C21 C2: Materials Natural or Synthetic Bell Task

Bell task or starter I use when teaching the 21st Century Science module C2 - Materials/Properties. Simply ask students to group into natural and synthetic, see if they can recall the difference from previous lesson. Ones that catch them out are rubber, silk and terracotta. Can be extended by asking more able students to add where each material comes from. In time I will make it interactive as a drag and drop. Let me know how it goes, any suggestions welcome.