Category: Science
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PSLE Science Reality Lab Vol No.400 | “Battery Nominal Voltage = 3.6 V” — Is the Cell Always at 3.6 V?
A massive Primary 5/6 evidence guide to nominal battery voltage: why a 3.6 V label is a representative specification rather than an exact voltage fixed at every instant.
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PSLE Science Reality Lab Vol No.399 | “2× Vertical Exaggeration” — Are the Slopes Really Twice as Steep?
A massive Primary 5/6 evidence guide to vertical exaggeration: why stretched terrain relief can make slopes look steeper without changing the real elevations, distances or physical landscape.
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PSLE Science Reality Lab Vol No.398 | “Pan-Sharpened to 15 m” — Were All the Colour Bands Measured at 15 m?
A massive Primary 5/6 evidence guide to pan-sharpening: how finer panchromatic spatial detail can be fused with coarser multispectral colour information without making every colour band a native 15 m measurement.
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PSLE Science Reality Lab Vol No.397 | “The Trip Blank Contained Benzene” — Does That Prove the River Sample Contained Benzene?
A massive Primary 5/6 evidence guide to trip blanks: why a positive travelling control signals possible contamination without acting as a second environmental sample.
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PSLE Science Reality Lab Vol No.396 | “Both Thermal Images Show the Roof in Red” — Is It the Same Temperature in Both?
A massive Primary 5/6 evidence guide to thermal-image colour scales: why the same red colour can represent different temperatures when palettes, level or span differ.
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PSLE Science Reality Lab Vol No.395 | “30 m Satellite Data Resampled to 10 m” — Did It Gain New 10 m Detail?
A massive Primary 5/6 evidence guide to resampling: why putting 30 m satellite data on a 10 m grid creates smaller output cells without automatically creating new 10 m measured detail.
