several question styles and answers with explanations....
Activities
Eutrophication & Biomagnification (2025)
Biomagnification is the process where pollutants become concentrated in the tissues of organisms at higher trophic levels. In this activity students analyse and explain some simple data from a food chain...
Activities
Action potentials (2025) Free
Neurons can propagate impulses down the axon at speeds over 300 km/h. The speed of the action potential can vary due to different factors such as myelination and axon diameter. These will be discussed...
Activities
Action potentials - model answers
These are suggested model answers for the activity Speed of action potentials data questions worksheet As model answers they don't cover all the possible options for correct responses, but they provide...
Assessment
Exemplar IA - Bending and breathing
The Individual Investigation is probably the most important single piece of work in the DP Biology course. This page contains and example IA and by following the activity you learn to identify the different...
Activities
Sustainability
This lesson includes a simulation of the importance of keystone species in ecosystem communities, and then a case study of sustainable fisheries, and some interesting videos about improvements to agriculture...
Assessment - introduction
12 Investigation ideas with a biological twist. Free
Germination experiments and simple osmosis labs are seen all too often by moderators. If you want to show real personal engagement then your investigation has to have a 'twist' that shows you have really...
Assessment - introduction
16 new experiment ideas for Biology IA Free
This is a neat idea to immobilise algae in alginate beads and use them to investigate photosynthesis rate. The concentration of carbon dioxide in the solution can be measured using a data logger or an...
Assessment - introduction
6 Ecological ideas for your IA
There has never been a time with so much environmental activism, #ClimateStrikeOnline, Extinction Rebellion, Greenpeace, Ecosia, Friends of the Earth, COP, CITES, and so many more projects that are too...
Assessment - introduction
IA experiment ideas inspired by Youtube Free
IB Biology students sometimes has difficulty finding a topic of interest for their IA.This is meant to be an individual project and before embarking on a10 hours of work it would be best to find something...