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Year 11 · 2017 syllabus · Module 1 pilot

Planning a safe, valid method — Build worksheet

Original practice. Write explanations that distinguish observations, evidence and claims.

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Name: __________________________ Date: ______________

Question 1

Repair “Use some water” in a safe dissolving method.

Question 2

List a hazard and control for scissors.

Question 3

State a specific repeat instruction.

Teacher answer key — 3 questions

Model responses identify the essential ideas. Accept scientifically correct alternatives that address the question; wording need not match exactly.

  1. Specify an approved volume, for example 50 mL, measured by a stated container/tool, and keep it consistent across conditions.
  2. Sharp blades can cut; use school-approved scissors, safe handling/cutting procedure and keep fingers clear.
  3. Five trials at each wing length, with raw readings recorded and trial order specified. Accept another justified number.