Category: PSLE Primary Science
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PSLE Science Reality Lab Vol No.570 | “Flame Pictogram” — Does That Mean the Chemical Will Catch Fire Immediately?
A massive student-facing PSLE Science evidence guide to reading the GHS flame pictogram as a hazard classification symbol rather than a prediction of immediate ignition.
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PSLE Science Reality Lab Vol No.569 | “Peak Area = 92%” — Is the Sample Automatically 92% Pure?
A massive student-facing PSLE Science evidence guide to deciding when a chromatogram peak-area percentage can—and cannot—support a purity claim.
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PSLE Science Reality Lab Vol No.568 | “Magnetic Declination = 12° East” — Is the Compass 12% Wrong?
A massive student-facing PSLE Science evidence guide to reading magnetic declination as an angle between magnetic and true north, not a percentage error.
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PSLE Science Reality Lab Vol No.567 | “This Area Is Blue on the Geologic Map” — Is the Rock Really Blue?
A massive student-facing PSLE Science evidence guide to reading geologic-map colours as symbols for mapped units rather than literal rock colour.
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PSLE Science Reality Lab Vol No.566 | “Satellite Map Shows an Algal Bloom” — Does That Prove Toxin Is Present at Every Coloured Pixel?
A student-facing PSLE Science evidence guide to reading satellite algal-bloom maps without confusing bloom or biomass proxies with direct toxin measurements.
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PSLE Science Reality Lab Vol No.565 | “Satellite Shows Smoke Overhead” — Does That Prove Ground-Level PM2.5 Is High There?
A student-facing PSLE Science evidence guide to separating smoke seen by satellite in the atmospheric column from the PM2.5 concentration measured near the ground.
