Author: eduKate Asia
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PSLE Science Reality Lab Vol No.452 | “11 Spectral Bands” — Is That Sensor Automatically Better Than One With 4?
A Primary 5/6 Reality Lab guide to evaluating spectral-band claims: why 11 bands are not a universal sensor quality score, and how to compare wavelength placement, band width, spatial detail, calibration, timing and scientific purpose.
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PSLE Science Reality Lab Vol No.451 | “Swath Width = 185 km” — Does One Satellite Pixel Cover 185 km?
A Primary 5/6 Reality Lab guide to reading satellite swath width correctly: why 185 km describes observation coverage, not one pixel, and how to separate coverage from spatial resolution, scene size, revisit timing and scientific usefulness.
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PSLE Science Reality Lab Vol No.450 | “LOD90 = 2 ng” — Is Everything Above 2 ng Always Detected?
PSLE-SCI-REALITY-0450. A Primary 5/6 Reality Lab guide to LOD90 and probability-of-detection claims: a reported threshold is not a magic boundary where every amount above is always detected and every amount below is never detected.
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PSLE Science Reality Lab Vol No.449 | “Checksum Matches” — Does That Prove the Scientific Data Are Correct?
PSLE-SCI-REALITY-0449. A Primary 5/6 Reality Lab guide to checksum claims: a matching checksum supports digital file integrity, not the accuracy, validity or interpretation of the scientific measurements inside.
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PSLE Science Reality Lab Vol No.448 | “The Green Band Gets Thinner” — Did That Scientific Quantity Decrease?
A student-facing PSLE Science Reality Lab guide to stacked area charts: how to recover a middle component from its upper and lower boundaries and avoid mistaking a moving cumulative edge for the component’s own trend.
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PSLE Science Reality Lab Vol No.447 | “This Bubble Looks Twice as Wide” — Does It Represent Twice the Value?
A student-facing PSLE Science Reality Lab guide to bubble charts and bubble maps: why a circle that looks twice as wide may represent four times the value, and how to recover the scientific evidence behind symbol size.
