Use of amount of substance in relation to volumes of gases (Molar Gas Volume) GCSE Chemistry HigherQuick View
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Use of amount of substance in relation to volumes of gases (Molar Gas Volume) GCSE Chemistry Higher

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This resources is a complete lesson on Molar Gas Volume AQA GCSE Chemistry Higher Tier. It includes a Powerpoint presentation, worksheet and exit ticket questions. Equal amounts in moles of gases occupy the same volume under the same conditions of temperature and pressure. The volume of one mole of any gas at room temperature and pressure (20o C and 1 atmosphere pressure) is 24 dm3 . The volumes of gaseous reactants and products can be calculated from the balanced equation for the reaction. Students should be able to: calculate the volume of a gas at room temperature and pressure from its mass and relative formula mass calculate volumes of gaseous reactants and products from a balanced equation and a given volume of a gaseous reactant or product change the subject of a mathematical equation.
GCSE Mitosis and The Cell Cycle LessonQuick View
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GCSE Mitosis and The Cell Cycle Lesson

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A complete resourse with an emphasis on CFU and inclusion. The resource covers the main specification points for the AQA Combined Triology Science GCSE and Biology GCSE the Cell Cycle and Mitosis. Included is a powerpoint, worksheets (standard and lower ability) and PPQ show in powerpoint. Cells divide in a series of stages called the cell cycle. Students should be able to describe the stages of the cell cycle, including mitosis. During the cell cycle the genetic material is doubled and then divided into two identical cells. Before a cell can divide it needs to grow and increase the number of sub-cellular structures such as ribosomes and mitochondria. The DNA replicates to form two copies of each chromosome. In mitosis one set of chromosomes is pulled to each end of the cell and the nucleus divides. Finally the cytoplasm and cell membranes divide to form two identical cells. Students need to understand the three overall stages of the cell cycle but do not need to know the different phases of the mitosis stage. Cell division by mitosis is important in the growth and development of multicellular organisms. Students should be able to recognise and describe situations in given contexts where mitosis is occurring.