Category: Science
-
PSLE Science Reality Lab Vol No.174 | “Precipitable Water = 40 mm” — Does That Mean 40 mm of Rain Will Fall?
A massive Primary 5/6 PSLE Science Reality Lab guide to precipitable water: learn why 40 mm describes moisture in an atmospheric column, not a promise that 40 mm of rain will fall.
-
PSLE Science Reality Lab Vol No.173 | “PM2.5 = 35 µg/m³” — Are All the Particles 2.5 µm Wide?
A Primary 5/6 PSLE Science Reality Lab guide to PM2.5 displays: learn why PM2.5 names a fine-particle size class while µg/m³ reports mass concentration, not particle size or particle count.
-
PSLE Science Reality Lab Vol No.173 | “Cloud Cover = 80%” — Does That Mean There Is an 80% Chance of Rain?
A Primary 5/6 PSLE Science Reality Lab guide to weather percentages: learn why 80% cloud cover describes sky coverage, not an 80% probability of rain.
-
PSLE Science Reality Lab Vol No.172 | “Global Sea Level Rose 3 mm” — Did Every Coast Rise by 3 mm?
A Primary 5/6 PSLE Science Reality Lab guide to sea-level claims: learn why a global mean change is not the same numerical change at every coast, and how local land and ocean conditions affect the evidence.
-
PSLE Science Reality Lab Vol No.172 | “95th Percentile = 42” — Were 95% of the Readings Exactly 42?
A Primary 5/6 PSLE Science Reality Lab guide to percentile values in scientific monitoring reports: learn why a 95th percentile of 42 is a ranked threshold, not a claim that 95% of readings equal 42.
-
PSLE Science Reality Lab Vol No.171 | “Turbidity = 20 NTU” — Does That Mean There Are 20 Particles in the Water?
A Primary 5/6 PSLE Science Reality Lab guide to turbidity: learn why 20 NTU is an optical light-scattering result, not 20 particles, and how to keep water-quality claims inside the evidence.
