Cambridge Progression Test Stage 4 Science 2022 Paper 2 With Mark Scheme

1. Energy and changes: heat transfer from source to pan and water, energy conservation, phase changes (melting as physical process), chemical reaction inflates balloon, Sun at center of Solar System
2. Electricity and circuits: effect of adding batteries, identifying open/closed circuits, effect of cutting wire, labeling parts, fair test principle
3. Living things and health: dengue fever spread by mosquito, vaccination as prevention, food chains (producers, herbivores, carnivores), muscle action in arm movement
4. Earth and space: Earth’s structure (core, mantle, crust), earthquake model with jelly (limitations, simulated motion), fossil-containing rocks and properties
5. Particle model and states: solids vs. liquids (closeness, arrangement, motion), temperature measurement using thermometer, volume of melted ice over time
6. Adaptation and ecosystems: mosquito movement and feeding, number of predators in a food chain, environmental models, animal structures and responses to events