Category: PSLE Primary Science
-
PSLE Science Reality Lab Vol No.091 | “We Used the Same Test Surface for Both” — Did the First Trial Change the Starting Conditions for the Second?
A Primary 5/6 PSLE Science Reality Lab guide to sequential product tests: learn why reusing the same surface or specimen can create carryover and make the second trial start from a different condition.
-
PSLE Science Reality Lab Vol No.090 | “The Graph Flatlines at 100” — Did the Process Stop, or Did the Sensor Run Out of Range?
A Primary 5/6 PSLE Science Reality Lab guide to flatline graphs: learn to distinguish a real physical plateau from a sensor, display or software ceiling before deciding that the process stopped changing.
-
PSLE Science Reality Lab Vol No.089 | “Highest Ever” — Ever Since When?
A Primary 5/6 PSLE Science Reality Lab guide to “highest ever” and record-breaking claims. Learn to find the start and coverage of the measurement record, check gaps and method changes, and keep “highest in this dataset” separate from “highest in all history”.
-
PSLE Science Reality Lab Vol No.088 | “30% Less Material” — Less Per Pack, or Less for the Same Number of Uses?
A Primary 5/6 PSLE Science Reality Lab guide to “less material” and packaging claims. Learn to compare material use for the same function, identify the true baseline and keep a narrow material result from becoming an unsupported total environmental claim.
-
PSLE Science Reality Lab Vol No.087 | “Absorbs Twice as Much” — Were the Same Amounts of Material Tested?
A Primary 5/6 PSLE Science Reality Lab guide to absorbency claims. Learn why a bigger total can come from testing more material, how to choose a fair comparison basis and how to keep whole-product capacity separate from material performance.
-
PSLE Science Reality Lab Vol No.086 | “The Solid Line Becomes Dashed” — Where Did the Measurements End and the Projection Begin?
A Primary 5/6 PSLE Science Reality Lab guide to charts that join observations to projections. Learn to locate the evidence boundary, distinguish measured data from modelled extension, check assumptions and state conclusions at the right scope.
