The Achievement Standard in the Australian Curriculum describes expectations of work at ‘C grade’. Many teachers are still developing their understanding of what to look for in student work that is ‘higher than C’, and of how they might ensure there is opportunity within the task for students to show work that is above standard. In addition, the A–E grading rubrics can vary from state to state and even between sectors (Government/Independent/Catholic) within a state, so it is worth looking at the assessment and reporting guidelines for your context. With that in mind, the examples freely available on the Queensland Assessment and Curriculum Authority might be a useful starting point. The assessment is for a 'rolling car' task, but I think the criteria for A–E grades could be relatively easily transferred into a rubric for the activities in the ASSIST ‘Investigating contact and-non contact forces’ resource that you are proposing to do with your students.
Go to: https://www.qcaa.qld.edu.au/p-10/aciq/sample-assessments/p-10-science/ye... download 'The Force of friction' PDF.
ac_sa_sci_yr4_force_of_friction.zip - ZIP archive, unpacked size 2,939,929 bytes. (The force of friction Continua)
Also, sample assessment, teacher guidelines and the rolling car assessment task: