TOPIC: Year 10 CHEMISTRY- Chemical Reactions Context: Every day, chemical reactions are taking place inside and around you. Chemical reactions digest food and release energy to your cells. They occur when you are cooking at the stove. They occur in factories when something is being manufactured. Some chemical reactions have lasting impressions such as in fireworks or bushfires. By understanding how these chemical reactions work, scientists are able to predict the outcome of the reactions and identify the products formed. It also allows scientists to control how fast or how slow a reaction takes place. This knowledge makes industrial processes more efficient, conserves the environment and can even save your life in a medical emergency. Outcomes: A student: • explains how models, theories and laws about matter have been refined as new scientific evidence becomes available • discusses the importance of chemical reactions in the production of a range of substances and how society influences the development of new materials Science as a Human Endeavour • Scientific understanding, including models and theories, are contestable and are refined over time through a process of review by the scientific community • The values and needs of contemporary society can influence the focus of scientific research Science Understanding • The atomic structure and properties of elements are used to organise them in the Periodic Table • Different types of chemical reactions are used to produce a range of products and can occur at different rates • In chemical reactions, which can occur at different rates, atoms are rearranged to produce a range of products Vocabulary: Element Chemical equation Endothermic Combustion Compound Acid Corrosion Metal Reactant Base Decomposition Non metal Product Neutralisation Catalyst Chemical reaction Exothermic Precipitation Experiment: Dependent, Independent and Control variables (validity) and reliability (repetition). Literacy: COSMOS. Culinary Alchemy by John Pickrell : Issue 18 page 66 Read, review article and answer questions provided. Activities and question in Cosmos Teachers Notes issue 18. Numeracy: Determine and plot earthquake epicentre ICT: Use ICT to access above COSMOS article online and submit answers from literacy exercise via Edmodo. Examination: Topic test TOPIC: Year 10 CHEMISTRY. Chemical Reactions Students learn about: The atomic structure and properties of elements are used to organise them in the Periodic Table Different types of chemical reactions are used to produce a range of products and can occur at different rates Students learn to: References and resources The atomic structure and properties of elements are used to organise them in the Periodic Table Review atom, atomic structure, element, periodic table, atomic mass number, atomic number, metals, non metals, semi metal, inert gas, electron shells KISS Booklet: Atoms SCIENCE FOCUS 3: Ch 1 identify that new substances are formed during chemical reactions by rearranging atoms rather than by creating or destroying them Write a definition of a compound and distinguish between a compound, element and mixture. Make a compound from two elements (a simple combination reaction) such as heating magnesium in a Bunsen flame 2Mg+O2 → 2MgO. State the features of a chemical change and physical change. Use the terms products and reactants to describe the chemicals in a reactions. Recall that most gases of elements are found as diatomic molecules E.g. H2, O2, and N2. Students write a scientific report for experiments stating dependent and independent variables. Identify that heat can be produced in a chemical reaction Practical: Perform an experiment to produce a compound from two elements and identify evidence of chemical changes. Classify (ionic) compounds into acids, bases and salts and state the properties of these substances Give at least two examples of acids, bases and salts Practical: students test common substances for pH with universal indicator OPTION: use flower petals and plant dyes to make natural indicators KISS Booklet: Reactions SCIENCE FOCUS 4: Ch 1 Core Science Stage 5 pp. 213-217 Decomposition Practical: Perform and model a decomposition reaction. Perform a decomposition reaction by strongly heating Copper KISS Booklet: Reactions SCIENCE FOCUS 4: Ch 1 Core Science Stage 5 pp. classify compounds into groups based on common chemical characteristics In chemical reactions, which Integrated learning, teaching and assessment construct word equations from observations and written descriptions of a range of Core Science Stage 5 pp. 218-223, 226-227 can occur at different rates, atoms are rearranged to produce a range of products chemical reactions including: decomposition [L] combustion corrosion precipitation - - the action of acids on metals and acids on carbonates neutralisation Carbonate in a test tube or Observe the decomposition of water in a Hofmann voltammeter. Students write a word equation from this reaction. model a decomposition reaction using the molymod kit Combustion Reactions Corrosion Precipitation Practical: Perform a range of precipitate reactions and write word equations. Extension: Students use the solubility rules to predict the state of products formed in a precipitate reaction. Acid on metals and carbonates: Practical: Perform Metal and acid reactions collect the gas and test it to confirm that it is hydrogen. Compare the reactivity of various metals and relate to their group in the periodic table. Record observations and write a word equation of a metal and acid reaction. Practical: Perform Metal and Carbonate reactions, collect the gas and bubble through lime water to confirm the presence of carbon Dioxide. List the products and reactants in a metal and carbonate reaction and write a word equation. KISS Booklet: Reactions SCIENCE FOCUS 4: Ch 1 Core Science Stage 5 pp. Neutralisation Practical: Perform an acid base reaction and list the products and the reactants. Test the products with an indicator and write a word equation. describe the reactants and products in the processes of photosynthesis and respiration write chemical formulas for some common compounds such as water, Carbon Dioxide, Sulfuric Acid, Sodium Hydroxide. use correct suffix (-ide) with nonmetals in a compound Eg Magnesium Sulfide. Describe the processes –Photosynthesis and Respiration KISS Booklet: Reactions SCIENCE FOCUS 4: Ch 1 Core Science Stage 5 pp. Identify that chemical reactions can be exothermic or endothermic as they involve energy transfer. Practical –exothermic and endothermic reactions-Students measure temperature change. Explain the similarities and differences between combustion and respiration. KISS Booklet: Reactions SCIENCE FOCUS 4: Ch 1 Core Science Stage 5 pp. Explain rate of chemical reactions Identify factors that effect rate of chemical reactions Practical :Explain the effect of temperature and catalyst on rate of chemical reactions. Research how ethical and environmental considerations influence decisions about scientific research related to the development and production of new materials KISS Booklet: Reactions SCIENCE FOCUS 4: Ch 1 Core Science Stage 5 pp. make some simple atoms using the molecular model kits Display the electrons in each level. KISS Booklet: Reactions SCIENCE FOCUS 4: Ch 1 sort metals into their order of activity identify the characteristics that classify substances as either ionic or covalent compounds Investigate the activity of metals Science edge 4 Explain formation of ionic and covalent compounds Science edge 4 balance a range of common chemical equations Balance chemical equations Science edge 4 identify properties of different substances that can be explained in terms of their subatomic structure Investigate properties of different substances and explain on basis of their sub atomic structure. Science edge 4 identify that chemical reactions involve energy transfer and can be exothermic or endothermic Additional Content compare combustion and respiration as processes which both release energy but occur at different rates identify the effects of factors such as temperature and catalysts on the rate of some common chemical reactions discuss how ethical and environmental considerations influence decisions about scientific research related to the development and production of new materials [SE]; [EU] use models to describe the arrangement of electrons in the principal energy levels of common elements KISS Booklet: Reactions SCIENCE FOCUS 4: Ch 1 Core Science Stage 5 pp. Core Science Stage 5 pp. 79-88 Year 10 Chemical Reactions check The atomic structure and properties of elements are used to organise them in the Periodic Table Review atom, atomic structure, element, periodic table, atomic mass number, atomic number, metals, non metals, semi metal, inert gas, electron shells XT: use models to describe the arrangement of electrons in the principal energy levels of common elements XT: sort metals into their order of activity Different types of chemical reactions are used to produce a range of products and can occur at different rates Identify that new substances are formed during chemical reactions by rearranging atoms rather than by creating or destroying them Features of a chemical reaction Types of chemical reactions: Synthesis or combination reactions Practical: Perform an experiment to produce a compound from two elements and identify evidence of chemical changes. ( 2Mg+O2 → 2MgO.) classify compounds into groups based on common chemical characteristics Classify (ionic) compounds into acids, bases and salts and state the properties of these substances XT: identify the characteristics that classify substances as either ionic or covalent compounds XT: identify properties of different substances that can be explained in terms of their subatomic structure In chemical reactions, which can occur at different rates, atoms are rearranged to produce a range of products Construct word equations from observations and written descriptions of a range of chemical reactions including: XT: balance a range of common chemical equations Decomposition reactions Practical: Perform and model a decomposition reaction. Perform a decomposition reaction by strongly heating Copper Carbonate in a test tube or Observe the decomposition of water in a Hofmann voltammeter. Students write a word equation from this reaction. Model a decomposition reaction using the molymod kit Combustion reactions Explain the similarities and differences between combustion and respiration. (compare combustion and respiration as processes which both release energy but occur at different rates) Corrosion reactions Practical: Investigate factors affecting corrosion of iron nails Precipitation reactions Practical: Perform a range of precipitate reactions and write word equations. Extension: Students use the solubility rules to predict the state of products formed in a precipitate reaction. Acid on metals and carbonate reactions: Practical: Perform Metal and acid reactions collect the gas and test it to confirm that it is hydrogen. Compare the reactivity of various metals and relate to their group in the periodic table. Record observations and write a word equation of a metal and acid reaction. Practical: Perform Metal and Carbonate reactions, collect the gas and bubble through lime water to confirm the presence of carbon Dioxide. List the products and reactants in a metal and carbonate reaction and write a word equation. Neutralisation reactions Practical: Perform an acid base reaction and list the products and the reactants. Test the products □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ date with an indicator and write a word equation. Write chemical formulas for some common compounds such as water, Carbon Dioxide, Sulfuric Acid, Sodium Hydroxide. use correct suffix (-ide) with nonmetals in a compound Eg Magnesium Sulfide. describe the reactants and products in the processes of photosynthesis and respiration identify that chemical reactions involve energy transfer and can be exothermic or endothermic Identify that chemical reactions can be exothermic or endothermic as they involve energy transfer. Practical –exothermic and endothermic reactions-Students measure temperature change. Identify the effects of factors such as temperature and catalysts on the rate of some common chemical reactions Explain rate of chemical reactions Identify factors that effect rate of chemical reactions Practical: Explain the effect of temperature and catalyst on rate of chemical reactions. Discuss how ethical and environmental considerations influence decisions about scientific research related to the development and production of new materials Research how ethical and environmental considerations influence decisions about scientific research related to the development and production of new materials TOPIC TEST □ □ □ □ □ □ □ □ Comments on Unit of work and Register: Date: _______________________________________________ Signature: _______________________________________________ Year 10 Chemical Reactions check The atomic structure and properties of elements are used to organise them in the Periodic Table Review atom, atomic structure, element, periodic table, atomic mass number, atomic number, metals, non metals, semi metal, inert gas, electron shells XT: use models to describe the arrangement of electrons in the principal energy levels of common elements XT: sort metals into their order of activity Different types of chemical reactions are used to produce a range of products and can occur at different rates Identify that new substances are formed during chemical reactions by rearranging atoms rather than by creating or destroying them Features of a chemical reaction Types of chemical reactions: Synthesis or combination reactions Practical: Perform an experiment to produce a compound from two elements and identify evidence of chemical changes. ( 2Mg+O2 → 2MgO.) classify compounds into groups based on common chemical characteristics Classify (ionic) compounds into acids, bases and salts and state the properties of these substances XT: identify the characteristics that classify substances as either ionic or covalent compounds XT: identify properties of different substances that can be explained in terms of their subatomic structure In chemical reactions, which can occur at different rates, atoms are rearranged to produce a range of products Construct word equations from observations and written descriptions of a range of chemical reactions including: XT: balance a range of common chemical equations Decomposition reactions Practical: Perform and model a decomposition reaction. Perform a decomposition reaction by strongly heating Copper Carbonate in a test tube or Observe the decomposition of water in a Hofmann voltammeter. Students write a word equation from this reaction. Model a decomposition reaction using the molymod kit Combustion reactions Explain the similarities and differences between combustion and respiration. (compare combustion and respiration as processes which both release energy but occur at different rates) Corrosion reactions Practical: Investigate factors affecting corrosion of iron nails Precipitation reactions Practical: Perform a range of precipitate reactions and write word equations. Extension: Students use the solubility rules to predict the state of products formed in a precipitate reaction. Acid on metals and carbonate reactions: Practical: Perform Metal and acid reactions collect the gas and test it to confirm that it is hydrogen. Compare the reactivity of various metals and relate to their group in the periodic table. Record observations and write a word equation of a metal and acid reaction. Practical: Perform Metal and Carbonate reactions, collect the gas and bubble through lime water to confirm the presence of carbon Dioxide. List the products and reactants in a metal and carbonate reaction and write a word equation. Neutralisation reactions Practical: Perform an acid base reaction and list the products and the reactants. Test the products □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ □ date with an indicator and write a word equation. Write chemical formulas for some common compounds such as water, Carbon Dioxide, Sulfuric Acid, Sodium Hydroxide. use correct suffix (-ide) with nonmetals in a compound Eg Magnesium Sulfide. describe the reactants and products in the processes of photosynthesis and respiration identify that chemical reactions involve energy transfer and can be exothermic or endothermic Identify that chemical reactions can be exothermic or endothermic as they involve energy transfer. Practical –exothermic and endothermic reactions-Students measure temperature change. Identify the effects of factors such as temperature and catalysts on the rate of some common chemical reactions Explain rate of chemical reactions Identify factors that effect rate of chemical reactions Practical: Explain the effect of temperature and catalyst on rate of chemical reactions. Discuss how ethical and environmental considerations influence decisions about scientific research related to the development and production of new materials Research how ethical and environmental considerations influence decisions about scientific research related to the development and production of new materials TOPIC TEST □ □ □ □ □ □ □ □
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