4.1 Building blocks 4.1.1 States of matter Spec ref. Summary of the Learning outcomes Suggested Opportunities to develop Opportunities to apply Self/peer assessment specification content timing scientific communication and practical and enquiry Opportunities and What most candidates should (hours) mathematical skills skills resources be able to do Reference to past questions that indicate success 4.1.1.1 The three states of Recall and explain the main 1 Building blocks circus to help If you have a kinetic – matter are solid, liquid features of the particle pupils deduce the over-arching model, you can use it to and gas. Melting and model in terms of the states for this unit. demonstrate the motion freezing take place at of matter and change of of particles in a Pupils choreograph the melting point, boiling state, distinguishing liquid/gas. Or use a tray showing particles in a and condensing take between physical and filled with ping-pong substance such as water, as it place at the boiling chemical changes. balls and shake it. You changes state. point. can vary the number of (HT only) Explain the What is the difference between ping-pong balls to The three states of limitations of the particle melting and dissolving? demonstrate the three matter can be model in relation to states. WS 1.2 represented by a simple changes of state when model. In this model, particles are represented New Horizons Pluto. – Recognise/draw simple particles are by inelastic spheres. 'Exotic ices' have been diagrams to model the represented by small discovered on Pluto – difference between substances solid spheres. Particle what might this mean? in the solid, liquid and gas theory can help to states. Discussion question: Is explain melting, boiling, baking a cake Describe and explain the freezing and chemistry? different particle arrangements condensing. in solids, liquids and gases (HT only) Limitations of due to the bonds between the the simple model atoms. include that there are no forces between the spheres, and that
4.1 Building blocks 4.1.1 States of matter Spec ref. Summary of the specification content Learning outcomes What most candidates should be able to do Suggested timing (hours) Opportunities to develop scientific communication and mathematical skills Opportunities to apply practical and enquiry skills Self/peer assessment Opportunities and resources Reference to past questions that indicate success 4.1.1.1 The three states of matter are solid, liquid and gas. Melting and freezing take place at the melting point, boiling and condensing take place at the boiling point. The three states of matter can be represented by a simple model. In this model, particles are represented by small solid spheres. Particle theory can help to explain melting, boiling, freezing and condensing. (HT only) Limitations of the simple model include that there are no forces between the spheres, and that Recall and explain the main features of the particle model in terms of the states of matter and change of state, distinguishing between physical and chemical changes. (HT only) Explain the limitations of the particle model in relation to changes of state when particles are represented by inelastic spheres. 1 Building blocks circus – to help pupils deduce the over-arching for this unit. Pupils choreograph showing particles in a substance such as water, as it changes state. What is the difference between melting and dissolving? WS 1.2 Recognise/draw simple diagrams to model the difference between substances in the solid, liquid and gas states. Describe and explain the different particle arrangements in solids, liquids and gases due to the bonds between the atoms. If you have a kinetic model, you can use it to demonstrate the motion of particles in a liquid/gas. Or use a tray filled with ping-pong balls and shake it. You can vary the number of ping-pong balls to demonstrate the three states. New Horizons – Pluto. 'Exotic ices' have been discovered on Pluto – what might this mean? Discussion question: Is baking a cake chemistry?
AQA-8465-SOW-BBLOCK.DOCX