In year 2 we cover the following areas of science. We do not teach them as a block. We return to each block every 6 to 8 weeks. The best thing to do with these ideas is select one homework ideas, for example, from changing materials and then move on to another area. If you keep revisiting areas then it will help the knowledge go into your long term memory. Remember your brain is like a muscle - it gets stronger as you learn new things.