Category: Science
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PSLE Science Reality Lab Vol No.284 | “Coral Bleaching Alert Level 2” — Does That Mean All the Coral Is Dead?
A massive PSLE Science Reality Lab guide for Primary 5/6 learners on reading NOAA-style coral bleaching alerts as satellite heat-stress risk indicators rather than direct proof that every coral in a region is bleached or dead.
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PSLE Science Reality Lab Vol No.283 | “1,000 Microplastic Particles per Litre” — Does That Mean 1,000 mg/L of Plastic?
A massive PSLE Science Reality Lab guide for Primary 5/6 learners on reading microplastic particle-count concentrations without confusing particles per litre with mass concentration or a complete count of all plastics present.
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PSLE Science Reality Lab Vol No.282 | “60% of the eDNA Reads Came From Species A” — Were 60% of the Animals Species A?
A massive PSLE Science Reality Lab guide for Primary 5/6 learners on evaluating eDNA metabarcoding charts without turning sequencing-read percentages directly into percentages of animals, individuals or biomass.
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PSLE Science Reality Lab Vol No.281 | “Rated EV Range = 300 km” — Will the Car Always Travel 300 km on One Charge?
A massive PSLE Science Reality Lab guide for Primary 5/6 learners on evaluating EV range ratings as standardised test-based estimates rather than guaranteed distances for every real trip.
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PSLE Science Reality Lab Vol No.280 | “STC 50” — Does the Wall Make Every Sound 50 dB Quieter?
A massive PSLE Science Reality Lab guide for Primary 5/6 learners on reading an STC sound-transmission rating without treating it as an exact 50 dB reduction for every frequency, room or installation.
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PSLE Science Reality Lab Vol No.279 | “SEER2 = 20” — Is the Air Conditioner 20% Efficient?
A massive PSLE Science Reality Lab guide for Primary 5/6 learners on reading SEER2 air-conditioner ratings without mistaking a seasonal Btu/Wh efficiency ratio for a percentage, cooling capacity or guaranteed household electricity use.
