4th Sep '25

Schemes of Work

4C
- 4C.1
 - Lesson 01 - How is a physical and chemical change different? Lesson Plan Lesson Title
 - The use of word and symbol equations should be used throughout the scheme.
 - W: Physical changes are changes of state. - KS3.P.54
 - Suggested Activity:
 Recall changes of states.
 - D: Physical changes occur when particles are rearranged, but not change themselves. - KS3.P.54
 - Suggested Activity:
 Role play changes of state, with pupils as atoms.
 
 With homogenous couples (boys with boys, girls with girls or blazers on/off) as molecules. They do not change partners.
 - Chemical changes occur when the make up of individual particles change. - KS3.P.54
 - Suggested Activity:
 Role play changes of state, with pupils as atoms.
 
 With homogenous couples (boys with boys, girls with girls or blazers on/off) as molecules.
 
 Pupils swap partners to form heterogeneous couples.
 
 Discuss what had to happen for the them to swap partners - Come close (collide)
 - T: Chemical reactions result from the rearrangement of atoms - KS3.C.12
 - Suggested Activity:
 Learn the chant:
 - Molecules (Hands make fists)
 - Collide (Bag fists together twice, sticking together the second time)
 - Split (Spread fingers out)
 - Rearrange (Slide hands one in front of the other, then the other way round
 - Bond (interlock fingers)
 - Become a new substance (roll hands to 'present' new substance)
 - Suggested Activity:
 Liken role play to the incorrect:
 Hydrogen plus Oxygen -> Hydrogen Oxide
 
 H2 plus O2 -> 2HO
 
 If this was a marriage then the women (non-metal) changes the end of her name. (Hydrogen is pretending to be a metal)
 
 Then repeat role play to correct
 
 2H2 plus O2 -> H2O
 - T: Chemicals that react are call Reactants.
 - T: Chemicals that are produce are call Products.
 - A: The difference between chemical and physical changes. - KS3.P.54
 - Suggested Activity:
 Draw particle diagrams to show physical changes and chemical changes.
 - Lesson 02 - What happens to the atoms in a chemical reaction? Lesson Plan Lesson Title
 - D: Chemical reactions result from the rearrangement of atoms - KS3.C.12
 - Suggested Activity:
 Demo: Lead Iodide and Potassium Nitrate
 
 .
 
 Discuss (Think-Pair-Share) what is happening using vocab and ideas from previous lesson.
 Equipment Required:
 Lead Iodide and Potassium Nitrate
 
 one set for demo
 - W: Learn the signs of chemical reactions:
 1. Change of colour
 2. Formation of gas
 3. Formation of precipitate
 4. Change of temperature (energy released)
 - A: Representing chemical reactions using word equations.
 - Suggested Activity:
 Complete the following word equation:
 
 Lead Iodide 'plus' Potassium Nitrate 'becomes' ->
 - D: There is a 'Conservation of mass' during chemical reactions as atoms are rearranged not destroyed. - KS3.C.06
 - Suggested Activity:
 Lead Iodide and Potassium Nitrate:
 
 http://www.rsc.org/learn-chemistry/content/filerepository/CMP/00/000/515/cce-61.pdf
 Equipment Required:
 Jewelry balance (0.01g).
 Potassium iodide solution 0.01 mol dm^–3
 Lead nitrate solution 0.009 mol dm^–3
 - Representing chemical reactions using formulae and using equations. - KS3.C.13
 - Suggested Activity:
 Draw particle diagram for reaction under word equation.
 
 Write symbol equation using formulae under particle diagram.
 - Lesson 03 - Why is combustion an oxidation reaction? Lesson Plan Lesson Title
 - Combustion is the chemical reaction of burning. - KS3.C.14
 - During combustion the fuel joins with oxygen. - KS3.C.14
 - Suggested Activity:
 Fire Triangle.
 Extinguish a candle in a upturned beaker.
 Equipment Required:
 Candle
 Large beaker
 Plastercine
 - W: Combustion is an oxidation reaction. - KS3.C.14
 - Rusting is another example of an oxidation reaction - KS3.C.14
 - Tarnish of metals is oxidation. - KS3.C.14
 - Suggested Activity:
 Heating metal folded metal foils.
 The outside will tarnish, the inside does not.
 Equipment Required:
 Aluminium foil 10 x 10 cm class set. doesnt work
 - Lesson 04 - What happens to the energy in a chemical reaction? Lesson Plan Lesson Title
 - Exothermic chemical reactions give out heat, warming the surroundings. They feel hot. - KS3.C.21
 - Suggested Activity:
 http://www.rsc.org/learn-chemistry/resource/res00000406/exothermic-or-endothermic?cmpid=CMP00005103
 Equipment Required:
 Copper(II) Sulfate solution
 Magnesium Pow.
 Magnesium Rib.
 Dilute Hydrochloric Acid
 solution
 Sodium hydroxide
 Dilute sulphric acid
 Thermometer
 Polystyrene cups
 10ml cylinders
 pipettes
 forceps
 - Endothermic chemical reactions take in heat, cooling the surroundings. They feel cold. - KS3.C.21
 - Suggested Activity:
 http://www.rsc.org/learn-chemistry/resource/res00000406/exothermic-or-endothermic?cmpid=CMP00005103
 Equipment Required:
 Sodium hydrogencarbonate Citric Acid
 Thermometer
 Polystyrene cups 10ml cylinders
 - Lesson 05 - What happens during 'Thermal Decomposition' reactions? Lesson Plan Lesson Title
 - In thermal decomposition reactions, large molecules break down into smaller molecules when heated. - KS3.C.14
 - Suggested Activity:
 Heating Carbonates
 
 Only demo unless class will be able to complete it without suck back happening.
 
 Use boiling tubes rather that test tubes as we have large diameter delivery tubes.
 
 http://www.rsc.org/learn-chemistry/resource/res00000450/thermal-decomposition-of-metal-carbonates?cmpid=CMP00005971
 Equipment Required:
 Copper, Lead, Potassium, Sodium, Zinc Carbonates
 
 Boiling tubes (2 per setup)
 Delivery tubes
 Spatulas
 Lime water
 - Lesson 06 - What happens during Displacement reactions? Lesson Plan Lesson Title
 - T: In a displacement reaction, a more reactive chemical will take the place of less reactive chemical. - KS3.C.14
 - Suggested Activity:
 DEMO
 Thermite
 Equipment Required:
 http://science.cleapss.org.uk/Resource/SRA026-Thermite-reaction-in-flower-pots.pdf
 - W: Copper is more reactive than silver. - KS3.C.14
 - Suggested Activity:
 Copper wire in Silver nitrate.
 
 Smaller scale of
 http://thehomescientist.blogspot.co.uk/2010/04/experimehnt-silver-tree.html
 
 Clean copper wire with sand paper so it will react quickly.
 Equipment Required:
 Silver nitrate sol. copper wire.
 small cuvettes with lids.
 pipettes.
 ohp pens.
 - A: Use the writing frames to explain what is happening in reaction - KS3.C.14
- 4C.2
 - Lesson 07 - Enquiry: Planning and Data Collection Lesson Plan Lesson Title
 - PLANNING & DATA COLLECTION:
 Aim: To find out how the number drops of acid added affect the pH of the solution.
 - Suggested Activity:
 Micro titration - pipettes in clamp stands.
 Equipment Required:
 0.5M hcl
 0.5 sod hydroxide
 universal soln
 ph scales
 test tubes
 pipettes
 - Lesson 08 - Enquiry: Conclusions and Evaluations Lesson Plan Lesson Title
 - CONCLUSIONS and EVALUATION:
 Aim: To find out how the number drops of acid added affect the pH of the solution.
 - defining acids and alkalis in terms of neutralisation reactions - KS3.C.15
 - the pH scale for measuring acidity/alkalinity; and indicators - KS3.C.16
- 4C.3
 - Lesson 09 - Review of 4C.1 Lesson Plan Lesson Title
 - Review of 4C.1
 - Suggested Activity:
 https://www.mrcorfe.com/Hamble/Questions/4C.1
- 4C.4
 - Lesson 10 - What do catalysts do? Lesson Plan Lesson Title
 - Catalysts speed up a reaction without being used up themselves. - KS3.C.19
 - Suggested Activity:
 Hydrogen peroxide with catalysts.
 Demo
 
 http://www.rsc.org/learn-chemistry/resource/res00000831/hydrogen-peroxide-decomposition
 Equipment Required:
 DEMO Apparatus
 - 250 cm3
 cylinders – one for each catalyst to be used.
 - A tray to catch any foam that spills over the top of the cylinders.
 Stopwatch
 washing up liquid 1cm
 
 Chemicals
 The quantities given are for one demonstration.
 -25ml of 50 vol. hydrogen peroxide solution for each demo.
 - About 0.5 g of powdered manganese(IV) oxide (manganese dioxide, MnO2).
 - About 0.5 g of lead(IV) oxide (lead dioxide, PbO2).
 - About 0.5 g of iron(III) oxide (red iron oxide, Fe2O3).
 - A small piece of potato.
 - A small piece of liver.
 20Vol can be given for a slower reaction which is easier to time.
- 4C.5
 - Lesson 11 - POO Lesson Plan Lesson Title
 - Progress Observation Opportunity - KS3.C.19
 - Lesson 12 - Reflection Lesson Plan Lesson Title
 - Reflection - KS3.C.19