Designed for the new specification IGCSE Edexcel course but can be used for other examination boards. Covers: (b) Selective breeding 5.10  understand how selective breeding can develop plants with desired characteristics. 5.11  understand how selective breeding can develop animals with desired characteristics.

Designed for the new specification AQA GCSE( covers spec point 4.7.1 ) course but can be modified for other exam boards. 38 slides covering adaptations : 4.7.1.1 Communities 4.7.1.2 Abiotic factors 4.7.1.3 Biotic factors 4.7.1.4 Adaptations

Designed for the new specification IGCSE Edexcel course but can be used for other examination boards. Covers: a) Food production Fish farming 5.9B understand the methods used to farm large numbers of fish to provide a source of protein, including maintaining water quality, controlling intraspecific and interspecific predation, controlling disease, removing waste products, controlling the quality and frequency of feeding, and selective breeding

Designed for the new specification IGCSE Edexcel course but can be used for other examination boards. Covers: (d) Human influences on the environment 4.12  understand the biological consequences of pollution of air by sulfur dioxide and carbon monoxide 4.13  understand that water vapour, carbon dioxide, nitrous oxide, methane and CFCs are greenhouse gases 4.14  understand how human activities contribute to greenhouse gases 4.15  understand how an increase in greenhouse gases results in an enhanced greenhouse effect and that this may lead to global warming and its consequences 4.16  understand the biological consequences of pollution of water by sewage 4.17  understand the biological consequences of eutrophication caused by leached minerals from fertiliser 4.18B understand the effects of deforestation, including leaching, soil erosion, disturbance of evapotranspiration and the carbon cycle, and the balance of atmospheric gases

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 29 slides covering Inheritance: By the end of the powerpoint students would have covered: 4.6.1.6 Genetic inheritance 4.6.1.7 Inherited disorders 4.6.1.8 Sex determination

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 16 slides covering trophic levels in a ecosystem. By the end of the powerpoint students would have covered: 4.7.4.1 Trophic levels 4.7.4.2 Pyramids of biomass 4.7.4.3 Transfer of biomass

Designed for the new specification IGCSE Edexcel course but can be used for other examination boards. Covers: © Cycles within ecosystems 4.10 describe the stages in the carbon cycle, including respiration, photosynthesis, decomposition and combustion 4.11B describe the stages in the nitrogen cycle, including the roles of nitrogen fixing bacteria, decomposers, nitrifying bacteria and denitrifying bacteria (specific names of bacteria are not required)

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 32 slides covering Cell structure (cell specialisation and cell differentiation). By the end of the powerpoint students would have covered: **4.1.1.3 Cell specialisation ** Students should be able to, when provided with appropriate information, explain how the structure of different types of cell relate to their function in a tissue, an organ or organ system, or the whole organism. Cells may be specialised to carry out a particular function: sperm cells, nerve cells and muscle cells in animals root hair cells, xylem and phloem cells in plants. **4.1.1.4 Cell differentiation ** Students should be able to explain the importance of cell differentiation. As an organism develops, cells differentiate to form different types of cells. Most types of animal cell differentiate at an early stage. Many types of plant cells retain the ability to differentiate throughout life. In mature animals, cell division is mainly restricted to repair and replacement. As a cell differentiates it acquires different sub-cellular structures to enable it to carry out a certain function. It has become a specialised cell.

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 32 slides covering Diffusion. (contains a optional practical) By the end of the powerpoint students would have covered: Substances may move into and out of cells across the cell membranes via diffusion. Diffusion is the spreading out of the particles of any substance in solution, or particles of a gas, resulting in a net movement from an area of higher concentration to an area of lower concentration. Some of the substances transported in and out of cells by diffusion are oxygen and carbon dioxide in gas exchange, and of the waste product urea from cells into the blood plasma for excretion in the kidney. Students should be able to explain how different factors affect the rate of diffusion. Factors which affect the rate of diffusion are: the difference in concentrations (concentration gradient) the temperature the surface area of the membrane. A single-celled organism has a relatively large surface area to volume ratio. This allows sufficient transport of molecules into and out of the cell to meet the needs of the organism. Students should be able to calculate and compare surface area to volume ratios. Students should be able to explain the need for exchange surfaces and a transport system in multicellular organisms in terms of surface area to volume ratio. Students should be able to explain how the small intestine and lungs in mammals, gills in fish, and the roots and leaves in plants, are adapted for exchanging materials. In multicellular organisms, surfaces and organ systems are specialised for exchanging materials. This is to allow sufficient molecules tobe transported into and out of cells for the organism’s needs. The effectiveness of an exchange surface is increased by: having a large surface area a membrane that is thin, to provide a short diffusion path (in animals) having an efficient blood supply (in animals, for gaseous exchange) being ventilated.

Designed for the new specification AQA GCSE course but can be modified for other exam boards. 16 slides covering Osmosis . By the end of the powerpoint students would have covered: Water may move across cell membranes via osmosis. Osmosis is the diffusion of water from a dilute solution to a concentrated solution through a partially permeable membrane. Students should be able to: use simple compound measures of rate of water uptake use percentages calculate percentage gain and loss of mass of plant tissue. Required practical activity 3: investigate the effect of a range of concentrations of salt or sugar solutions on the mass of plant tissue.

Designed for the new specification International A-level edexcel course but can be modified for other exam boards. 21 slides covering The cell cycle By the end of the powerpoint students would have covered: -The cell cycle’s role in the production of identical daughter cells for growth and asexual reproduction. Powerpoint contains exam questions

Resources are being improved and you will have access to all future improvements upon purchase Save yourself hours of planning by buying this massive buddle, it contains 740 powerpoint slides covering the entire IGCSE Edexcel Biology (9-1) course. Engaging powerpoints with examination questions. These resources are intended to be adapted to the needs of your pupils by adding additional questions and tasks to differentiate to your needs. The buddle contains: 1 The nature and variety of living organisms 2 Structure and functions in living organisms 3 Reproduction and inheritance 4 Ecology and the environment 5 Use of biological resources Includes specification points in a excel sheet which can be used as a online check list where pupils red, amber and green each learning outcome. NEW*Includes a copy of my revision guide Edexcel International GCSE BIOLOGY 9-1: Learn with Mr Science study guide NEW* There is also weekly released science videos that can be used with the powerpoints.

Check out my other resources at www.tes.com/teaching-resources/shop/mr_science Designed for the new specification AQA GCSE course (covers spec point 4.1.1.3) but can be modified for other exam boards. 13 slides covering Plant specialisation. By the end of the powerpoint students would have covered: -Describe how specialised cells in a plant carry out a particular function -Identify different parts of specialised plant cells and relate these identified parts to their function.

Check out my other resources at: www.tes.com/teaching-resources/shop/mr_science Designed for the new specification AQA GCSE course (covers spec point 4.1.1.3) but can be modified for other exam boards. 10 slides covering Animal cell specialisation . By the end of the powerpoint students would have covered: -Explain how cells become specialised through differentiation. -Why are animal cells specialised -Be able to link structure to function of different animal cells.

Check out my other resources at: www.tes.com/teaching-resources/shop/mr_science 7 practice exam questions suitable for the new GCSE AQA specification. Great revision tool or could be used as a end of topic test.

Designed for the new specification AQA GCSE( covers spec point 4.5.4.1) course but can be modified for other exam boards. 26 slides covering Plant hormones and response: -Be able to describe how plants respond to light and gravity. -Be able to investigate the effect of light or gravity on the growth of newly germinated seedlings. -Be able to describe the effects of some plant hormones and the different ways people use them to control plant growth.

A short video lasting 1min and 45sec that can be used as an introduction into how enzymes work. Suitable for GCSE/A-level students in all exam boards.