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STEM Ambassador Let Teachers Shine Winner (2017) Let Teachers Shine Winner (2016) Lead Practitioner (2015) Teaching Award Judge (2015) HOD Science & Maths (2013) HOD Science (2012) Advanced Skills Teacher (2011) Outstanding New Teacher SW (2010).

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STEM Ambassador Let Teachers Shine Winner (2017) Let Teachers Shine Winner (2016) Lead Practitioner (2015) Teaching Award Judge (2015) HOD Science & Maths (2013) HOD Science (2012) Advanced Skills Teacher (2011) Outstanding New Teacher SW (2010).
Digestion multiple choice quiz
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Digestion multiple choice quiz

(0)
A great task that can be used as an assessment tool for a starter, mini-plenary or revision task. This works best when students have pre-made cards to select answer, voting kits or white boards. Students can also complete as a quiz in the back of their books. Covers: digestion, enzymes, small intestine, organs
Babies - Student Booklet - Reproduction and having a baby
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Babies - Student Booklet - Reproduction and having a baby

(0)
This booklet supports a series of lesson and is designed for Entry Level/SEND students to allow them to access the key elements of science. If used in a mixed ability class, these booklets allow students to keep pace with the rest of the class whilst personalising the challenge and support they require. The booklet is part of a series of booklets with a variety of tasks including matching keywords and definition, scaffolding, extended answers, research and a lot of practical work with matching results tables/graphs. Some of the diagrams have had to be removed for copyright.
NEW Lesson 11 Osmosis 2  Biology Combined Science Trilogy (AQA) – Paper 1
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NEW Lesson 11 Osmosis 2 Biology Combined Science Trilogy (AQA) – Paper 1

(0)
This lesson is from the series of lessons that I have created for the New Combined Science Trilogy course and are linked to the new AQA specification. Each lesson varies in its content and are sold individually but they are also available as a complete BUNDLE (see bundles and SAVE). Lessons include: - Lesson Plan – a clear overview of the lesson, links to specification, three main objectives, keywords, resources, starters, 3 main activities and plenaries. Ideas are also included for differentiation for lower and more able students. - PowerPoint – with lesson objectives and keywords on each slide. - Additional resources – printable sheets for starters/plenaries/investigations. - Support sheets – guidance for demonstrations and practical activities All of these lessons will be continually updated and so please continue to revisit these resources for the most up to date resources. If you have purchased the draft specification lessons, please email for the instructions on how to get your lessons updated to the new specification – orders@achieveinscience.com Lessons in the series include: 1 Animal and plant cells 2 Bacteria cells 3 Specialised cells 4 Microscopy 5 Mitosis and cell cycle 6 Stem cells 7 Stem cells debate 8 Diffusion 9 Diffusion 2 10 Osmosis 11 Osmosis 2 12 Active Transport 13 Tissues and organs 14 Enzymes 15 Enzymes and pH/ Enzymes and temperature 16 Enzymes in digestion/ Speeding up digestion 17 Structure and function of the heart 18 Pacemakers 19 Breathing 20 Blood vessels 21 Blood 22 Artificial hearts, valves and stents 23 A healthy diet 24 Inheritance, exercise and health 25 Drugs 26 Cancer 27 Transport in plants 28 Transport in plants 2 29 Transpiration 30 Pathogens and disease 31 Microbial case studies 32 Defence mechanisms 33 Immunity and vaccination 34 Drugs for disease 35 Developing new drugs 36 Developing new drugs 37 Photosynthesis 38 Limiting factors 39 Limiting factors 40 Aerobic respiration 41 Anaerobic respiration 42 Effect of exercise 43 Metabolism
NEW Lesson  9 Diffusion 2 Biology Combined Science Trilogy (AQA) – Paper 1
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NEW Lesson 9 Diffusion 2 Biology Combined Science Trilogy (AQA) – Paper 1

(0)
This lesson is from the series of lessons that I have created for the New Combined Science Trilogy course and are linked to the new AQA specification. Each lesson varies in its content and are sold individually but they are also available as a complete BUNDLE (see bundles and SAVE). Lessons include: - Lesson Plan – a clear overview of the lesson, links to specification, three main objectives, keywords, resources, starters, 3 main activities and plenaries. Ideas are also included for differentiation for lower and more able students. - PowerPoint – with lesson objectives and keywords on each slide. - Additional resources – printable sheets for starters/plenaries/investigations. - Support sheets – guidance for demonstrations and practical activities All of these lessons will be continually updated and so please continue to revisit these resources for the most up to date resources. If you have purchased the draft specification lessons, please email for the instructions on how to get your lessons updated to the new specification – orders@achieveinscience.com Lessons in the series include: 1 Animal and plant cells 2 Bacteria cells 3 Specialised cells 4 Microscopy 5 Mitosis and cell cycle 6 Stem cells 7 Stem cells debate 8 Diffusion 9 Diffusion 2 10 Osmosis 11 Osmosis 2 12 Active Transport 13 Tissues and organs 14 Enzymes 15 Enzymes and pH/ Enzymes and temperature 16 Enzymes in digestion/ Speeding up digestion 17 Structure and function of the heart 18 Pacemakers 19 Breathing 20 Blood vessels 21 Blood 22 Artificial hearts, valves and stents 23 A healthy diet 24 Inheritance, exercise and health 25 Drugs 26 Cancer 27 Transport in plants 28 Transport in plants 2 29 Transpiration 30 Pathogens and disease 31 Microbial case studies 32 Defence mechanisms 33 Immunity and vaccination 34 Drugs for disease 35 Developing new drugs 36 Developing new drugs 37 Photosynthesis 38 Limiting factors 39 Limiting factors 40 Aerobic respiration 41 Anaerobic respiration 42 Effect of exercise 43 Metabolism
NEW Lesson 14 Enzymes  Biology Combined Science Trilogy (AQA) – Paper 1
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NEW Lesson 14 Enzymes Biology Combined Science Trilogy (AQA) – Paper 1

(0)
This lesson is from the series of lessons that I have created for the New Combined Science Trilogy course and are linked to the new AQA specification. Each lesson varies in its content and are sold individually but they are also available as a complete BUNDLE (see bundles and SAVE). Lessons include: - Lesson Plan – a clear overview of the lesson, links to specification, three main objectives, keywords, resources, starters, 3 main activities and plenaries. Ideas are also included for differentiation for lower and more able students. - PowerPoint – with lesson objectives and keywords on each slide. - Additional resources – printable sheets for starters/plenaries/investigations. - Support sheets – guidance for demonstrations and practical activities All of these lessons will be continually updated and so please continue to revisit these resources for the most up to date resources. If you have purchased the draft specification lessons, please email for the instructions on how to get your lessons updated to the new specification – orders@achieveinscience.com Lessons in the series include: 1 Animal and plant cells 2 Bacteria cells 3 Specialised cells 4 Microscopy 5 Mitosis and cell cycle 6 Stem cells 7 Stem cells debate 8 Diffusion 9 Diffusion 2 10 Osmosis 11 Osmosis 2 12 Active Transport 13 Tissues and organs 14 Enzymes 15 Enzymes and pH/ Enzymes and temperature 16 Enzymes in digestion/ Speeding up digestion 17 Structure and function of the heart 18 Pacemakers 19 Breathing 20 Blood vessels 21 Blood 22 Artificial hearts, valves and stents 23 A healthy diet 24 Inheritance, exercise and health 25 Drugs 26 Cancer 27 Transport in plants 28 Transport in plants 2 29 Transpiration 30 Pathogens and disease 31 Microbial case studies 32 Defence mechanisms 33 Immunity and vaccination 34 Drugs for disease 35 Developing new drugs 36 Developing new drugs 37 Photosynthesis 38 Limiting factors 39 Limiting factors 40 Aerobic respiration 41 Anaerobic respiration 42 Effect of exercise 43 Metabolism
Control Systems - Student Booklet
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Control Systems - Student Booklet

(0)
This booklet supports a series of lesson and is designed for Entry Level/SEND students to allow them to access the key elements of science. If used in a mixed ability class, these booklets allow students to keep pace with the rest of the class whilst personalising the challenge and support they require. The booklet is part of a series of booklets with a variety of tasks including matching keywords and definition, scaffolding, extended answers, research and a lot of practical work with matching results tables/graphs. Some of the diagrams have had to be removed for copyright.
Genetics multiple choice quiz
ScuttscienceScuttscience

Genetics multiple choice quiz

(0)
A great task that can be used as an assessment tool for a starter, mini-plenary or revision task. This works best when students have pre-made cards to select answer, voting kits or white boards. Students can also complete as a quiz in the back of their books. Covers: genes, chromosomes, alleles, variation, genotype, phenotype
Gasping for Breath Student Booklet - breathing, circulation
ScuttscienceScuttscience

Gasping for Breath Student Booklet - breathing, circulation

(0)
This booklet supports a series of lesson and is designed for Entry Level/SEND students to allow them to access the key elements of science. If used in a mixed ability class, these booklets allow students to keep pace with the rest of the class whilst personalising the challenge and support they require. The booklet is part of a series of booklets with a variety of tasks including matching keywords and definition, scaffolding, extended answers, research and a lot of practical work with matching results tables/graphs. Some of the diagrams have had to be removed for copyright.
Decay and the Carbon Cycle
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Decay and the Carbon Cycle

(0)
Linked to AQA Core Science Includes the main areas within the lesson via PowerPoint and accompanying tasks. Bingo cards and questions included.
Bath Bombs and Extracting DNA powerpoints
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Bath Bombs and Extracting DNA powerpoints

(0)
PowerPoints to accompany DNA extraction and making Bath Bombs. Activities and other memorable and engaging investigations can be found in booklet available. Search for scuttscience Memorable and Engaging Practicals.
NEW Lesson 15 Using Enzymes Biology Combined Science Trilogy (AQA) – Paper 1
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NEW Lesson 15 Using Enzymes Biology Combined Science Trilogy (AQA) – Paper 1

(0)
This lesson is from the series of lessons that I have created for the New Combined Science Trilogy course and are linked to the new AQA specification. Each lesson varies in its content and are sold individually but they are also available as a complete BUNDLE (see bundles and SAVE). Lessons include: - Lesson Plan – a clear overview of the lesson, links to specification, three main objectives, keywords, resources, starters, 3 main activities and plenaries. Ideas are also included for differentiation for lower and more able students. - PowerPoint – with lesson objectives and keywords on each slide. - Additional resources – printable sheets for starters/plenaries/investigations. - Support sheets – guidance for demonstrations and practical activities All of these lessons will be continually updated and so please continue to revisit these resources for the most up to date resources. If you have purchased the draft specification lessons, please email for the instructions on how to get your lessons updated to the new specification – orders@achieveinscience.com Lessons in the series include: 1 Animal and plant cells 2 Bacteria cells 3 Specialised cells 4 Microscopy 5 Mitosis and cell cycle 6 Stem cells 7 Stem cells debate 8 Diffusion 9 Diffusion 2 10 Osmosis 11 Osmosis 2 12 Active Transport 13 Tissues and organs 14 Enzymes 15 Enzymes and pH/ Enzymes and temperature 16 Enzymes in digestion/ Speeding up digestion 17 Structure and function of the heart 18 Pacemakers 19 Breathing 20 Blood vessels 21 Blood 22 Artificial hearts, valves and stents 23 A healthy diet 24 Inheritance, exercise and health 25 Drugs 26 Cancer 27 Transport in plants 28 Transport in plants 2 29 Transpiration 30 Pathogens and disease 31 Microbial case studies 32 Defence mechanisms 33 Immunity and vaccination 34 Drugs for disease 35 Developing new drugs 36 Developing new drugs 37 Photosynthesis 38 Limiting factors 39 Limiting factors 40 Aerobic respiration 41 Anaerobic respiration 42 Effect of exercise 43 Metabolism Update 21/09/16 - L15 Biology - method for pH of enzyme method changed
NEW Lesson 31 Microbial Case Study Biology Combined Science Trilogy (AQA) – Paper 1
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NEW Lesson 31 Microbial Case Study Biology Combined Science Trilogy (AQA) – Paper 1

(0)
This lesson is from the series of lessons that I have created for the New Combined Science Trilogy course and are linked to the new AQA specification. Each lesson varies in its content and are sold individually but they are also available as a complete BUNDLE (see bundles and SAVE). Lessons include: - Lesson Plan – a clear overview of the lesson, links to specification, three main objectives, keywords, resources, starters, 3 main activities and plenaries. Ideas are also included for differentiation for lower and more able students. - PowerPoint – with lesson objectives and keywords on each slide. - Additional resources – printable sheets for starters/plenaries/investigations. - Support sheets – guidance for demonstrations and practical activities All of these lessons will be continually updated and so please continue to revisit these resources for the most up to date resources. If you have purchased the draft specification lessons, please email for the instructions on how to get your lessons updated to the new specification – orders@achieveinscience.com Lessons in the series include: 1 Animal and plant cells 2 Bacteria cells 3 Specialised cells 4 Microscopy 5 Mitosis and cell cycle 6 Stem cells 7 Stem cells debate 8 Diffusion 9 Diffusion 2 10 Osmosis 11 Osmosis 2 12 Active Transport 13 Tissues and organs 14 Enzymes 15 Enzymes and pH/ Enzymes and temperature 16 Enzymes in digestion/ Speeding up digestion 17 Structure and function of the heart 18 Pacemakers 19 Breathing 20 Blood vessels 21 Blood 22 Artificial hearts, valves and stents 23 A healthy diet 24 Inheritance, exercise and health 25 Drugs 26 Cancer 27 Transport in plants 28 Transport in plants 2 29 Transpiration 30 Pathogens and disease 31 Microbial case studies 32 Defence mechanisms 33 Immunity and vaccination 34 Drugs for disease 35 Developing new drugs 36 Developing new drugs 37 Photosynthesis 38 Limiting factors 39 Limiting factors 40 Aerobic respiration 41 Anaerobic respiration 42 Effect of exercise 43 Metabolism
NEW Lesson 34 Drugs for diease  Biology Combined Science Trilogy (AQA) – Paper 1
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NEW Lesson 34 Drugs for diease Biology Combined Science Trilogy (AQA) – Paper 1

(0)
This lesson is from the series of lessons that I have created for the New Combined Science Trilogy course and are linked to the new AQA specification. Each lesson varies in its content and are sold individually but they are also available as a complete BUNDLE (see bundles and SAVE). Lessons include: - Lesson Plan – a clear overview of the lesson, links to specification, three main objectives, keywords, resources, starters, 3 main activities and plenaries. Ideas are also included for differentiation for lower and more able students. - PowerPoint – with lesson objectives and keywords on each slide. - Additional resources – printable sheets for starters/plenaries/investigations. - Support sheets – guidance for demonstrations and practical activities All of these lessons will be continually updated and so please continue to revisit these resources for the most up to date resources. If you have purchased the draft specification lessons, please email for the instructions on how to get your lessons updated to the new specification – orders@achieveinscience.com Lessons in the series include: 1 Animal and plant cells 2 Bacteria cells 3 Specialised cells 4 Microscopy 5 Mitosis and cell cycle 6 Stem cells 7 Stem cells debate 8 Diffusion 9 Diffusion 2 10 Osmosis 11 Osmosis 2 12 Active Transport 13 Tissues and organs 14 Enzymes 15 Enzymes and pH/ Enzymes and temperature 16 Enzymes in digestion/ Speeding up digestion 17 Structure and function of the heart 18 Pacemakers 19 Breathing 20 Blood vessels 21 Blood 22 Artificial hearts, valves and stents 23 A healthy diet 24 Inheritance, exercise and health 25 Drugs 26 Cancer 27 Transport in plants 28 Transport in plants 2 29 Transpiration 30 Pathogens and disease 31 Microbial case studies 32 Defence mechanisms 33 Immunity and vaccination 34 Drugs for disease 35 Developing new drugs 36 Developing new drugs 37 Photosynthesis 38 Limiting factors 39 Limiting factors 40 Aerobic respiration 41 Anaerobic respiration 42 Effect of exercise 43 Metabolism
NEW Lesson 36 Developing New Drugs 2  Biology Combined Science Trilogy (AQA) – Paper 1
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NEW Lesson 36 Developing New Drugs 2 Biology Combined Science Trilogy (AQA) – Paper 1

(0)
This lesson is from the series of lessons that I have created for the New Combined Science Trilogy course and are linked to the new AQA specification. Each lesson varies in its content and are sold individually but they are also available as a complete BUNDLE (see bundles and SAVE). Lessons include: - Lesson Plan – a clear overview of the lesson, links to specification, three main objectives, keywords, resources, starters, 3 main activities and plenaries. Ideas are also included for differentiation for lower and more able students. - PowerPoint – with lesson objectives and keywords on each slide. - Additional resources – printable sheets for starters/plenaries/investigations. - Support sheets – guidance for demonstrations and practical activities All of these lessons will be continually updated and so please continue to revisit these resources for the most up to date resources. If you have purchased the draft specification lessons, please email for the instructions on how to get your lessons updated to the new specification – orders@achieveinscience.com Lessons in the series include: 1 Animal and plant cells 2 Bacteria cells 3 Specialised cells 4 Microscopy 5 Mitosis and cell cycle 6 Stem cells 7 Stem cells debate 8 Diffusion 9 Diffusion 2 10 Osmosis 11 Osmosis 2 12 Active Transport 13 Tissues and organs 14 Enzymes 15 Enzymes and pH/ Enzymes and temperature 16 Enzymes in digestion/ Speeding up digestion 17 Structure and function of the heart 18 Pacemakers 19 Breathing 20 Blood vessels 21 Blood 22 Artificial hearts, valves and stents 23 A healthy diet 24 Inheritance, exercise and health 25 Drugs 26 Cancer 27 Transport in plants 28 Transport in plants 2 29 Transpiration 30 Pathogens and disease 31 Microbial case studies 32 Defence mechanisms 33 Immunity and vaccination 34 Drugs for disease 35 Developing new drugs 36 Developing new drugs 37 Photosynthesis 38 Limiting factors 39 Limiting factors 40 Aerobic respiration 41 Anaerobic respiration 42 Effect of exercise 43 Metabolism
Building bodies - Student Booklet - Food, vitamins
ScuttscienceScuttscience

Building bodies - Student Booklet - Food, vitamins

(0)
This booklet supports a series of lesson and is designed for Entry Level/SEND students to allow them to access the key elements of science. If used in a mixed ability class, these booklets allow students to keep pace with the rest of the class whilst personalising the challenge and support they require. The booklet is part of a series of booklets with a variety of tasks including matching keywords and definition, scaffolding, extended answers, research and a lot of practical work with matching results tables/graphs. Some of the diagrams have had to be removed for copyright.
Energy in Biomass
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Energy in Biomass

(0)
Linked to AQA Core Science Includes the main areas within the lesson via PowerPoint and accompanying tasks.
NEW Lesson 25 Drugs  Biology Combined Science Trilogy (AQA) – Paper 1
ScuttscienceScuttscience

NEW Lesson 25 Drugs Biology Combined Science Trilogy (AQA) – Paper 1

(0)
This lesson is from the series of lessons that I have created for the New Combined Science Trilogy course and are linked to the new AQA specification. Each lesson varies in its content and are sold individually but they are also available as a complete BUNDLE (see bundles and SAVE). Lessons include: - Lesson Plan – a clear overview of the lesson, links to specification, three main objectives, keywords, resources, starters, 3 main activities and plenaries. Ideas are also included for differentiation for lower and more able students. - PowerPoint – with lesson objectives and keywords on each slide. - Additional resources – printable sheets for starters/plenaries/investigations. - Support sheets – guidance for demonstrations and practical activities All of these lessons will be continually updated and so please continue to revisit these resources for the most up to date resources. If you have purchased the draft specification lessons, please email for the instructions on how to get your lessons updated to the new specification – orders@achieveinscience.com Lessons in the series include: 1 Animal and plant cells 2 Bacteria cells 3 Specialised cells 4 Microscopy 5 Mitosis and cell cycle 6 Stem cells 7 Stem cells debate 8 Diffusion 9 Diffusion 2 10 Osmosis 11 Osmosis 2 12 Active Transport 13 Tissues and organs 14 Enzymes 15 Enzymes and pH/ Enzymes and temperature 16 Enzymes in digestion/ Speeding up digestion 17 Structure and function of the heart 18 Pacemakers 19 Breathing 20 Blood vessels 21 Blood 22 Artificial hearts, valves and stents 23 A healthy diet 24 Inheritance, exercise and health 25 Drugs 26 Cancer 27 Transport in plants 28 Transport in plants 2 29 Transpiration 30 Pathogens and disease 31 Microbial case studies 32 Defence mechanisms 33 Immunity and vaccination 34 Drugs for disease 35 Developing new drugs 36 Developing new drugs 37 Photosynthesis 38 Limiting factors 39 Limiting factors 40 Aerobic respiration 41 Anaerobic respiration 42 Effect of exercise 43 Metabolism
NEW Lesson 24 Inheritance, exercise &~ health  Biology Combined Science Trilogy (AQA) – Paper 1
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NEW Lesson 24 Inheritance, exercise &~ health Biology Combined Science Trilogy (AQA) – Paper 1

(0)
This lesson is from the series of lessons that I have created for the New Combined Science Trilogy course and are linked to the new AQA specification. Each lesson varies in its content and are sold individually but they are also available as a complete BUNDLE (see bundles and SAVE). Lessons include: - Lesson Plan – a clear overview of the lesson, links to specification, three main objectives, keywords, resources, starters, 3 main activities and plenaries. Ideas are also included for differentiation for lower and more able students. - PowerPoint – with lesson objectives and keywords on each slide. - Additional resources – printable sheets for starters/plenaries/investigations. - Support sheets – guidance for demonstrations and practical activities All of these lessons will be continually updated and so please continue to revisit these resources for the most up to date resources. If you have purchased the draft specification lessons, please email for the instructions on how to get your lessons updated to the new specification – orders@achieveinscience.com Lessons in the series include: 1 Animal and plant cells 2 Bacteria cells 3 Specialised cells 4 Microscopy 5 Mitosis and cell cycle 6 Stem cells 7 Stem cells debate 8 Diffusion 9 Diffusion 2 10 Osmosis 11 Osmosis 2 12 Active Transport 13 Tissues and organs 14 Enzymes 15 Enzymes and pH/ Enzymes and temperature 16 Enzymes in digestion/ Speeding up digestion 17 Structure and function of the heart 18 Pacemakers 19 Breathing 20 Blood vessels 21 Blood 22 Artificial hearts, valves and stents 23 A healthy diet 24 Inheritance, exercise and health 25 Drugs 26 Cancer 27 Transport in plants 28 Transport in plants 2 29 Transpiration 30 Pathogens and disease 31 Microbial case studies 32 Defence mechanisms 33 Immunity and vaccination 34 Drugs for disease 35 Developing new drugs 36 Developing new drugs 37 Photosynthesis 38 Limiting factors 39 Limiting factors 40 Aerobic respiration 41 Anaerobic respiration 42 Effect of exercise 43 Metabolism 21/09/16 - L24 sorting task added
NEW Lesson 27 Transport in Plants  Biology Combined Science Trilogy (AQA) – Paper 1
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NEW Lesson 27 Transport in Plants Biology Combined Science Trilogy (AQA) – Paper 1

(0)
This lesson is from the series of lessons that I have created for the New Combined Science Trilogy course and are linked to the new AQA specification. Each lesson varies in its content and are sold individually but they are also available as a complete BUNDLE (see bundles and SAVE). Lessons include: - Lesson Plan – a clear overview of the lesson, links to specification, three main objectives, keywords, resources, starters, 3 main activities and plenaries. Ideas are also included for differentiation for lower and more able students. - PowerPoint – with lesson objectives and keywords on each slide. - Additional resources – printable sheets for starters/plenaries/investigations. - Support sheets – guidance for demonstrations and practical activities All of these lessons will be continually updated and so please continue to revisit these resources for the most up to date resources. If you have purchased the draft specification lessons, please email for the instructions on how to get your lessons updated to the new specification – orders@achieveinscience.com Lessons in the series include: 1 Animal and plant cells 2 Bacteria cells 3 Specialised cells 4 Microscopy 5 Mitosis and cell cycle 6 Stem cells 7 Stem cells debate 8 Diffusion 9 Diffusion 2 10 Osmosis 11 Osmosis 2 12 Active Transport 13 Tissues and organs 14 Enzymes 15 Enzymes and pH/ Enzymes and temperature 16 Enzymes in digestion/ Speeding up digestion 17 Structure and function of the heart 18 Pacemakers 19 Breathing 20 Blood vessels 21 Blood 22 Artificial hearts, valves and stents 23 A healthy diet 24 Inheritance, exercise and health 25 Drugs 26 Cancer 27 Transport in plants 28 Transport in plants 2 29 Transpiration 30 Pathogens and disease 31 Microbial case studies 32 Defence mechanisms 33 Immunity and vaccination 34 Drugs for disease 35 Developing new drugs 36 Developing new drugs 37 Photosynthesis 38 Limiting factors 39 Limiting factors 40 Aerobic respiration 41 Anaerobic respiration 42 Effect of exercise 43 Metabolism