Science Unit 5 Chemistry 2014-2015 KS4 Medium term overview Module Title: Module Length: BTEC First Award in Applications of Applied Science Unit 5: Applications of chemical substances 30 guided learning hours Overall aims of the scheme: Core activities: Learning aim A: Learning aim A: Investigate and understand enthalpy changes associated with chemical reactions Learning aim B: Investigate organic compounds used in society Learning aim C: Explore the uses of nanochemicals and new materials 2A.P1 Inclusion: gifted and talented, SEN, EAL SEN: 1. key word definitions; 2. Differentiated work sheets 3. Support through verbal interaction 4. Working towards level 2 but can evidence level 1 work G&T: 1. Differentiated skill sheets 2. Work towards merit/distinction grades 3. Take the lead in practical activities EAL: 1. Use of visual aids- PP slides, images, practical work 1. Learners list a number of different reactions and then separate them into endothermic or exothermic. 2. Teacher explanation of exothermic and endothermic reactions. 3. Learners carry out a number of endothermic and exothermic reactions. They take measurements to obtain evidence to classify them as endothermic or exothermic reactions. 4. Learners use their results to calculate temperature changes. Learners define and exemplify exothermic reactions and endothermic reactions. 2A.P1 1. Show learners a video of a calorimetric experiment. 2. Learners design a poster for a science centre on breaking and forming bonds and how this determines energy changes in a reaction. 2A.M1 1.Learners carry out an experiment dissolving sodium carbonate 2. Explain why some examples of reactions are exothermic or endothermic overall. 3. Learners investigate how much energy crisps contain. 4. Learners should write a full conclusion and evaluation of the investigation. 5. Demonstrate a reusable instant heat pack. Discuss the applications of instant heat packs and the science behind them. 2A.D1 1 By CHu Syllabus References: Edexcel exam board ICT Links: a) Developing skills in Independent research b) Developing skills in specific research criteria c) Understanding what plagiarism is Developing skills in referencing research resources- web sites correctly Research: endothermic and exothermic reactions Research: crude oil and what it is made up of. Research types of SMART materials Research fractions of crude oil Literacy and Learning Learning through talk: Comparing chemical reactions looking at breaking and forming bonds and how this determines energy changes in a reaction. Discussion on video of a calorimetric experiment Discussion on bonds and the exothermic process. Discussion on the design poster and mnemonic for remembering the structures and properties of alkenes and alkanes. Discuss and collaborate on creating a short ten question quiz, for other learners, on crude oil and its fractional distillation 2. Emphasis on key words use and meanings 3. Availability of a dictionary 4. Use of Google translate PP: 1. Regular assessment of student progress 2. Encouragement in class activities LAC: 1. Use of Collins differentiated work tasks available Boys underachievement: 1. Encourage full interaction in activities 2. Identify roles in group work 3. Peer supporting activities Assessment for Learning Opportunities: 1. Students have targets which they know and understand 2. Students know regularly at what level they are working in relation to these targets 3. Students know how they can improve their working at level so as to achieve their targets 4. The students have access to level/grade descriptors, e.g. in their books or on classroom walls, and they understand them, and there is reference to them within lessons 5. There are exemplars of good work available of different types which we can 1. Learners practise calorimetric and energy change calculations. 2. Learners write a full explanation of one of the reactions they have investigated during the lesson. 3. Learners complete a true/false activity on energy changes in reactions and how bonds breaking and forming causes a reaction to be exothermic or endothermic. Learners could create the true/false statements themselves and test their peers 4. Learners create a presentation about bonds and the exothermic process. 5. Learners carry out further reactions and calculate temperature changes. 6. Learners write five statements about the thermite reaction and heat and cool packs. Small/large group activities – practical investigations- developing team work Use of roles within groups Presentation for the board of directors of a company to promote the production of nanochemicals. Learning from text: Use research and put information into own words Use of text books for research- students to gather appropriate information they required Use of library books Use of Applications Of science text books Learning aim B: Presenting work as: reports, leaflets, newspaper articles, posters 2B.P2 Learners discuss what they know about crude oil and what it is made up of. 2B.M2 1. Learners label a diagram of a crude oil fractioning column with the fractions given off. 2. Demonstrate the separation of the fractions of crude oil and test the fractions for viscosity, smell and flammability. 2B.D2 Learners create a short ten question quiz, for other learners, on crude oil and its fractional distillation. 2B.P3 Give learners a selection of structural and display formulae for organic molecules. Ask learners to name these organic molecules. The activity can be revisited at the end of the lesson to review progress. 2B.M3 Ask learners to draw a range of organic molecules. Learners can follow this up by describing the bonding in these examples. 2B.M4 Give learners a list of experimental results for the tests to identify hydrocarbon molecules. Ask them to explain these tests 2 By CHu Learning through writing: Numeracy Links: Calorimetric and energy change calculations. Calculate energy changes in endothermic and exothermic reactions writing word equations then symbol equations then balancing them Calculating averages from practical results from Construct graphs lined/ bar/ curves from Cross-Curricular Links: Geography: looking at different areas within the country, then different countries environmental show to students and which, in particular, illustrate level/grade requirements 6. Schemes of work/lesson plans all make specific reference to AFL 7. Learning objectives are differentiated and levelled/graded 8. Lesson observations show that each teacher is in “AFL mode”, i.e. always discussing their work with students and helping them see how they can improve in terms of level/grade descriptors and achieving targets. 9. There is evidence that teachers have the skill of asking the students the type of questions, both individually and to the whole class, that enables them to understand how they can progress, and where relevant lead them to see how they can move on to achieve higher levels/grades. 10. There is evidence that both peer and self assessment relating to the learning objectives are occurring in lessons as appropriate 11. There is the evidence of AFL comments in the marking of students’ work. 12. AFL is also being used to adjust schemes of work, lesson plans and overall teaching in the light of analysis of the ascertained responses of students Student Leadership Opportunities: Group work roles- manager/ leader during practical activities Organising a small group for a presentation to the class on in terms of the type of reaction, structure and bonding of the molecule. Extension/Enrichment Opportunities: 2C.P6 Learners write a positive, minus, interesting list about nanoparticles. Positive – what they know; Minus – what they think they know a little about; Interesting – what they want to know more about. Working at the higher distinction grades, to evaluate, synthesise learning 2B.D3 Learners write a series of questions and answers about functional groups. 2B.P4 Learners design posters and mnemonics for remembering the structures and properties of alkenes and alkanes. 2B.M4 Give learners a scenario of two bottles found in a cupboard. They know that one is a carboxylic acid and one is an alcohol. Their task is to form a plan for a series of experiments to work out which is which. Learners should list, describe and explain the tests they suggest. 2B.D3 Learners list as many organic molecules as they can and sort them into groups. Learning aim C: 2C.P6 1. Learners talk about nanochemicals for one minute without pausing or repeating themselves. 2. Learners create a presentation for the board of directors of a company to promote the production of nanochemicals. Local environment and how we can contribute to improving our environment and how this can be managed in a sustainable way. Art/ Design Design a storyboard for a five-minute segment of a TV or radio science show on nanochemicals and their uses Design posters and mnemonics for remembering the structures and properties of alkenes and alkanes. Technology suits of armour that knights used to wear and compare those to the properties Kevlar® gives body armour 2C.M6 1, Learners give three reasons for using nanoparticles. 2. Learners use their knowledge of nanochemicals to re-design an object in daily use that would benefit from nanochemical intervention. WrL / Enterprise: 2C.D5 Learners list three advantages and three disadvantages of using nanochemicals. 3 By CHu impacts of crude oil excavation, separation of the fractions of crude oil and test the fractions for viscosity, smell and flammability. the changing of some environments through human actions. SMSC Natural verses made-made fabrics and effects on the environment to produce nanochemicals. 2C.M6 Learners design a storyboard for a five-minute segment of a TV or radio science show on nanochemicals and their uses 2C.D5 1. Learners watch a video on NanoSphere Technical Fabric and explain how the nanosphere coating does not allow foods and water to stick to it. Learners can then go on to think of possible uses for this fabric. 2. Learners have one minute to remember as many uses of nanoparticles as possible. 2C.P6 1. Learners write true/false statements about nanoparticles and use these for peer assessment. 2. Show some video examples of smart materials. Ask learners to think about suits of armour that knights used to wear and compare those to the properties Kevlar® gives body armour. Learners draw up a table that compares the properties of the two types of armour. 2C.M6 1. Learners discuss the use of nanoparticles in sun cream; the benefits and the drawbacks. Learners finish off by reaching a class conclusion 2. Learners design a poster to enthuse young scientists by showing them the exciting advances in nanotechnology and smart materials. 2C.D5 1. Learners make a conclusion about whether it is a good idea to use nanochemistry. 2. Learners write a list of uses for a metal that has a property where it returns to its former shape when heated. 4 By CHu Justification/ advantages/disadvantages Week 1 Learning Objectives 2A.P1 Investigate temperature changes associated with exothermic and endothermic reactions using primary data. 2 2A.M1 Explain why an overall reaction is exothermic or endothermic. 2A.D1 Calculate the energy changes that take place during exothermic and endothermic reactions. 3 2B.P2 Describe the fractional distillation of crude oil to produce a range of useful products. Tasks Differentiation Research and describe the terms endothermic and exothermic reactions Investigate some examples of endothermic and exothermic reactions, complete a lab report Record your results in a suitable table with appropriate column headings and units. 1A.1 1. Evidence of at least one exothermic and one endothermic reaction. Measurements of the temperature changes and the changes recorded 2. Evidence of correctly identified increase or decrease in temperature, but link to the reactions taking heat in or giving out heat is not required 3. Provide a Performa for this evidence to be produced, e.g. a laboratory report From the results of your investigation in task 1 discuss with a partner what is happening with the temperature changes in each investigation carried out- what energy transfers processes are occurring. Draw and label diagrams using the particle model to show what has happened in the chemical reaction. Complete a discussion sheet Complete an explanation sheet to outline your ideas. Using the results to describe patterns and trends and draw conclusions. Relate your answer to justify your ideas scientifically using the words, ‘system’ ‘surroundings’ ‘heat energy’ Calculate the temperature change and the amount of heat energy taken in or given out during each reaction. Write a report for manufactures of a self- heating coffee can. Apart from Calcium Oxide identify another solid substance that can be used to make the can self-heating, self-cooling, explain your reasoning Following your report in task 2, construct a leaflet to explain scientifically, to advertise your product. To Justify your choice you should mention bonding strength. Aim this leaflet at your peer group, Research crude oil and describe what the fractional distillation process is Draw a table with the title ‘Fractions obtained from crude oil’. The table should contain the names of each of the fractions that can be obtained from crude oil, and identify the uses of each fraction. Describe how crude oil is separated into fractions using fractional distillation. 5 By CHu 2A.M1 Explaining the key scientific concepts following the investigation. Expectations of detail in work showing clear ideas on patterns and trends 2A.D1 The distinction section requires higher level reasoning to evaluate the energy changes of the reactions, and apply the data available to possible uses of the knowledge in real-life scenarios 1B.2 1. Research and identify the uses of crude oil fractions 2. Provide evidence of specifically stating the uses of the gases; propane and butane 3. Produce a poster / a detailed diagram of fractional distillation annotated 2B.M2 Explain how fractional distillation separates compounds due to different boiling ranges. 2B.D2 Analyse the relationship between the boiling range and the length of carbon chain of fractions. 4 2B.P3 Draw accurately the structural and displayed formulae of organic molecules. 5 2B.P3 Draw accurately the structural and displayed formulae of organic molecules. 2B.M3 Describe the bonding and structure of organic molecules. Research and draw a diagram of a fractional distillation column. Label each of the fractions produced in order from top to bottom of the column. Indicate on the diagram the temperature range for each fraction Add a column to your ‘Fractions obtained from crude oil’ table listing the boiling ranges of each fraction. Explain the boiling ranges of the different fractions. Relate them to the position of the fraction in the fractionating column. Analyse the relationship between boiling range and length of carbon chain of fractions Demonstrate how boiling point is linked to carbon chain length by working out the average of each boiling point range and the average number of carbon atoms in each fraction. Plot a graph of average boiling point against average number of carbon atoms in a chain. Describe and explain the link between the boiling point of the fractions and the length of their carbon chains. Fractions containing short carbon chains can be obtained from the fractionating column. Name and represent the first six straight chain alkanes by their structural and displayed formulae. State the uses of the compounds containing three and four carbon atoms in the chain and also petrol, diesel and Kerosene. Describe how chemists can use simple tests to distinguish between different organic compounds. and present the structure of each Research the following organic molecules; methane, ethene, chloromethane, chloroethene, poly (ethene), ethanol and ethanoic acid. Represent each of the organic molecules by their structural and displayed formulae: methane, ethene, chloromethane, chloroethene, poly(ethene), ethanol and ethanoic acid. Explain the meaning of the lines between the atoms in each structural formula. 6 By CHu 2A.M2 This merit work requires students to explain in detail the process of fractional distillation relating quantitative data on boiling points to the position within the fractionating column 2A.D2 Developing analytical skills using higher level reasoning for the distinction 1B.3 1. Can name from a representation of the structural and displayed formulae, methane, ethane, propane, butane, ethene and propene 2A.M3 This merit work requires higher levels of research IT skills and to explain the evidence understanding of the structures of organic compounds explaining the differences in them 6 7 2B.M4 Explain how a series of experiments can be used to identify organic compounds based on their solubility and reactions. 2B.P4 Identify an alcohol and a carboxylic acid using primary observations. . 2B.D3 Explain the results of experiments to identify organic compounds in terms of their reaction type, structural and displayed formulae, and bonding. 8 2B.P5 Describe the uses of organic compounds in our society. 9 2B.P5 Describe the uses of organic compounds in our society. Research and explain the similarities and differences between the bonding present in methane and ethene. This can be presented in an information leaflet format Describe a test which could be used to distinguish between methane and etene. Describe tests which could be used to identify ethanoic acid by its pH and reaction with sodium carbonate. Carry out the practical experiment ‘Testing organic compounds’. Explain how these tests would be able to distinguish between an unknown alkane, alkene and carboxylic acid. Make a summary table of what happens when each of the tests are performed on alkanes, alkenes and carboxylic acids. Explain why each of the results occurs by considering the formula, bonding and functional group of each type of compound Explaining some of the problems that are associated with using certain organic compounds Research the following compounds: ethene, ethanol, ethanoic acid, and the polymers poly(ethene), poly(vinyl chloride) (PVC) and poly (tetrafluoroethene) (PTFE). List the uses of each of these compounds In a table, provide a brief description of the uses of the following compounds: ethene, ethanol, ethanoic acid, and the Polymers poly (ethene), poly (vinyl chloride) (PVC) and poly (tetrafluoroethene) (PTFE). Explaining some of the problems that are associated with using certain organic compounds research the following compounds: ethene, ethanol, ethanoic acid, and the polymers poly (ethene), poly (vinyl chloride) (PVC) and poly (tetrafluoroethene) (PTFE). List the uses of each of these compound In a table, provide a brief description of the uses of the 7 By CHu 2A.M4 This merit work requires the student to demonstrate deeper understanding of bonding. Being able to identify and explain tests used to identify substances through a variety of processes 1B.4 1. Under supervision students to identify an alkane and an alkene from primary observations. 2. The alkane and alkene can be identified by being insoluble in water 3. The alkene can be identified by its ability to decolourise bromine water rapidly 2A.D3 To gain the distinction award the student is required to relate the merit work above on how to identify substances from different tests to the formula of these substances. They are expected to have and show skills of writing the formulae without recourse to additional resources 1B.5 Describe work done in terms of forces moving through a distance 10 11 following compounds: ethene, ethanol, ethanoic acid, and the polymers poly(ethene), poly(vinyl chloride) (PVC) and poly(tetrafluoroethene) (PTFE) For at least two of the compounds explain in detail the problems that are associated with the use or application of that compound. i) Contrast the benefits and drawbacks of using two different organic materials. ii) Decide whether the benefits outweigh the risks for each example and justify your opinion. 2A.M5 This merit section required evidence that the student can provide details on applications of compounds. This needs the students to show their knowledge from the pass and relate this learning to explain the key learning 2B.D4 Evaluate the benefits and drawbacks of using organic materials Prepare a poster of the uses of the chemicals you researched in task 2. You need to include everyday examples, hazard risks, and disadvantages related to their uses. You must justify how important the uses are. 2A.D4 The student needs to be able to show skills in evaluating the data they have gathered, by providing links to everyday life to be awarded the distinction 2C.P6 Describe a use of nanochemicals, smart and specialised materials. Following you research you found that the company’s most successful products in the early years were smart materials. Title ‘Early products’ Define the term ‘smart material’ and make a list of some examples of these materials. Research one use of a smart material, which the company used to make their products in the early days. This material Responds to a change in the environment. Provide a detailed description of it. Explain the benefits of using smart materials, rather than other materials, to perform a certain function. Make a list of the drawbacks of using smart materials. This should include the concerns of the public. Consider both the benefits and drawbacks to using smart materials and make your own conclusions about the uses of These materials. Following you research you found that the company’s most successful products in the early years were smart materials. Title ‘Early products’ Define the term ‘smart material’ and make a list of some examples of these materials. Research one use of a smart material, which the company used to make their products in the early days. This material 1C. 6 1. Can define the term ‘nanochemical’ using research and where possible include one example of the new materials and its application 2B.M5 Explain the problems associated with the use of organic molecules. 12 2C.P6 Describe a use of nanochemicals, smart and specialised materials. 8 By CHu 13 2C.M6 Explain the benefits of using nanochemicals, smart and specialised materials. 14 2C.D5 Evaluate the benefits and drawbacks of using nanochemicals, smart and specialised materials. Responds to a change in the environment. Provide a detailed description of it. Explain the benefits of using smart materials, rather than other materials, to perform a certain function. Make a list of the drawbacks of using smart materials. This should include the concerns of the public. Consider both the benefits and drawbacks to using smart materials and make your own conclusions about the uses of these materials. Your research then found that the company was involved in developing products which used polymers with specialised properties. Title ‘Other specialised materials’. Make a list of materials, other than smart materials, which could be described as specialised materials. Investigate one use of a specialised polymer which the company has used to make their products. Provide a detailed description of it. Explain the benefits of using this material rather than other types of material. Make a list of the drawbacks of using specialised polymers. This should include the concerns of the public. Consider both the benefits and drawbacks to specialised polymers and come to a conclusion about the uses or applications of these materials. At the beginning of the 21st century the company expanded into producing several products which use nanochemicals. Title ‘Nanochemicals in recent years’. Define the term ‘nanochemical’. Investigate one use of nanochemicals, which the company has used to make their products. Provide a detailed description Explain the benefits of using nanochemicals in the products, rather than other types of chemical. Make a list of the drawbacks of using nanochemicals in the products, rather than traditional chemicals. Consider both the benefits and drawbacks of using nanochemicals and come to your own conclusion about the uses of Nanochemicals. Write a newspaper report about nanoparticles. Include information about what they are and why they are useful and possible dangers. You need to include at least two examples. 9 By CHu 2A.M6 For this merit students need to demonstrate clear knowledge of the science involved in the development of SMART material the research, tests done under laboratory conditions, and how this process progress to the final accessibility by the general public. For example swimming suits and the use of lycra 2A.D5 Following the merit students need to use their knowledge to consider the wider benefits and drawbacks to society of nanochemical discovery