Organisation resources
Biology, grade 8. Notes, worksheets, videos, interactive tools and revision materials for this chapter.
Notes
Study notes
The chapter's lessons are the notes — read them in order, then use the resources below.
01Levels of OrganisationBuild the hierarchy from cells to tissues, organs and organ systems.Read lesson →02The Digestive SystemTrace food through the gut and learn how nutrients reach the blood.Read lesson →03Heart and CirculationExplore the double circulatory system and how blood moves around the body.Read lesson →04Enzymes in DigestionMeet amylase, protease and lipase and see how enzymes speed up digestion.Read lesson →
Worksheets
Practice worksheet
Attempt every question before revealing the answer — that struggle is where learning happens.
Practice questions live inside each lesson — work through them there, then return for revision.
Videos
Watch and learn
Hand-picked searches to find a clear video explanation of each lesson.
Revision
Revision checklist
Can you explain each of these out loud, without looking? If not, re-read that lesson.
- Levels of Organisation: Build the hierarchy from cells to tissues, organs and organ systems.
- The Digestive System: Trace food through the gut and learn how nutrients reach the blood.
- Heart and Circulation: Explore the double circulatory system and how blood moves around the body.
- Enzymes in Digestion: Meet amylase, protease and lipase and see how enzymes speed up digestion.
- Read each lesson's summary and re-do its practice questions from memory.