10 1 3/4 1.7 skills: Standard form and making estimates Consider the of particles. Use numbers in standard form to compare sizes. Use numbers in standard form in calculations. CM1.2 Worksheet; Technician’s notes; Presentation Quick starter Homework worksheet Homework quiz Video 10 1 3/4 Assessment End of chapter test Student Book End of chapter test Collins Connect Chapter 2: Elements, compounds and mixtures (28 lessons) 10 1 3/4 2.1 Key concept: Pure substances Describe, explain and exemplify processes of separation. Suggest separation and purification techniques for mixtures. Distinguish pure and impure substances using melting point and boiling point data. C2.1a, b Practical sheets 1 and 2; Worksheets 1 and 2; Technician’s notes 1 and 2 starter Homework worksheet Homework quiz 10 1 3/4 2.2 Relative formula mass Review the differences between the isotopes of an element. Distinguish between the mass of an atom and the relative atomic mass of an element. Use relative atomic masses to calculate relative formula masses. C2.1c Worksheets 1, 2 and 3; Technician’s Presentation Quick starter Homework worksheet Homework quiz 10 1 5/6 2.3 Mixtures Recognise that all substances are chemicals. Understand that mixtures can be separated into their components. Suggest suitable separation and purification techniques for mixtures. C2.1d Worksheets 1 and 2; Practical sheet; Technician’s notes Quick starter Homework worksheet Homework quiz 10 1 5/6 2.4 Formulations Identify formulations given appropriate information. Explain the particular purpose of each chemical in a mixture. Explain how quantities are carefully measured for formulation. C2.1e Worksheets 1 and 2 starter Homework worksheet Homework quiz
10 1 5/6 2.5 Chromatography Explain how to set up chromatography Distinguish pure from impure substances. Interpret chromatograms and calculate Rf values. C2.1f–k Practical sheet; Worksheet; Technician’s notes Quick starter Homework worksheet Homework quiz Video 10 1 5/6 2.6 Practical: Investigate how paper chromatography can be used in forensic science to identify an ink mixture used in a forgery Describe the safe and correct manipulation of chromatography apparatus and how accurate measurements are achieved. Make and record measurements used in chromatography. Calculate Rf values. PAG Practical sheets 1 and 2; Technician’s notes starter Homework worksheet Homework qu Quick starter Homework worksheet Homework quiz iz 10 1 5/6 2.7 skills: Use an appropriate number of significant figures Measure distances on chromatograms. Calculate Rf values. Record Rf values to an appropriate number of significant figures. CM2.1 Presentation Quick starter Homework worksheet Homework quiz 10 1 7/8 2.8 Comparing metals and non-metals Review the physical properties of metals and Compare the oxides of metals and of non-metals. Make predictions about unknown metals and C2.2a Worksheet; Practical sheet; Technician’s notes; Presentations 1 and 2 starter Homework worksheet Homework quiz 10 1 7/8 2.9 Electron structure Find out how electrons are arranged in atoms. Use diagrams and symbols to show which energy levels they occupy. Relate each element’s electron configuration to its position in the periodic table. C2.2c Worksheets 1, 2 and 3; Technician’s notes; Presentation Quick starter Homework worksheet Homework quiz 10 1 7/8 2.10 Metals and Explore the between electron configurations of elements and their properties. Find out what happens to the outer electrons when metals react. Draw diagrams to show how ions form. C2.2b Worksheets 1 and 2; Technician’s Quick starter Homework worksheet Homework quiz Video metals. metals.
10 1 9/10 2.17 Giant covalent structures Recognise giant covalent structures from diagrams. Explain the properties of giant covalent structures. Recognise the differences in different of carbon. Practical sheet; Worksheets 1 and 2; Technician’s notes Quick starter Homework worksheet Homework quiz 10 1 11/12 2.18 Polymer structures Recognise polymers from their unit formulae. Explain why some polymers can stretch. Explain why some plastics do not soften on heating. Practical sheet; Worksheet; Technician’s notes Quick starter Homework worksheet Homework quiz 10 1 11/12 2.19 Metallic bonding Describe that metals form giant structures. Explain how metal ions are held together. Explain the delocalisation of electrons. Practical sheet; Worksheets 1 and 2; Technician’s notes Quick starter Homework worksheet Homework quiz Video 10 1 11/12 2.20 Properties of metals and alloys Identify metal elements and their properties, and metal alloys. Describe the purpose of a tin–lead alloy. Explain why alloys have different properties to of elements. Practical sheet; Worksheets 1 and 2; Technician’s notes Quick starter Homework worksheet Homework quiz Slideshow 1 Slideshow 2 10 1 11/12 2.21 Key concept: The outer electrons Review the patterns in the periodic Compare the trends in Group 1 and 7. Relate these trends to the number of outer electrons and the sizes of atoms. Worksheet; Technician’s notes; Presentation Quick starter Homework worksheet Homework quiz 10 1 11/12 Assessment End of teaching block test Collins Connect 10 2 1/2 2.22 The periodic table Explain how the electronic structure of atoms follows a pattern. Recognise that the number of electrons in an element’s atoms outer shell corresponds to the element’s group number. Use the periodic table to make predictions. C2.2i Worksheets 1, 2 and 3; Presentation Quick starter Homework worksheet Homework quiz Video
Investigate how these temperature changes can be controlled. Graph plotters 1 and 2 10 2 7/8 3.11 Reaction profiles Use diagrams to show the energy changes during reactions. Show the difference between exothermic and endothermic reactions energy profiles. Find out why many reactions start only when energy or a catalyst is added. C3.2b, c Technician’s notes; Worksheets 1 and 2; Presentation Quick starter Homework worksheet Homework quiz Video 10 2 7/8 3.12 Energy change of reactions Identify the bonds broken and formed during a chemical reaction. Consider why some reactions are exothermic and others are endothermic. Use bond energies to calculate overall energy changes. C3.2d Technician’s Worksheets 1 and 2; Presentation Quick starter Homework worksheet Homework quiz 10 2 9/10 3.13 Maths skill: Recognise and use expressions in decimal form Read scales in integers and using decimals. Calculate the energy change during a reaction. Calculate energy transferred for comparison. CM3.2 Practical sheet; Worksheet; Technician’s notes; Presentation Quick starter Homework worksheet Homework quiz 10 2 9/10 3.14 Oxidation and reduction in terms of electrons Observe some reactions between metal atoms and metal ions. Learn to write ionic equations and half equations. Classify half equations as oxidation or reduction. C3.3a, b Technician’s notes; Practical sheet; Worksheet; Presentations 1 and 2 Quick starter Homework worksheet Homework quiz 10 2 9/10 3.15 Key concept: Electron transfer, oxidation and reduction Review ion formation. Classify half equations as oxidation or reduction. Review patterns in reactivity. Key Concept C3.3c Worksheet; Presentation Quick starter Homework worksheet Homework quiz Video 10 2 9/10 3.16 Neutralisation of acids and salt production React an acid and an alkali to make a salt. Predict the formulae of salts. Write balanced symbol equations. C3.3d Technician’s Practical sheet; Quick starter Homework worksheet
Worksheets 1 and 2 Homework quiz Video 10 2 9/10 3.17 Soluble salts React an acid and a metal to make a salt. Predict the formulae of Write balanced symbol equations and half equations. Technician’s notes; Practical sheet; Worksheets 1 and 2; Presentation and 2 starter Homework worksheet Homework quiz Video 10 2 11/12 3.18 Reaction of metals with acids an acid and a metal to make a salt. Predict the formulae of salts. Write balanced symbol equations and half equations. Technician’s notes; Practical sheet; Worksheets 1 and 2; Presentations 1 and 2 Quick starter Homework worksheet Homework quiz 10 2 11/12 3.19 Practical: Preparing a pure, dry sample of a soluble salt from an insoluble oxide or carbonate a carbonate with an acid to make a salt. Describe each step in the procedure. Determine the purity of the product. PAG Technician’s Practical sheet; Presentations 1 and 2 Quick starter Homework worksheet Homework quiz 10 2 11/12 3.20 pH and neutralisation Estimate the pH of solutions. Identify weak and strong acids and alkalis. Investigate pH changes when a strong acid neutralises a strong alkali. C3.3g–k Technician’s notes 1, 2 and 3; Practical sheet; Worksheet; Presentation Quick starter Homework worksheet Homework quiz 10 2 11/12 3.21 Strong and weak acids Explore the factors that affect the pH of an acid. Find out how the pH changes when an acid is diluted. Worksheet Quick starter Homework worksheet
Find out how the concentrations of solutions are measured. Homework quiz Video 10 2 11/12 3.22 Maths skill: Make order of magnitude calculations Explore the factors that affect the acidity of rain. Find out how acid concentrations are compared. Explore the link between hydrogen ion concentration and pH. CM3.3 Technician’s notes; Practical sheet; Presentation Quick starter Homework worksheet Homework quiz 10 3 1/2 3.23 Practical: Investigate the variables that affect temperature changes in reacting solutions, such as, acid plus metals, acid plus carbonates, neutralisations, displacement of metals Devise a hypothesis. Devise an investigation to test your hypothesis. Decide whether the evidence supports your hypothesis. PAG Technician’s notes; Practical sheet; Presentation Quick starter Homework worksheet Homework quiz 10 3 1/2 3.24 The process of electrolysis Explore what happens when a current passes through a solution of ions. Find out what an electrolyte is and what happens when it conducts electricity. Find out how electricity decomposes compounds. C3.4a Technician’s notes; Practical sheet; Worksheet; Presentation Quick starter Homework worksheet Homework quiz Slideshow Video 10 3 1/2 3.25 Electrolysis of molten compounds Look in detail at the electrolysis of lead bromide. Communicate the science behind the extraction of elements from molten salts. Write balanced half equations for electrolysis reactions. C3.4b Worksheet; Presentation Quick starter Homework worksheet Homework quiz 10 3 1/2 3.26 Electrolysis of aqueous solutions Investigate the products formed when copper sulfate is electrolysed. Predict what products other solutions will give. C3.4c–e Technician’s notes; starter Homework worksheet
Write half equations for reactions at electrodes. Worksheet; Practical sheet; Presentation Homework quiz 10 3 1/2 3.27 Practical: Investigating what happens when aqueous solutions are electrolysed using inert electrodes Devise a hypothesis. Devise an investigation to test your hypothesis. Decide whether the evidence supports your hypothesis. PAG Technician’s notes; Practical sheet; Presentations 1 and 2 Quick starter Homework worksheet Homework quiz 10 3 3/4 Assessment End of chapter test Student Book End of chapter test Collins Connect End of teaching block test Collins Connect End of year test Collins Connect Chapter 4: Predicting and identifying reactions and products (12 lessons) 10 3 3/4 4.1 Exploring Group 0 Explore the properties of noble gases. Find out how the mass of their atoms affects their boiling points. Relate their chemical properties to their electronic structures. C4.1a, b Worksheet; plotter 1; Presentations 1 and 2 Quick starter Homework worksheet Homework quiz Slideshow 10 3 3/4 4.2 Exploring Group 1 Explore the properties of Group 1 metals. Compare their reactivity. Relate their reactivity to their electronic structures. Worksheets 1, 2 and 3; Technician’s notes; Presentation Quick starter Homework worksheet Homework quiz 10 3 3/4 4.3 Exploring Group 7 Explain why Group 7 non-metals are known as ‘halogens’. Compare their reactivity. Relate their reactivity to their electronic structures. Worksheets 1, 2 and 3; Technician’s notes 1 and 2; Presentation starter Homework worksheet Homework quiz Slideshow 10 3 3/4 4.4 Transition metals Compare the properties of transition metals with those of Group 1 Explore the uses of transition metals. C4.1c Worksheet; Technician’s notes; Presentation Quick starter Homework worksheet
Find out why they can form compounds with different colours. Homework quiz Slideshow 10 3 5/6 4.5 Reaction trends and predicting reactions Review the patterns in the periodic table. Compare the trends in 1 and Group 7. Relate these trends to the way atoms form ions. C4.1d Worksheet; Presentation Quick starter Homework worksheet Homework quiz 10 3 5/6 4.6 Reactivity series Compare the reactivity of metals. Observe some reactions between metal atoms and metal ions. Consider why some metals are more reactive than others. C4.1e, f Practical sheet; Worksheet; Presentations 1 and 2 starter Homework worksheet Homework quiz Slideshow 10 3 5/6 4.7 Tests for gases Recall the tests for four common gases. Identify the four common using these tests. Explain why limewater can be used to detect carbon dioxide. C4.2a Practical Technician’s notes; Presentation Quick starter Homework worksheet Homework quiz 10 3 5/6 4.8 Metal hydroxides Recognise the precipitate colour of hydroxides. Explain how to use sodium hydroxide to test for metal ions. Write balanced equations for producing insoluble metal hydroxides. C4.2b–d Practical Worksheet; Technician’s notes Quick starter Homework worksheet Homework quiz Slideshow 10 3 5/6 4.9 Tests for anions Identify the tests for carbonates. Explain the tests for halides and sulfates. Identify anions and cations from the results of tests. Practical sheets 1 and 2; Worksheet; Technician’s notes 1 and 2 starter Homework worksheet Homework quiz 10 3 7/8 4.10 tests out flame-test procedures. Identify the colours of flames of ions. Identify species from the results of the C4.2e Practical sheet; Worksheet; Technician’s notes Quick starter Homework worksheet Homework quiz
10 3 9/10 5.4 Amounts of substance in volumes of gases Explain that the same amount of any gas occupies the same volume at room temperature and pressure (rtp). Calculate the volume of a gas at rtp from its mass and relative formula mass. Calculate the volumes of gases from a balanced equation and a given volume of a reactant or product. C5.1d–f Practical sheet 3.12; Worksheet 3.12; Technician’s notes 3.12 Quick starter Homework worksheet Homework quiz Video 10 3 9/10 5.5 Key Concept: Percentage Calculate the percentage yield from the actual yield. Identify the balanced equation needed for calculating yields. Calculate theoretical product amounts from reactant amounts. Key Concept C5.1g, h Practical sheet; Worksheet; Technician’s notes Quick starter Homework worksheet Homework quiz Video 10 3 9/10 5.6 Atom economy Identify the balanced equation of a reaction. Calculate the atom economy of a reaction to form a product. Explain why a particular reaction pathway is chosen. C5.1i–k Worksheets 1 and 2. Quick starter Homework worksheet Homework quiz 10 3 11/12 5.7 Maths skills: Change the subject of an equation Use equations to demonstrate conservation. Rearrange the subject of an equation. Carry out multi-step calculations. CM5.1 Worksheet Quick starter Homework worksheet Homework quiz 10 3 11/12 5.8 Measuring rates Measure the volume of gas given off during a reaction. Use the results to measure the reaction rate. Explore how the rate changes during the reaction. C5.2a Technician’s Practical sheet; Worksheet; Presentation 1 and 2; Graph plotter 1 Quick starter Homework worksheet Homework quiz 10 3 11/12 5.9 Calculating rates Find out how to calculate rates of reaction. Use graphs to compare reaction rates. Use tangents to measure rates that change. C5.2b Technician’s notes; Practical sheet; Quick starter Homework worksheet Homework quiz
Worksheet; Presentations 1 and 2 10 3 11/12 5.10 Factors affecting rates Measure the time taken to produce a specific amount of product. See how a reactant’s temperature or concentration can affect this time. Investigate the effect of breaking up a solid reactant into smaller pieces. C5.2c Technician’s notes; Practical sheet; Worksheets 1 and 2; Graph plotter 1; Presentation Quick starter Homework worksheet Homework quiz 10 3 11/12 5.11 Collision theory Find out the collision theory. Use collision theory to make predictions about reaction rates. Relate activation energies to collision theory. C5.2d Worksheets 1 and 2; Presentations 1 and 2 Quick starter Homework worksheet Homework quiz 11 1 1/2 5.12 Catalysts Investigate catalysts. Find out how catalysts work. how they affect activation energy. C5.2f–i Technician’s notes; Practical sheet; Worksheet Quick starter Homework worksheet Homework quiz Videos 11 1 1/2 5.13 Factors increasing the rate Interpret graphs. Consider what determines the reaction rate. Explore the effect of changing the amounts of reactants used. C5.2e Technician’s Practical sheet; Worksheet; Presentation Quick starter Homework worksheet Homework quiz Slideshow 11 1 1/2 5.14 Practical: Investigate how changes in concentration affect the of reactions by a method involving the production of Devise a hypothesis. Devise an investigation to test a hypothesis. Decide whether the evidence supports a hypothesis. PAG Technician’s notes; Practical sheets 1 and 2; Presentations 1 and 2; Graph plotter 1 Quick starter Homework worksheet Homework quiz
measure of rate of change Presentations 1 and 2 Homework quiz Video 11 1 3/4 Assessment End of chapter test Student Book End of chapter test Collins Connect End of teaching block test Collins Connect Chapter 6: Global Challenges (42 lessons) 11 1 5/6 6.1 Extraction of metals Find out where metals come from. Extract iron from its oxide using carbon. Consider how other metals are extracted from their ores. C6.1a, b Technician’s notes; Practical sheet; Worksheet; Presentation Quick starter Homework worksheet Homework quiz Slideshow 11 1 5/6 6.2 Using electrolysis to extract metals Review the connection between the reactivity series and the ways metals are extracted. Consider how aluminium is extracted from aluminium Learn the oxidation and reduction reactions involved. Worksheet; Presentations 1 and 2 Quick starter Homework worksheet Homework quiz Slideshow 11 1 5/6 6.3 Alternative methods of metal extraction Describe the process of phytomining. Describe the process of bioleaching. Evaluate alternative biological methods of metal extraction. C6.1c Practical sheet; Worksheets 1 and 2; Technician’s notes. Quick starter Homework worksheet Homework quiz 11 1 5/6 6.4 The Haber process Apply principles of dynamic equilibrium to the Haber process. Use graphs to explain the trade off with rate and equilibrium. Explain how commercially used conditions relate to cost. C6.1d–g Practical sheet; Worksheets 1 and 2; Technician’s notes Quick starter Homework worksheet Homework quiz 11 1 5/6 6.5 Production and use of NPK fertilisers Describe how to make a fertiliser in the laboratory. Explain how fertilisers are produced industrially. Compare the industrial production with laboratory preparation. C6.1h Practical sheet; Worksheet; Quick starter Homework worksheet Homework quiz
between graphical and numerical form Homework quiz 11 1 9/10 6.12 Function groups and homologous series Identify the first four hydrocarbons in the alkane series. Name the first four compounds in homologous series. Identify the functional group of a series. C6.2a, C6.2b Worksheet Quick starter Homework worksheet Homework quiz 11 1 9/10 6.13 Structure and formulae of alkenes Describe the difference between an alkane and an alkene. Draw the displayed structural formulae for the four members of the alkenes. Explain why alkenes are called unsaturated molecules. Worksheets 1 and 2 Quick starter Homework worksheet Homework quiz 11 1 9/10 6.14 Reaction of alkenes Describe the addition reactions of alkenes. Draw the full displayed structural formulae of the products alkenes make. Explain how alkenes react with hydrogen, water and the halogens. Practical Worksheets 1 and 2; Technician's notes Quick starter Homework worksheet Homework quiz 11 1 9/10 6.15 Alcohols Recognise alcohols from their name or from given formulae. Describe the conditions used for the fermentation of sugar using yeast. Write balanced chemical equations for the combustion of alcohols. Practical sheets 1 and 2; Worksheets 1 and 2; Technician's notes starter Homework worksheet Homework quiz 11 1 11/12 6.16 Carboxylic acids Describe the reactions of carboxylic Recognise carboxylic acids from their formulae. Explain the reaction of ethanoic acid with an alcohol. Practical sheet; Worksheets 1 and 2; Quick starter Homework worksheet Homework quiz Video
Technician's notes 11 1 11/12 6.17 Addition polymerisation Recognise addition polymers and monomers from diagrams. Draw diagrams of the formation of a polymer from an alkene. Relate the repeating unit of the polymer to the monomer. C6.2a–g Worksheets 1 and 2 Quick starter Homework worksheet Homework quiz 11 1 11/12 6.18 Condensation polymerisation Explain the basic principles of condensation polymerisation. Explain the role of functional groups in producing a condensation polymer. Explain the structure of the repeating units in a condensation polymer. Practical sheet; Worksheets 1 and 2; Technician’s notes Quick starter Homework worksheet Homework quiz 11 1 11/12 6.19 acids Describe the functional group of an amine. Identify the two functional groups of an amino acid. Explain how different amino acids build proteins. Worksheet Quick starter Homework worksheet Homework quiz 11 1 11/12 6.20 DNA and other naturally occurring polymers Describe the components of natural polymers. Explain the structure of proteins and carbohydrates. Explain how a molecule of DNA is constructed. C6.2h, i Worksheets 1 and 2 Quick starter Homework worksheet Homework quiz 11 2 1/2 6.21 Crude oil, hydrocarbons and alkanes Describe why crude oil is a finite resource. Identify the hydrocarbons in the series of alkanes. Explain the structure and formulae of the alkanes. C6.2l–o Worksheets 1 and 2 Quick starter Homework worksheet Homework quiz 11 2 1/2 6.22 Fractional distillation and petrochemicals Describe how oil is used to provide modern materials. Explain how crude oil is separated by fractional distillation. Explain why the boiling points of the fractions are different. C6.2j, k Practical sheet; Worksheets 1 and 2; Technician’s notes starter Homework worksheet Homework quiz
11 2 1/2 6.23 Properties of hydrocarbons Describe how different hydrocarbon fuels have different properties. Identify the properties that influence the use of fuels. Explain how the properties are related to the size of the molecules. Worksheets 1 and 2 Quick starter Homework worksheet Homework quiz Video 11 2 1/2 6.24 Cracking and alkenes Describe the usefulness of cracking. Balance chemical equations as examples of cracking. Explain why modern life depends on the uses of hydrocarbons. Practical sheet; Worksheet Technician’s notes Quick starter Homework worksheet Homework quiz Slideshow 1 Slideshow 2 11 2 1/2 6.25 Cells and batteries Make simple cells and measure their voltages. Consider the importance of cells and batteries. Find out how larger voltages can be produced. C6.2p Technician’s Practical sheet; Worksheets 1 and 2 Quick starter Homework worksheet Homework quiz 11 2 3/4 6.26 Fuel cells Find out how fuel cells work. Compare and contrast the uses of hydrogen fuel batteries and rechargeable cells. Learn what reactions take place inside hydrogen fuel cells. C6.2q Technician’s notes; Worksheet; Presentations 1 and 2 Quick starter Homework worksheet Homework quiz Video 11 2 3/4 6.27 Key concept: Intermolecular forces Identify the bonds within a molecule and the forces between molecules. Explain changes of state. Explain how polymer structure determines its ability to stretch. Key Concept Worksheets 1 and 2 starter Homework worksheet Homework quiz Video 11 2 3/4 6.28 Maths skills: Visualise and represent 3D models Use 3D models to represent hydrocarbons. Use 3D models to represent polymers. Use 3D models to represent large biological molecules. CM6.2 Worksheets 1 and 2 starter Homework worksheet Homework quiz
11 2 3/4 6.29 Proportions of gases in the atmosphere Review the composition of the atmosphere. Measure the percentage of oxygen in the atmosphere. Consider why it the same. C6.3a Worksheets 1 and 2; Technician’s notes Quick starter Homework worksheet Homework quiz 11 2 3/4 6.30 The early atmosphere Explore the origins of the Earth’s atmosphere. Consider the evidence that about the early atmosphere are based on. Consider the strength of the evidence these ideas are based on. Worksheet Quick starter Homework worksheet Homework quiz 11 2 5/6 6.31 How oxygen increased Explore the processes that changed the oxygen concentration in the atmosphere. Consider the role of algae. Consider why oxygen levels in the atmosphere didn’t rise when oxygen was first produced. C6.3b Worksheet; Presentation Quick starter Homework worksheet Homework quiz Slideshow 11 2 5/6 6.32 Greenhouse gases Review the greenhouse effect. Explain how greenhouse gases trap heat. Consider the consequences of adding greenhouse gases to the atmosphere. Key concept C6.3c–f Worksheet; Presentation Quick starter Homework worksheet Homework quiz 11 2 5/6 6.33 Human activities Consider the factors that affect the quality of scientific reports. Consider the reliability of computer models. Find out what peer review involves. Worksheet; Presentations 1 and 2 Quick starter Homework worksheet Homework quiz 11 2 5/6 6.34 Global climate change Explore the consequences of climate change. Consider the risks to human health. Judge the seriousness of these consequences. Worksheet; Presentation Quick starter Homework worksheet Homework quiz Slideshow 11 2 5/6 6.35 Carbon footprint and its reduction Find out what a carbon footprint is. Consider factors that contribute to our carbon footprints. Explore ways of reducing our carbon footprints. Worksheet; Presentation starter Homework worksheet Homework quiz Video
11 2 7/8 6.36 Limitations on carbon footprint reduction Review the uncertainties about carbon emissions. Consider factors which limit our ability to reduce our carbon footprints. Decide factors are most important. Worksheets 1 and 2; Presentation Quick starter Homework worksheet Homework quiz 11 2 7/8 6.37 Atmospheric pollutants from Explore the products formed when fuels burn. Distinguish between complete and incomplete combustion. Write equations for complete and incomplete combustion. Worksheets 1, 2, 3 and 4; Technician’s Presentation starter Homework worksheet Homework quiz Slideshow 11 2 7/8 6.38 Properties and effects of atmospheric pollutants Review the hazards associated with air pollutants. Investigate correlations between pollutant emissions and deaths from asthma. Consider whether support the hypothesis that air pollution makes asthma worse. Worksheets 1 and 2; Presentations 1 and 2 Quick starter Homework worksheet Homework quiz 11 2 7/8 6.39 Potable water Distinguish between potable water and pure water. Describe the differences in treatment of ground water and salty water. Explain what is needed to provide potable water for all. C6.3g–j Worksheets 1, 2 and 3; Technician’s Quick starter Homework worksheet Homework quiz 11 2 7/8 6.40 Waste water treatment Explain how waste water is treated. Describe how sewage is treated. Compare the ease of treating waste, ground and salt water. Worksheets 1, 2 and 3 Quick starter Homework worksheet Homework quiz Video 11 2 9/10 6.41 Practical: Analysis and purification of water samples from different sources, including pH, dissolved solids and distillation Describe how safety is managed, apparatus is used and accurate measurements are made. Recognise when sampling techniques need to be used and made representative. Carry out a procedure to produce potable water from salt solution. Evaluate methods and suggest possible improvements and further investigations. PAG Practical sheets 1 and 2; Worksheet; Technician’s notes starter Homework worksheet Homework quiz