Metric Measurement, Units & Uncertainty — Drills · Grade 6 Science
Chapter: Inquiry, Measurement & ModelsWhat these drills covers
By the end of Metric Measurement, Units & Uncertainty you should be able to:
- I can convert between metric units using the prefixes milli, centi and kilo.
- I can read an instrument to its smallest division plus one estimated digit.
- I can explain why two measurements that differ may not be measuring different things.
4 questions, multiple choice and written answer, each with a worked explanation.
Vocabulary used: unit, resolution, evidence, system boundary, uncertainty.
Problem 1
- Writing more digits automatically improves measurement quality.
- A measurement without a unit is fully interpretable.
- unit: A defined reference used to express a measurement.
- A sample with missing measurements has proved those values are zero.
Answer and explanation
unit: A defined reference used to express a measurement.
A defined reference used to express a measurement.
Problem 2
- Repeating any method makes every causal claim true.
- Writing more digits automatically improves measurement quality.
- A measurement without a unit is fully interpretable.
- resolution: The smallest change a measuring instrument can distinguish under its method.
Answer and explanation
resolution: The smallest change a measuring instrument can distinguish under its method.
The smallest change a measuring instrument can distinguish under its method.
Problem 3
Answer and explanation
250 ÷ 1,000 = 0.25 L; the amount of liquid is unchanged.
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
No. A mean summarizes readings, but instrument resolution and method uncertainty still limit what the digits mean.
Compare the scientific meaning and reasoning after an independent attempt. A different accurate supported response can be correct; human review is required.