Author: eduKate Asia
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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.
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PSLE Science Reality Lab Vol No.548 | “Pipette Set to 100 µL” — Did It Deliver Exactly 100.000 µL?
A massive Primary 5/6 PSLE Science evidence guide to pipette settings: why selecting 100 µL is not proof that exactly 100.000 µL was delivered, and how method, calibration, liquid and technique affect the claim.
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PSLE Science Reality Lab Vol No.547 | “Tare = 0.000 kg” — Does That Mean the Empty Container Has No Mass?
A massive Primary 5/6 PSLE Science evidence guide to tare: why a balance can show 0.000 kg while a container still has mass, and how to separate gross, tare and net readings before making a claim.