Category: Science

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A Primary 5/6 Reality Lab guide to evaluating experiment videos. Learn to distinguish what the camera actually shows from what may have happened during cuts, missing intervals or edited transitions.

PSLE Science Reality Lab Vol No.074 | “It Survived the Drop Test” — Were Both Products Dropped the Same Way?

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A Primary 5/6 Reality Lab guide to evaluating dramatic product drop tests. Learn to separate a demonstration from a fair comparison by checking drop height, surface, orientation, starting condition, repeats and the outcome that was actually measured.

PSLE Science Reality Lab Vol No.073 | “Both Lines Start at 100” — Were Their Real Starting Values the Same?

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A Primary 5/6 Reality Lab guide to charts that rebase different measurements to 100. Learn to separate relative change from original absolute level, recover the base period and avoid reading equal index values as equal real quantities.

PSLE Science Reality Lab Vol No.072 | “Removes 99%” — 99% of What Was There at the Start, and What Is Left?

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A Primary 5/6 Reality Lab guide to percentage-removal claims: identify the starting quantity, match before-and-after measurements, calculate what remains, inspect test conditions and avoid confusing a high percentage with zero remaining.

PSLE Science Reality Lab Vol No.071 | “Tested for 10,000 Cycles” — Does an Accelerated Test Prove Years of Normal Use?

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A Primary 5/6 Reality Lab guide to accelerated durability claims: how to separate test cycles from ordinary-use lifetime, inspect added stresses, compare failure modes and decide how far a laboratory result can travel.

PSLE Science Reality Lab Vol No.070 | “Three Sensors Agree” — Can They All Share the Same Bias?

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