3
4
 5Keywords: 
peer assessment
physical properties
plastics
pollution
properties
rubbish
table interpretation
Answer questions about rubbish picked up on a beach, and suggest reasons why plastic is the most common rubbish.
 5
 0
 2
 2
 1
 1
 6
 2
 2
 0
 6
 3
 5
 2
 1
