Space Models: Scale, Evidence & Revision — Drills · Grade 6 Science
Chapter: Earth, Moon, Sun & Space ModelsWhat these drills covers
By the end of Space Models: Scale, Evidence & Revision you should be able to:
- I can build a scale model of distances in space and state what it distorts.
- I can explain why textbook diagrams of the solar system cannot be to scale.
- I can explain how a model gets revised when better evidence arrives.
4 questions, multiple choice and written answer, each with a worked explanation.
Vocabulary used: scale, revision, evidence, system boundary, uncertainty.
Problem 1
- A sample with missing measurements has proved those values are zero.
- A diagram that looks realistic must have correct numerical scale.
- A model with one limitation is useless for every purpose.
- scale: A stated ratio connecting represented and actual quantities with units.
Answer and explanation
scale: A stated ratio connecting represented and actual quantities with units.
A stated ratio connecting represented and actual quantities with units.
Problem 2
- revision: A reasoned change to a model or explanation in response to evidence or an identified limit.
- A model with one limitation is useless for every purpose.
- A diagram that looks realistic must have correct numerical scale.
- Repeating any method makes every causal claim true.
Answer and explanation
revision: A reasoned change to a model or explanation in response to evidence or an identified limit.
A reasoned change to a model or explanation in response to evidence or an identified limit.
Problem 3
Answer and explanation
To keep the object visible. The symbol can show its location, but its labeled size limit must accompany the diagram.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.
Problem 4
Answer and explanation
Its flat-alignment assumption, with the appropriate tilted geometry; the entire concept of reflected sunlight need not be discarded.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.