Author: eduKate Asia
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PSLE Science Reality Lab Vol No.551 | “QPF = 25 mm” — Does That Mean a 25% Chance of Rain or 25 mm Falling Right Now?
A massive Primary 5/6 PSLE Science evidence guide to Quantitative Precipitation Forecasts: how to separate forecast accumulation, probability, rain rate, observation and spatial scale before making a claim.
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PSLE Science Reality Lab Vol No.546 | “Both Centrifuges Ran at 10,000 rpm” — Did the Samples Experience the Same Centrifugal Effect?
A massive Primary 5/6 PSLE Science evidence guide to reading centrifuge reports: why matching rpm does not automatically mean matching relative centrifugal force, and how rotor radius, sample position, spin time and method details change the comparison.
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PSLE Science Reality Lab Vol No.545 | “This Road Line Is 1 mm Wide on the Map” — Is the Real Road Exactly That Wide at Scale?
A massive Primary 5/6 PSLE Science evidence guide to scientific and topographic map symbols: why a drawn road, river or boundary line can be widened or simplified for legibility and should not automatically be measured as the feature’s true physical width.
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PSLE Science Reality Lab Vol No.544 | “Overall AQI = 160” — Is That the Average Pollution Score Across All Pollutants?
A massive Primary 5/6 PSLE Science evidence guide to reading an overall Air Quality Index correctly: why one overall AQI is not automatically the average of every pollutant score, and how to trace the index back to the pollutant, concentration, time window and evidence behind it.
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PSLE Science Reality Lab Vol No.550 | “Accessioned in 1985” — Was the Specimen Collected in 1985?
A massive Primary 5/6 PSLE Science evidence guide to museum and biodiversity specimen dates: why an accession year is not automatically the collection date, and how to use event dates, provenance and date precision correctly.
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PSLE Science Reality Lab Vol No.549 | “Control = 1.0; Treatment = 1.4” — Were Those the Raw Measurements?
A massive Primary 5/6 PSLE Science evidence guide to normalized graphs: why control = 1.0 and treatment = 1.4 may be relative values created from a baseline rather than the original measurements.