Unit 7A. Cells
Unit 7B. Reproduction
Unit 7C. Environment and feeding relationships
Unit 7D. Variation and classification
Unit 7E. Acids and alkalis
Unit 7F. Simple chemical reactions
Unit 7G. Particle model of solids, liquids and gases
Unit 7H. Solutions
Unit 7I. Energy resources
Unit 7J. Electrical circuits
Unit 7K. Forces and their effects
Unit 7L. The solar system and beyond
Unit 8A. Food and digestion
Unit 8B. Respiration
Unit 8C. Microbes and disease
Unit 8D. Ecological relationships
Unit 8E. Atoms and elements
Unit 8F. Compounds and mixtures
Unit 8G. Rocks and weathering
Unit 8H. The rock cycle
Unit 8I. Heating and cooling
Unit 8J. Magnets and electromagnets
Unit 8K. Light
Unit 8L. Sound and hearing
This is a list of all the topics that current Y8 will have covered by the end of this academic year. It is very varied, and undoubtably they will have more interest in some individual topics and find others a bit tricky or dull. The teacher's specialism can make a difference to the teaching as well.
Most schools will use end-of-topic tests that come with their text books. Levelling will be tied into what they get in this test, eg 16/20 = Level 7, 13/20 = Level 6 etc. It is very, very crude.
These topics, as listed by QCA, are not harder as you go down the list. They are all completely stand alone, so it is difficult to see progression from one topic to the next.
If a pupil was Level 7 across several topics, and then suddenly fell to Level 4 across several (with good effort), then that is a cause for concern. If there was an isolated Level 7 last year, and an isolated Level 4 this year, then there is less you can read into it.
Magenta, they basically cover 2 topics every half-term, so giving them a half-termly test isn't a lot different from testing each topic individually.
Roisin, this year's Y7 have a new specification, so what I have said about Y8 may not be accurate. I don't teach Y7 this year, so haven't got my mind wrapped around what they do (and I'm a bad mummy, having a DD in Y7!). Level 8 is very high (our scheme doesn't hit L8 until Y9), whatever way you slice it! You are right, that he would need to repeat this performance in most of his topics to be Level 8.