Companion PDF worksheet for Edexcel IGCSE Chemistry Lecture 36 - Esters. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Specification Point 4.38C - Know that esters contain the functional group -COO-. Specification Point 4.39C - Know that ethyl ethanoate is the ester produced when ethanol and ethanoic acid react in the presence of an acid catalyst. Specification Point 4.40C - Understand how to write the structural and displayed formulae of ethyl ethanoate. Specification Point 4.41C - Understand how to write the structural and displayed formulae of an ester, given the name or formula of the alcohol and carboxylic acid from which it is formed and vice versa. Specification Point 4.42C - Know that esters are volatile compounds with distinctive smells and are used as food flavourings and in perfumes. Specification Point 4.43C - Practical: prepare a sample of an ester such as ethyl ethanoate.

Complete set of companion PDF worksheets for Edexcel IGCSE Chemistry (4CH1) Chapter 7 - Organic Chemistry. Contains short answer questions, an activity requiring lateral thinking and exam-style questions. Eight worksheets included: 31 - Organic Compounds 32 - Crude Oil 33 - Burning Hydrocarbons 34 - Alkanes and Alkenes 35 - Organic Compounds Part 2 36 - Esters 37 - Addition Polymers 38 - Condensation Polymers

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.3 - Attachment. Explanations of attachment: learning theory and Bowlby’s monotropic theory. The concepts of a critical period and an internal working model. Complete set of Chapter 3 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.3 - Attachment. Bowlby’s theory of maternal deprivation. Complete set of Chapter 3 Lectures are available.

Complete set of concise, modern presentations for AQA A Level Psychology (7181 and 7182) Chapter 2 - Memory. Contains colour coded specification points. Four presentations included: 5 - Types of Memory 6 - Memory Models 7 - Forgetting 8 - Eyewitness Testimony

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.2 - Memory. Explanations for forgetting: proactive and retroactive interference and retrieval failure due to absence of cues. Complete set of Chapter 2 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 3.1.2 - Memory. The multi-store model of memory: sensory register, short-term memory and long-term memory. Features of each store: coding, capacity and duration. Complete set of Chapter 2 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.2.1 - Approaches in psychology. Origins of psychology: Wundt, introspection and the emergence of psychology as a science. Complete set of Chapter 5 Lectures are available.

Complete set of concise, modern presentations for AQA A Level Psychology (7181 and 7182) Chapter 4 - Psychopathology. Contains colour coded specification points. Five presentations included: 16 - Abnormality 17 - Depression, Phobias and OCD 18 - The Behavioural Approach to Phobias 19 - The Cognitive Approach to Depression 20 - The Biological Approach to OCD

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.2.1 - Approaches in psychology. The cognitive approach: the study of internal mental processes, the role of schema, the use of theoretical and computer models to explain and make inferences about mental processes. The emergence of cognitive neuroscience. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.2.1 - Approaches in psychology. Social learning theory including imitation, identification, modelling, vicarious reinforcement, the role of mediational processes and Bandura’s research. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.2.1 - Approaches in psychology. The biological approach: the influence of genes, biological structures and neurochemistry on behaviour. Genotype and phenotype, genetic basis of behaviour, evolution and behaviour. Complete set of Chapter 5 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.2.2 - Biopsychology. The function of the endocrine system: glands and hormones. The fight or flight response including the role of adrenaline. Complete set of Chapter 6 Lectures are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.2.3 - Research Methods. Experimental method. Types of experiment, laboratory and field experiments; natural and quasi-experiments. Observational techniques. Types of observation: naturalistic and controlled observation; covert and overt observation; participant and non-participant observation. Self-report techniques. Questionnaires; interviews, structured and unstructured. Content analysis. Case studies. Correlations. Analysis of the relationship between co-variables. The difference between correlations and experiments. Complete set of Chapter 7 Lectures are available.

Complete set of concise, modern presentations for AQA A Level Psychology (7181 and 7182) Chapter 6 - Biopsychology. Contains colour coded specification points. Five presentations included: 28 - The Nervous System 29 - The Endocrine System 30 - The Brain 31 - Studying the Brain 32 - Biological Rhythms

Powerpoint lecture and associated PDF worksheet covering the following in a modern, concise format: Specification Point 2.1 - Understand how the similarities in the reactions of the group 1 elements with water provide evidence for their recognition as a family of elements. Specification Point 2.2 - Understand how the differences between the reactions of the alkali metals with air and water provide evidence for the trend in reactivity in group 1. Specification Point 2.3 - Use knowledge of trends in group 1 to predict the properties of other alkali metals. Specification Point 2.4C - Explain the trend in reactivity in group 1 in terms of electronic configurations. Complete set of Chapter 4 Lessons are available.

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.2.2 - Biopsychology. The divisions of the nervous system: central and peripheral (somatic and autonomic). The structure and function of sensory, relay and motor neurons. The process of synaptic transmission, including reference to neurotransmitters, excitation and inhibition. Complete set of Chapter 6 Lectures are available.

Complete set of concise, modern presentations for AQA A Level Psychology (7181 and 7182) Chapter 5 - Approaches in Psychology. Contains colour coded specification points. Seven presentations included: 21 - The Origins of Psychology 22 - The Behaviourist Approach 23 - Social Learning Theory 24 - The Cognitive Approach 25 - The Biological Approach 26 - The Psychodynamic Approach 27 - Humanistic Psychology

Powerpoint lecture covering the following in a modern, concise format: Specification Point 4.2.3.1 - Scientific Processes. Pilot studies and the aims of piloting. Experimental designs: repeated measures, independent groups, matched pairs. Observational design: behavioural categories; event sampling; time sampling. Questionnaire construction, including use of open and closed questions; design of interviews. Complete set of Chapter 7 Lectures are available.