BIG IDEA
Understand the idea before memorising a rule.
Laboratory skills and safety is part of scientific investigation. At Grade 7, the goal is to connect this topic to a clear method, relevant evidence and a final check. You will apply that idea to a real scientific investigation question at this grade level.
YOU WILL LEARN TO
- Explain the key ideas in laboratory skills and safety using accurate science vocabulary.
- Apply a reliable method to a new laboratory skills and safety task.
- Check the result and explain why the evidence supports it.
METHOD
A reliable three-step approach
- 1
State the scientific idea using accurate vocabulary.
- 2
Connect cause and effect with an observation or model.
- 3
Check the explanation against evidence, units and safety rules.
WORKED EXAMPLE
During independent practice for Grade 7, why are repeat measurements useful?
Model response
The correct answer is They improve reliability. Repeats reveal variation and allow a representative mean to be calculated.
KNOWLEDGE CHECK