Check out my other resources at: www.tes.com/teaching-resources/shop/mr_science Designed for the new specification AQA GCSE( covers spec point 4.1.1.1 ) course but can be modified for other exam boards. 11 slides covering Chemical equations. By the end of the powerpoint students would have covered: State that mass is conserved in a chemical reaction. Explain why mass is conserved in a chemical reaction. Write balanced symbol equations.

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.

Check out my other resources at: www.tes.com/teaching-resources/shop/mr_science 22 questions for students to practice balancing equations.

Put all your students names into the different slides, click slide show and the powerpoint will go through all the names and you can randomly stop the slide show to pick a student to ask a question. Press the left arrow to stop and right arrow to start again.

Check out my other resources - www.tes.com/teaching-resources/shop/mr_science Used the above lesson in a job interview hopefully you find it useful. Please remember to comment if it helps you get a job :)

Put all your students names into the sneakers bar, click slide show and the powerpoint will go through all the names and you can randomly stop the slide show to pick a student to ask a question.

Check out my other resources at: www.tes.com/teaching-resources/shop/mr_science Designed for the new specification AQA GCSE( covers spec point 4.10.1.2 ) course but can be modified for other exam boards. 14 slides covering Potable water: -the difference between potable water and pure water -the differences in treatment of ground water and salty water   -how to carry out a simple distillation of salt solution and test the distillate to determine its purity. -includes details of the required practical (see worksheets www.tes.com/teaching-resource/required-practical-water-purification-11771279)

Matches the AQA A-level biology specification on kerboodle. Intended to track assessment marks at A-level You can manipulate the grade boundary to your schools needs simple fill in the % marks column and the spread sheet will generate the grade.

Check out the lesson that goes with these questions: https://www.tes.com/teaching-resource/culturing-microorganisms-11910368

Check out the lesson that goes with these questions: https://www.tes.com/teaching-resource/culturing-microorganisms-11910368

Check out the lesson that goes with these questions: https://www.tes.com/teaching-resource/microscopes-11485231

www.mrscience.co.uk 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.

Get a discount on this resource when you buy directly from www.mrscience.co.uk 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.

Lesson for lower ability class. Main worksheet can be found: https://www.tes.com/teaching-resource/leblanc-process-storyboard-ocr-c3-6329723

A great simple resource to teach lipids, powerpoint contains exam questions and when I taught this lesson I used slides 6 and 12 for group activities. www.tes.com/teaching-resources/shop/mr_science

Check out my other resources at: www.tes.com/teaching-resources/shop/mr_science Designed for the new specification AQA GCSE( covers spec point 4.7.2 ) course but can be modified for other exam boards. 27 slides covering Levels of organisation. By the end of the powerpoint students would have covered: 4.7.2.1 Levels of organisation

Matches the AQA A-level biology specification on kerboodle. Intended to track assessment marks at A-level You can manipulate the grade boundary to your schools needs simple fill in the % marks column and the spread sheet will generate the grade.

Designed to use as a revision tool to help students summarise content from Cell biology. Alternatively can be given as a homework task. Contains 2 revision mats Print off in A3. www.tes.com/teaching-resources/shop/mr_science

In this investigation you will test three water samples from different sources for pH and the presence of dissolved solids. After distillation of the sea water, you will test the water again to check that dissolved solids have been removed, making the water fit to drink. lesson found here: www.tes.com/teaching-resource/potable-water-11771314

For more teaching resources check out: www.tes.com/teaching-resources/shop/mr_science Please leave a review Lesson covering: Factors that lead to CVD Treatments for CVD Evaluate different treatments for cardiovascular disease