Scope and Sequence MYP 4 (2013-14) Work Unit Assessment Approaches 1. State of matter -Introduction to and importance of Chemistry -Lab safety -Hazard labels -Observation exercise* -State of matter and changes of state -Physical properties (m.p, b.p., solubility etc) -Separation methods (filtration, evaporation, crystallisation, chromatography, distillation*) -Distillation demo, -Lab (separation of mixtures) Lab Filtering Pond Water (DEF) Labs, demonstrations, worksheet 2. Atoms - Periodic table* and histories behind -Mark metals, non-metals and semi-metals with colours -sub-atomic particles (protons, neutrons and electrons) up to Ca -Calculation of numbers of sub-atomic particles* -Electron configuration -Isotopes, definition, their use, calculation of relative atomic mass -Define groups (group 1, 7 and 0) and periodicity -Alkaline metal (group 1) with water (demo), chemical equations -Flame tests (group1 and 2 metals) Famous scientist who contributed to the atomic theory poster (AB) 3. Chemical Bonding - Covalent Bonding - Macromolecules (diamond and graphite) - Ionic Bonding - Metallic Bonding - Drawing atomic structure of ionic compounds, covalent compounds and metallic structure - Physical properties of covalent compounds, ionic compounds and metals - Compound ions - Writing balancing equations - Semester exam 4.Different types of reactions - Chemical change and physical change Chemical bonding lab (DEF) Labs, Presentation, PPT Discussions Creative Writing, Class Discussions, HW,Tests, exam (C) Physical and Chemical Changes Lab (formative) Conservation of mass lab (formative) Labs, Presentation, PPT Discussions Creative Writing, Class Discussions, HW,Tests (C) - Conservation of mass Forensic Chemistry (DF) Test (C) Advertising elements (AB) Semester exam (C) Internet research, demonstration, video (youtube-brainiac alkali metals), worksheet, on-line reading (Visionlearningperiodic table of elements), computer simulation, tests (C) -The mole concept 5. Acids and bases What are acids and bases? - General properties of acid: sour, corrosive - General properties of bases: bitter, slippery, corrosive - Acid found in food and drinks - Bases found in cleaning agent - Natural indicator (flower petals/red cabbage) - Litmus paper/pH paper/Universal indicator What do we mean by ‘acids are corrosive’? - Acid corrodes metals and building materials - Reaction between metals and acid gives hydrogen. - Reaction between calcium carbonate and acid gives carbon dioxide. What do we mean by ‘strong and concentrated acid or base’? - Determination of the relative strength of acid and bases. - Explanation of the difference between strength and concentration. - Safety precautions for handling strong acids and bases. Magnesium Oxide Lab (formative) Poster of acids and alkalis in our daily life (formative) Natural indicator lab (formative) Preservation of fruit in acid (DEF) Determination of pH in different daily products lab (formative) Labs, Presentation, PPT Discussions Creative Writing, Class Discussions, HW,Tests (C) Reaction of acid with metals and metal carbonate lab (formative) Investigating strong and weak acid lab. Demo of concentrated sulfuric acid as a dehydrating agent. What are salts and why are they important? - Neutralisation reactions - The daily use of neutralization - Predicting salt that will be formed in a neutralization - Practical methods for making salts. Acid rain and how does it form? - Fossil fuels as a source of sulfur. - Sulfur dioxide and nitrogen oxides in forming acid rain - The impacts of acid rain in the environment - Ways to reduce acid rain 6. Metals Metals are extracted from ores by a variety Making insoluble oxides and carbonates, and soluble hydroxides and carbonates by neutralization lab (formative) Growing plant at different pH in seedling. Essay on the cause, effect and tackling of acid rain (AB) Labs, Presentation, PPT Discussions Creative of methods depending on their reactivity. Writing, Class Discussions, HW, - Explain why extraction of metals is needed - State what is meant by a native metal and how they are extracted - Relate the ease of obtaining metals from their ores to reactivity of their metals Deduce the order of discovery of some metals from their relative ease of extraction Metals Test C Metals of intermediate reactivity are usually Thermit reaction extracted by displacement reactions - Describe and explain displacement reactions of various metals and metal compounds in solutions - Construct reactivity series based on displacement reactions - Explain the extraction of some metals by displacement Displacement lab (formative) Deduction of reactivity series of metals (DEF) Water and oxygen are required for rusting, but the process is subject to all factors that affect a chemical reaction - State what rusting is - Observe a rust indicator in an experiment to investigate rusting - Investigate the factors that influence rusting - Explain the factors that influence the speed of rusting The effectiveness of a method of rust prevention depends on the circumstances, however the most effective method is not the always the most economical - Describe various methods of rust prevention including alloying and galvanising - Evaluate appropriate methods to prevent rusting based on socio-economic and technological considerations The susceptibility of a metal to corrosion depends on its reactivity, which is a key factor in determining usefulness in a structural role - Explain the difference between rusting and corrosion - Relate the corrosion risk of metals to their reactivity - Describe the anodisation of aluminium in Rusting investigation (DEF) simple terms Metals are simple to recycle and this saves a very large proportion of the energy needed to produce new metal from scratch - Describe the effects of the toxic byproducts associated with the use of lead and aluminium - Explain the environmental benefits of recycling metals and preventing corrosion in terms of saving energy - Research the metal recycling industry of UK and measures for conserving resources in the world Metal recycling essay/presentation/poster (AB) 7. Organic Chemistry Fossil fuels are a finite resource - Define and describe fossil fuels - Define hydrocarbon - Understand that the combustion of hydrocarbons is an exothermic reaction - Describe the origin of fossil fuels starting with photosynthesis Burning hexane and alcohol (demo) Combustion of alcohols DEF Petrol Chemistry and it applications - How to separate crude oil by fractional distillation - Understand the economic importance of crude oil - Explain the demand for various fractions of crude oil including branched and unbranched alkanes Cracking demo Simulation of fractional distillation Labs, Presentation, PPT Discussions Creative Writing, Class Discussions, HW,Tests (C) - Polymers (plastics) Making polymers. The impact of using fossil fuels on our lives and environment - Suggest measures for reducing the emission of air pollutants from combustion of fossil fuels Presentation on Ethanol - Explain that biofuels are chemically production AB similar to fossil fuels - Discuss the suitability of biofuels as a replacement for fossil fuels - Describe Earth’s prehistoric climate in terms of atmospheric changes What is meant by homologous series? - State the structural and general formulae of alkanes - Give systematic names of alkanes - Recognize that alkanes are saturated and know what is meant by this in terms of alkanes/alkenes - State the test for unsaturation Apply the concept of (un)saturation to fats and oils - Describe the hydrogenation of oils and explain its importance - Recognize the dangers associated with trans-fats Alcohols - Homologous series of alcohols - Manufacturing alcohols - Ethanol as a fuel and its relation with the global warming