Chemical properties-3-Displacement reactions of metals/halogens lesson created in accordance to the Pearsons BTEC national specification for applied science. The specification mentions a lot of chemical properties so i have separated into three lessons. In this third and final lesson in A2 series i have covered displacement reactions of metals/halogens uses and applications of substances produced within this unit. This new specification requires students to sit an externally assessed examination in January. Includes slide animations and practice questions with answers on slides. Relevant chapter: Principles and applications of science. Pearson Applied science (Student 1) textbook-Page 35-36

C12-Using Earths resources-Finite and renewable resources lesson created in accordance to the NEW AQA Specification (9-1). Designed for a low ability year 11 class, although content can be adjusted to suit any ability. Includes: slide animations, embedded videos and practice questions with answers on slides as well as a interactive review task. If for any reason the video link does not work, a URL has also been included in the notes. NB: order of magnitude was not taught in this lesson. AQA spec link: 5.10.1.1 Humans use the Earth’s resources to provide warmth, shelter, food and transport. Natural resources, supplemented by agriculture, provide food, timber, clothing and fuels. Finite resources from the Earth, oceans and atmosphere are processed to provide energy and materials. Chemistry plays an important role in improving agricultural and industrial processes to provide new products and in sustainable development, which is development that meets the needs of current generations without compromising the ability of future generations to meet their own needs. Students should be able to: •• state examples of natural products that are supplemented or replaced by agricultural and synthetic products •• distinguish between finite and renewable resources given appropriate information

C12-Using Earths resources-Treating waste water lesson created in accordance to the NEW AQA Specification (9-1). Designed for a low ability year 11 class, although content can be adjusted to suit any ability. Includes: slide animations, embedded videos and practice questions with answers on slides as well as a interactive review task. If for any reason the video link does not work, a URL has also been included in the notes. AQA spec link: 5.10.1.3 Urban lifestyles and industrial processes produce large amounts of waste water that require treatment before being released into the environment. Sewage and agricultural waste water require removal of organic matter and harmful microbes. Industrial waste water may require removal of organic matter and harmful chemicals. Sewage treatment includes: •• screening and grit removal •• sedimentation to produce sewage sludge and effluent •• anaerobic digestion of sewage sludge •• aerobic biological treatment of effluent. Students should be able to comment on the relative ease of obtaining potable water from waste, ground and salt water.

Please note this lesson has recently been updated C12-Using Earths resources-Life cycle assessment lesson created in accordance to the NEW AQA Specification (9-1). Designed for a mixed ability year 11 class, although content can be adjusted to suit any ability. Includes: slide animations, embedded videos and practice questions with answers on slides as well as a interactive review task. If for any reason the video link does not work, a URL has also been included in the notes. [NB: C12.4 on extracting metal ores is only for HT students] AQA spec link: 5.10.2.1 environmental impact of products in each of these stages: •• extracting and processing raw materials •• manufacturing and packaging •• use and operation during its lifetime •• disposal at the end of its useful life, including transport and distribution at each stage. Use of water, resources, energy sources and production of some wastes can be fairly easily quantified. Allocating numerical values to pollutant effects is less straightforward and requires value judgements, so LCA is not a purely objective process. Selective or abbreviated LCAs can be devised to evaluate a product but these can be misused to reach pre-determined conclusions, eg in support of claims for advertising purposes. Students should be able to carry out simple comparative LCAs for shopping bags made from plastic and paper.

C12-Chemical analysis- Water purification required practical-lesson created in accordance to the NEW AQA Specification (9-1). Designed for a low ability year 11 class, although content can be adjusted to suit any ability. Includes: slide animations and practice questions with answers on slides as well as a interactive review task. Top tips*I recommend each group is assigned one type of water for dissolved salts part of experiment, collate the results as a class in the end-it'll take forever otherwise. Also, demo the distillation process for a low ability class. AQA spec link: 5.10.1.2 Required practical activity 13: analysis and purification of water samples from different sources, including pH, dissolved solids and distillation. AT skills covered by this practical activity: chemistry AT 2, 3 and 4. This practical activity also provides opportunities to develop WS and MS. Details of all skills are given in Key opportunities for skills development.