Cambridge Progression Test Stage 8 Science 2025 Paper 1

1. Human body and forces: joint types and muscle pairs (hinge, ball and socket, antagonistic), force distribution and pressure, average speed calculation
2. Atomic structure and bonding: proton/electron charges, electrostatic attraction in atom, chromatography setup and Rf calculation, ink separation analysis
3. Ecology and pollution: bioaccumulation in food chains (Minamata disease), predator-prey relationships, dichotomous key completion, ecosystem identification
4. Space science: asteroid vs planet identification based on orbit and size, asteroid formation, Solar System object classification (e.g. Hale-Bopp as comet)
5. Energy and physics: magnetism and Earth′s magnetic field analogy, angle of incidence and reflection, experimental method improvement
6. Scientific skills: interpreting concentration from table, selecting fair samples, climate data bias, respiration equation, comparison of experimental evidence for reactivity and electromagnet construction