Author: eduKate Asia
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PSLE Science Reality Lab Vol No.481 | “Earthquake Beachball” — Is the Black-and-White Circle a Map of the Fault on the Ground?
A massive Primary 5/6 PSLE Science Reality Lab guide to earthquake focal-mechanism beachballs: learn why the black-and-white circle is a scientific projection, not a ground map or fault footprint, and why two nodal planes require independent evidence.
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PSLE Science Reality Lab Vol No.480 | “This Area Is Jurassic” — Did Every Rock Here Form at the Same Exact Time?
A massive Primary 5/6 PSLE Science Reality Lab guide to geologic maps: learn why a unit labelled Jurassic does not mean every rock formed at one exact time, and how age ranges, legends, contacts, sampling and map scale control the claim.
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PSLE Science Reality Lab Vol No.479 | “Preserved Specimen Record: 1924” — Does That Mean the Species Still Lives There Today?
A massive Primary 5/6 PSLE Science Reality Lab guide to preserved-specimen biodiversity records: learn why an old specimen can prove historical occurrence without proving a species still lives there today, and how eventDate, basisOfRecord and current evidence control the claim.
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PSLE Science Reality Lab Vol No.478 | “Earthquake Depth = 10 km” — Was It Really Measured Exactly 10 km Deep?
A massive Primary 5/6 PSLE Science Reality Lab guide to earthquake depth reports: learn why 10 km can be a fixed solution depth rather than an exact measurement, and how metadata, uncertainty and review status control the claim.
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PSLE Science Reality Lab Vol No.477 | “DYFI Intensity VI for This ZIP Code” — Did Every Place There Experience Intensity VI?
A massive Primary 5/6 PSLE Science Reality Lab guide to USGS Did You Feel It? maps: learn why a ZIP-code community intensity is a summary of felt reports, not identical shaking or damage at every location.
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PSLE Science Reality Lab Vol No.476 | “Coordinate Uncertainty = 1000 m” — Was the Real Location Exactly 1000 m From the Map Point?
A massive Primary 5/6 PSLE Science Reality Lab guide to biodiversity coordinate uncertainty: learn why a 1000 m value is an uncertainty radius around a map point, not an exact error distance or proof of the organism’s precise location.
