Cambridge Progression Test Stage 3 Science 2025 Paper 1

1. Plant Biology and Growth Conditions: Flower used for reproduction, stem transports water, leaf makes food; plants need light, air, and water to grow healthily.
2. Forces and Friction Investigation: Forcemeter measures pulling force; glass needs the least force, showing it’s the smoothest; friction is the force being tested.
3. States of Matter and Natural Materials: Bottle components: lid (solid), lemonade (liquid), air (gas); useful materials from rocks include coal and metals like iron.
4. Human Body and Organs: Scientific enquiry type = research; heart pumps blood, lungs help with breathing; organs have specific body functions.
5. Separation Techniques and Solutions: Filtration separates sand from water because sand is insoluble; salt dissolves in water forming a solution that looks clear.
6. Magnets, Fossils, and Light: Opposite poles attract, like poles repel; fossils are ancient remains, often from sea animals; opaque objects (e.g. chair) form shadows.