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Form 2 exam revision topics before Exams June 2008 Science Food chains Write an example of a food chain Write a food chain using only these words: Predator, herbivore, carnivore, producer, decomposer How are root hair cells and sperm cells adapted for their function? Draw a label a typical plant and a typical animal cell. Flowers. Make sure that you can label a flower diagram D:\148082436.docLast printed 24/06/2017 08:50:00 Puberty List the main changes that occur in boys and girls Boys: Changes you can see Changes that take place inside Girls Changes you can see Changes that take place inside Why are fungi classified separately from plants, even though they look a bit like a plant? Check that you can write down the word equation for photosynthesis. D:\148082436.docLast printed 24/06/2017 08:50:00 Check that you can write down the word equation for respiration. Water and carbon dioxide are the products of respiration. Describe how you would test for both of these products. Having tested for the presence of water, how would you test for the purity of the water? Check that you can describe with an annotated diagram how the energy in food is produced only when the sun is shining. How can you use pondweed in an experiment to show that oxygen is produced during photosynthesis? Food types: check that you can list the different types of food, explain the purpose of each and given an example of a food which contains this nutrient. Nutrient D:\148082436.docLast printed 24/06/2017 08:50:00 Needed for Food containing this nutrient. Name the test where appropriate Classification. Write down the characteristics of the arthropods. Spiders Arthropods: Myriapods Crustaceans Insects Electricity and electrical circuits Make sure of all the electrical symbols Safety : list things needed for safe practical work, especially chemistry The Earth in space What are the definitions of these: A planet A star A galaxy (b) fill in the following blanks, choosing your words from this selection: carbohydrate glucose Benedict’s solution iodine starch energy protein growth vitamin scurvy citrus orange minerals calcium nitrates rabbit Benjamin’s solution producer photosynthesis At the start of every food chain is a plant. This is because a food chain has to start with a …………… By the process of ……………………. plants produce …………… in their leaves, which we can test by using …………….. which goes purple. The starch soon turns to ……………. which is a sugar and we can test for this using …………………….. solution which turns from blue to ………………colour. Starch and sugar are examples of the type of food called ……………………… We also need foods which are rich in ……………. for growth and repair. Humans need fruits like lemons to provide us with ……………….C; lack of this gives you ……………… D:\148082436.docLast printed 24/06/2017 08:50:00 Humans need to grow healthy teeth and bones. For this we need m………… of which c……….. is an example. Peanut burning: what and why did you need to measure before the start of the experiment? Cross section of a leaf: check you can label the diagram in really good detail Describe using an annotated diagram how you would use iron filings to set up an expt to show how much O2 there is in air D:\148082436.docLast printed 24/06/2017 08:50:00 Name a weak and a strong acid and give their approx pH values weak Name a weak and a strong alkali and give their approx pH values weak strong strong What colour do the following go in full range indicator? Water Ammonia Citric acid Vinegar Sodium hydroxide Make sure to revise the electrical symbols. You can get them off the science page of the website. D:\148082436.docLast printed 24/06/2017 08:50:00