Visit: The Science Musuem - https://www.sciencemuseum.org.uk/see-and-do/challenge-materials
Go Online: https://www.bbc.co.uk/bitesize/topics/zrssgk7
Read:
Materials (Amazing Science) by Sally Hewitt
Everyday Materials (Ways into Science) by Peter Riley
Do: Sort out your household recycling into different groups - group by material or property.