Category: Science
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PSLE Science Reality Lab Vol No.023 | “We Tested 100 Samples” — Were They All From the Same Batch?
A Primary 5/6 PSLE Science Reality Lab guide to evaluating large-sample claims: distinguish many measurements from representative coverage, check batches and sources, and limit conclusions to what was actually sampled.
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PSLE Science Reality Lab Vol No.022 | “Look at the Before and After” — Are the Two Pictures Really Comparable?
A Primary 5/6 PSLE Science Reality Lab guide to evaluating before-and-after photographs: check viewpoint, scale, lighting, timing, object identity and measurement conditions before treating a visual difference as scientific evidence of change.
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PSLE Science Reality Lab Vol No.021 | “The Picture Is Twice as Big” — Does a Bigger Icon Mean a Bigger Scientific Effect?
A Primary 5/6 PSLE Science Reality Lab guide to evaluating infographics that resize pictures or icons: return to the numbers, distinguish length from area and volume, check the visual scale, and stop decoration from exaggerating a scientific effect.
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PSLE Science Reality Lab Vol No.020 | “The Company Paid for the Study” — Does Funding Decide Whether the Result Is True?
A Primary 5/6 PSLE Science Reality Lab guide to evaluating sponsored research without treating funding as automatic proof or disproof: examine the method, transparency, outcome choices, reporting and independent evidence.
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PSLE Science Reality Lab Vol No.019 | “Recyclable” — Recyclable Where, and What Has to Happen After the Bin?
A Primary 5/6 PSLE Science Reality Lab guide to evaluating “recyclable” claims by separating material possibility from real collection, sorting, contamination, processing and recovery conditions.
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PSLE Science Reality Lab Vol No.018 | “Certified” — What Exactly Was Checked, and What Was Not?
A Primary 5/6 PSLE Science Reality Lab guide to reading certification and standards marks scientifically: identify the exact requirement checked, the scope of the assessment, who assessed it, and which wider claims the mark does not prove.
