The Primary Science Teaching Trust TAPs project provides some assessment activities with descriptors for working towards, expected and greater depth outcomes which you can find here 

  • 2017-2018 Teacher assessment at the end of KS1 Here 
  • 2017-2018 Teacher assessment at the end of KS2 Here.
  • Exemplification (2016) KS1 Here
  • Exemplification (2016) KS2 Here

NfER Review of Assessment for Learning in Primary Science.

ASE's PLAN Matrices
These give very useful exemplification of what secure attainment looks like for different National Curriculum science topics.

Assessment for Learning Activities
A comprehensive powerpoint that gives simple descriptions of many assessment techniques. By Mike Gershon