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Year 11 · 2017 syllabus · Module 1 pilot

Variables and testable hypotheses — Build worksheet

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

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Name: __________________________ Date: ______________

Question 1

Identify variables in an investigation changing ramp angle and measuring toy-car travel time over 0.8 m.

Question 2

Convert “Do bigger spinners fall better?” to a measurable question.

Question 3

Name three controls for comparing paper towel absorption.

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. IV ramp angle; DV travel time over 0.8 m; suitable controls include car, release method, surface and travel distance.
  2. How does defined wing length affect mean descent time over a fixed release height? Avoid undefined “bigger” and “better”.
  3. Area/number of layers, liquid type/volume or immersion time, drainage time and measurement method, as applicable to the chosen method.