7J

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 * Unit 7J: Electrical circuits 3 weeks **
 * ** Topic 1: Electricity ** ||
 * Learning objectives || Learning strategies - p 245 || Resources ||
 * * Describe the difference between conductors and insulators.
 * Recall some rules that help you to use electricity safely.
 * Describe what is needed to make a current flow and how to measure current.
 * Describe how the resistance of a circuit affects the current. || * Starter: ideas about circuits
 * Book p 133: read and answer all questions
 * Drawing circuit diagrams – worksheet 7Ja (5)
 * Book p 136-137: read and answer all questions
 * Practical: current and resistance
 * Current in a circuit – AT video
 * Plenary: Quick check
 * HW: worksheets

Identify dangerous examples, Build a circuit, 2 bulbs, ammeter and cell. Give w/s to complete with no help. Class issued with 50$ per group, changed 10$ for each question they ask. Exception is to explain ammeters need to be connected +ve to +ve and -ve to -ve. || * Exploring Science Year 7 text
 * AT
 * Equipment and materials for current and resistance investigation
 * Quick check 7Ja
 * Worksheets: 7Ja (5) for circuit diagrams
 * Other worksheets: see below ||
 * Connections:
 * IGCSE physics section || Assessment:
 * Plenary: Quick check || Support/extension:
 * Access: worksheet 7Ja (1) and (2)
 * Must: 7Ja (6)
 * Worksheets 7Ja (7) (most) or (8) (some) ||


 * ** Topic 2: Using electricity ** ||
 * Learning objectives || Learning strategies – p 249 || Resources ||
 * * Describe what happens to wires when electricity flows through them.
 * Explain why fuses are used.
 * Explain what fuses are.
 * Describe how to choose the correct fuse for an appliance. || * Starter: heating effect of a current
 * Demo resistance wire with 12V pack glowing so hot it cuts paper and styrofoam. Also melting / reacting steel wool.
 * Electrical appliances: worksheet 7Jb (6)
 * Book p 138-139: read and answer all questions
 * A fuse – AT video
 * Wiring a plug – AT presentation
 * Plenary: quick check
 * HWK: worksheets || * Exploring Science Year 7 text
 * Quick check 7Jb
 * Worksheet 7Jb (6)
 * AT
 * Other worksheets: see below ||
 * Connections:
 * IGCSE physics section || Assessment:
 * Plenary: quick check || Support/extension:
 * Access: worksheet 7Jb (1)
 * Must: 7Jb (8)
 * Worksheets 7Jb (9) (most) or (10) (some) ||

Also
 * ** Topic 3: Model circuits ** ||
 * Learning objectives || Learning strategies – p 253 || Resources ||
 * * Describe what an electric current is.
 * Explain why models are useful to help us think about electricity.
 * Describe how a central heating system is similar to a simple electrical circuit.
 * Explain how an obstacle race can help us to think about resistance. || * Starter: brainstorm electricity
 * Electricity models card sort
 * Book p 141-142: read and answer all questions
 * A switch – AT presentation
 * Which model is helpful – AT presentation
 * Plenary: Quick check
 * Plenary: brainstorming revisited
 * HW: worksheets

Electrons carry energy and and don't get used up. Create a path/loop students can follow in the room - include a table then have to climb over. Each pupil is an electron. One student a cell who give a small bit of paper to each electron as they pass (energy). One pupil is a light bulb standing on the table. Pupils move over table (resistance) giving paper to the bulb. They they continue round. || * Exploring Science Year 7 text
 * AT
 * Quick check 7Jc
 * Worksheet 7Jc (2) for card sort
 * Other worksheets: see below ||
 * Connections:
 * IGCSE physics section || Assessment:
 * Plenary: Quick check
 * Plenary: brainstorming revisited || Support/extension:
 * Access: worksheet 7Jc (1)
 * Must: 7Jc (3)
 * Worksheets 7Ie (4) (most) or (5) (some) ||

Also
 * ** Topic 4: Series and parallel ** ||
 * Learning objectives || Learning strategies – p 256 || Resources ||
 * * Describe the difference between series and parallel circuits.
 * Explain how switches can control parallel circuits.
 * Recall why parallel circuits are used.
 * Explain what happens to the current in a parallel circuit. || * Starter: Spot the difference – worksheet 7Jd (4)
 * Practical: investigating parallel circuits
 * Another model for current – worksheet 7Jd (5)
 * Book p 142-143: read and answer all questions
 * Current in series and parallel circuits – AT presentation
 * Circuit diagrams – electronic sheet
 * HW: worksheets

Once defined, pupils to use PHET to make parallel and series circuit and explain what happens if a bulb breaks in each of them. Extra - make circuit for car head lamps. Build real circuits from 7Jd3 and complete w/s.  || * Exploring Science Year 7 text
 * Equipment, materials and worksheet 7Jd (3) for parallel circuits
 * AT
 * Quick check 7Jd
 * Worksheets: 7Jd(4) and 7Jd(5)
 * weblink: @http://phet.colorado.edu/en/simulation/circuit-construction-kit-dc
 * Other worksheets: see below ||
 * Connections:
 * IGCSE physics sections || Assessment:
 * Plenary: Quick check || Support/extension:
 * Access: worksheet 7Jd (1)
 * Must: 7Jd (6)
 * Worksheets 7Jd (7) (most) or (8) (some) ||


 * ** Topic 5: Electricity and you ** ||
 * Learning objectives || Learning strategies – p 259 || Resources ||
 * * Recall how messages are carried in our bodies.
 * Explain why it is dangerous to touch electrical equipment with wet hands.
 * Describe what large electric currents can do to the body.
 * Recall ways in which electricity can be used to help patients.
 * Exploring Science Year 7 text
 * Equipment and materials for making a home made cell
 * Quick check 7Je || * Starter: electricity shock brainstorming
 * Book p 144-145: read and answer all questions
 * Book p 146-147: read and answer all questions
 * Practical: a home made cell
 * Plenary: Quick check
 * HW: revise for test || * Exploring Science Year 7 text
 * Equipment and materials for making a home made cell
 * Quick check 7Je ||
 * Connections:
 * IGCSE physics || Assessment:
 * End of unit test || Support/extension:
 * Access: worksheet 7Je (1) and (2)
 * Must: 7Je (3)
 * Worksheets 7Je (4) (most) or (5) (some) ||