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This resource is a set of revision notes on the CCEA GCSE topic of breathing and respiration . It includes subtopics such as respiratory surfaces; diffusion gradient; active transport/ uptake; aerobic respiration; anaerobic respiration; compensation point; the effects of exercise on depth and rate of breathing; respiration by yeast and creating anaerobic conditions. It is an excellent resource for both students and teachers. It can be used by students in their own private revision. I developed this resource when revising for my own GCSE exams, in which i received grade AA in Double award science. It can also be used by teachers in the classroom as notes when they go through these topics together with their class.

This resource is a set of revision notes on the CCEA GCSE topic of Ecology . It includes subtopics such as competition and adaptation; biotic and abiotic factors; energy in ecosystems; decomposition and cycling of nutrients; carbon cycle; nitrogen cycle; implications for farming; active transport; leaf litter studies; pitfall traps and habitat study. It is an excellent resource for both students and teachers. It can be used by students in their own private revision. I developed this resource when revising for my own GCSE exams, in which i received grade A star A star in double award science. It can also be used by teachers in the classroom as notes when they go through these topics together with their class.

This resource is a set of revision notes on the CCEA GCSE topic of reproduction and fertility. It includes subtopics such as male and female reproductive systems, sex hormones, the menstrual cycle, fertilisation and pregnancy, health, diet, smoking, alcohol and drugs during pregnancy, fertility problems, contraceptive methods and sexually transmitted infections. It is an excellent resource for both students and teachers. It can be used by students in their own private revision. I developed this resource when revising for my own GCSE exams, in which I received grade A star A star in double award science. It can also be used by teachers in the classroom as notes when they go through these topics together with their class.

This resource is a set of revision notes on the CCEA GCSE topic of Vrtiation and Natural Selection. It includes subtopics such as genetic and environmental variation, natural selection, artificial selection and evidence for evolution. It is an excellent resource for both students and teachers. It can be used by students in their own private revision. I developed this resource when revising for my own GCSE exams, in which I received grade A star A star in double award science. It can also be used by teachers in the classroom as notes when they go through these topics together with their class.