eBook
C4.2 Transfers of energy and matter - reading task
The sun is the principal source of energy in most ecosystems. This energy then gets passed from organism to organism through the different trophic levels of food chains and food webs as consumers eat...
Activities
Fertilization & blastocyst HL (2025)
Students watch short videos illustrating internal and external fertilization before studying the processes which take place during fertilization. There is an activity to sort the steps into the right...
eBook
A4.2 Conservation - 5 essential points
This is a '5 Essentials' revision (or review) sheet for Topic A4.2 Conservation of biodiversity. It will help students remember the five most important details required for the topic. SL and HL concepts...
eBook
A3.2 Classification - 5 essential points
This is a '5 Essentials' revision (or review) sheet for Topic A3.2 Classification and cladistics. It will help students remember the five most important details required for the topic. SL and HL concepts...
eBook
A3.1 Diversity - 5 Essential points
This is a '5 Essentials' revision (or review) sheet for Topic A3.1 Diversity of organisms. It will help students remember the five most important details required for the topic. SL and HL concepts in...
eBook
D1.3 Mutations - 5 Essential revision points
This is a '5 Essentials' revision (or review) sheet for Topic D1.3 Mutations and gene editing. It will help students remember the five most important details required for the topic. SL and HL - The...
eBook
A2.3 Viruses - 5 essential revision points
This is a '5 Essentials' revision (or review) sheet for Topic A2.3 Viruses. It will help students remember the five most important details required for the topic. SL and HL - This topic is only for...
eBook
D1.2 Protein synthesis - 5 Essential revision points
This is a '5 Essentials' revision (or review) sheet for Topic D1.2 Protein synthesis. It will help students remember the five most important details required for the topic. SL and HL concepts in the...
eBook
B1.1 Carbohydrates & lipids - 5 Essential revision points
This is a '5 Essentials' revision (or review) sheet for Topic B1.1 Carbohydrates & lipids. It will help students remember the five most important details required for the topic. SL and HL concepts in...
Activities
The lymphatic system & tissue fluid HL (2025)
The lymphatic system works in conjunction with the circulatory system. It plays a vital role in draining excess fluid from the body and well as its role in immunity. In this short series of activities,...