I can name some materials and say how they might be used.
I can name one or two characteristics of a range of materials and make comparisons eg wood is usually hard and strong but glass is usually hard and breaks easily.
I can give sensible reasons why some materials are better than others eg it’s useful to see how full the bottle is, the towel needs to soak up water
I can measure length accurately.
I can say what is fair/unfair about a test I carried out
I can make up my own test and say why it is fair