Science Homework #2: Year 8

Science Homework:  Year 8  (Mrs Downing) What type of reproduction needs males and females?Name three male reproductive organs and describe their role.Name three female reproductive organs and describe their role.Explain how a sperm cell is adapted for swimming.Where does fertilisation occur?What is the function of the a) placenta b) the umbilical cord and c) amniotic fluid?About Read More …

Science Homework #13: Year 11

Science Homework #13:  Year 11 Give two non-living indicators to measure environmental change.What do automatic control systems use to detect changes in the environment?Why are embryionic stem cells more useful to use than adult stem cells?If 2 alleles of a gene are identical they are known as ……..?…….. Alleles.White cells can destroy micro organisms in two Read More …

Science Homework #12: Year 11

Science Homework #12:  Year 11If nanoparticles have such wonderful properties then why are they not used more?The electrolysis of brine (salt water) gives three useful chemicals…Name them.In a chemical equation… the number of atoms in the reactants equals that in the products- this is known as the Law of Conservation of …?How do white blood Read More …

Science Homework #1: Year 9

Science Homework:  Year 9  (Mrs Downing)How can we test for carbon dioxide gas?What is the word equation for anaerobic respiration in humans?Write a word equation for the reaction of sodium with water.What is the difference between sexual and asexual reproduction?Describe the process of photosynthesis. Use a word equation to help.Microorganisms are an important part of Read More …