DATE: 22/11/2022 TITLE: The Particle Model Answer these questions in full sentences. If you don’t know the answer, copy out the question: Last lesson 1.The three states of matter are _______, ______ and _______ 2. Which state has particles that are far apart? Last week 3. What is the equation for speed? 4. What is the equation for weight? Last month 5. Forces work in pairs called ______ ______ 6. Which piece of equipment measures a force? Last year 7. Which type of variable is measured? 8. Which type of variable is changed? DATE: 22/11/2022 TITLE: The Particle Model Answer these questions in full sentences. If you don’t know the answer, copy out the question: Last lesson Last week Last month Last year 1.The three states of matter are solids, liquids and gases 2. Which state has particles that are far apart? Gas 3. What is the equation for speed? Speed = Distance/Time 4. What is the equation for weight? Weight = Mass x Gravitational field strength 5. Forces work in pairs called interaction pairs 6. Which piece of equipment measures a force? Newtonmeter 7. Which type of variable is measured? Dependent 8. Which type of variable is changed? Independent U5 Lesson Content - The particle model - States of matter - Melting and freezing - Boiling - More changes of state - Diffusion - Gas pressure - Inside particles - Pure substances and mixtures - Solutions - Solubility - Filtration - Evaporation and distillation - Chromatography Previous Learning - Properties of materials and separating mixtures Future Learning - Particle model at GCSE Matter [7] Skills Focus Construct explanations - Develop an explanation. - Communicate your idea, evidence and reasoning. Key Terms - Boiling point - Condensation - Compound - Diffusion - Evaporation - Mixture - Melting point - Molecule - Particle - Solution Home Learning Assessment End of chapter test [30 marks] When do I do it? It is set and due on ClassCharts SCIENCE Homework What is it? You will be set 1 quiz every week on Educake Year Day 7 Tue 8 Tue 9 Mon 10 Tue How do I complete it? 11 Tue You must achieve at least 80% for your homework to be ‘completed’ How do I do it? download the ‘educake' app or go to www.educake.co.uk You can re-do the quiz many times (using a web browser) Need help? Need help logging in or completing the homework? Why am I doing it? It WILL help you learn! Go to room 111 Monday break & lunch or ask your science teacher Your teachers will award you praise Particle Theory 7 Particles in a Solid Closely packed. Regular arrangement. Strong forces. Fixed positions They don’t move, only vibrate. The particles do not have much energy. 8 Particles in a Liquid Closely packed. Irregular arrangement. Weaker forces. Particles can move. Random directions. Low speed. 9 Particles in a Gas Far apart. Almost no forces. High speeds and in random directions. More energy. 10 Independent Practice. Questions on our learning Explain these properties by stating the key points about the particles. 1)Why can gases be compressed? 2)Why can solids keep their shape? 3)Why do liquids flow? 4)Why do gases spread out quickly? 5)Why can’t liquids be compressed? 14 Independent Practice. 1)Why can gases be compressed? Particles are far apart 2) Why can solids keep their shape? Particles are in fixed positions with strong forces between them. 3) Why do liquids flow? Particles can move around each other. 4) Why do gases spread out quickly? Particles have lots of energy and move quickly in all directions. 5) Why can’t liquids be compressed? Particles are already closely packed. 15
