Scientific inquiry and fair testing take centre stage in this Grade 7 science worksheet, where students practise turning questions about the natural world into testable investigations. Using plant growth as a practical example, learners distinguish predictions from questions, identify variables, choose suitable measuring tools, and plan investigations that produce useful evidence.

The reading passage introduces a question about whether light affects plant growth. Students explore how to change hours of light as the independent variable, measure plant height as the dependent variable, and keep conditions such as plant type, soil, and water consistent. This concrete example helps clarify what makes a test fair and why changing several factors at once makes results harder to interpret.

From a question to a workable investigation

Scientific investigations require more than a prediction. Students consider how to write a focused question, make an evidence-based prediction with a reason, select an appropriate tool such as a ruler, and record measurements clearly. They also examine why repeated trials can improve confidence in results and how identifying hazards before starting supports safe practical work.

The resource extends scientific responsibility beyond equipment and procedures. Students consider how investigations involving living things should be planned thoughtfully and how information from local First Peoples sources should be used respectfully. The passage emphasises using local sources, following guidance about permissions, crediting knowledge holders, and avoiding assumptions that all communities share the same perspective.

Skills practised in the worksheet

Multiple-choice questions and true-or-false statements reinforce focused investigation questions, testable predictions, independent and dependent variables, control variables, measuring tools, repeated trials, and safe decisions. Short-answer prompts ask students to write a question and prediction about water and seed germination, identify variables in a plant-growth investigation, and describe steps for making an investigation safe and respectful toward living things. A labelled diagram, categorisation activity, and short-note task provide additional opportunities to organise and communicate ideas.

Together, these tasks develop practical scientific reasoning: students must decide what to change, what to measure, what to keep constant, and how to make evidence more dependable without overlooking safety or responsible information use.

What is included

• Grade 7 science worksheet with a reading passage and investigation-focused activities.
• Separate PDF answer key for checking student responses.
• Teacher Guide inside the answer key PDF, including Learning Objectives, Teaching Tips, Discussion Questions, and Common Mistakes.
• Student Notes lines at the bottom of the worksheet.

Ways to use this resource

Use this fair testing worksheet when introducing experimental design, as guided practice before a classroom investigation, or for independent review of scientific variables and evidence. The plant-growth and seed-germination scenarios give students specific situations to reason through, rather than asking them to memorise variable definitions in isolation.

The framework supplied is BC. No specific official curriculum code is provided, so this listing does not claim alignment to a particular coded outcome. The answer key and teacher guidance offer practical support for reviewing responses and discussing common misunderstandings about fair tests, safety, and responsible use of knowledge.