Author: eduKate Asia

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A massive Primary 5/6 PSLE Science Reality Lab guide to apparent magnitude: learn why lower magnitude numbers are brighter, why the scale is not linear, and how to evaluate astronomy apps, tables and headlines without treating the printed numerals as direct brightness amounts.

PSLE Science Reality Lab Vol No.473 | “Long-Exposure Star Trails” — Did the Stars Really Draw Bright Lines Across Space?

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A massive Primary 5/6 PSLE Science Reality Lab guide to long-exposure star trails: learn how one image can accumulate changing apparent positions over time, why the trails are not physical glowing tracks, and how to check exposure, stacking and camera motion.

PSLE Science Reality Lab Vol No.472 | “30× Genome Coverage” — Was Every DNA Base Read Exactly 30 Times?

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A massive Primary 5/6 PSLE Science Reality Lab guide to 30× genome coverage: learn why an average sequencing-depth label does not mean every DNA base was read exactly 30 times, and how to check local evidence and coverage distribution.

PSLE Science Reality Lab Vol No.471 | “Phase-Folded Light Curve” — Is This One Continuous Orbit?

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A massive Primary 5/6 PSLE Science Reality Lab guide to phase-folded light curves: learn why repeated cycles can appear as one tidy curve, how to recover the original time evidence, and how to test whether the pattern supports the claim.

PSLE Science Reality Lab Vol No.470 | “Research Grade” — Does That Mean the Species Identification Is Definitely Correct?

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A massive Primary 5/6 PSLE Science Reality Lab guide to Research Grade citizen-science observations: learn what the status criteria mean, why community agreement is useful but not infallible, and how provenance and scope control scientific claims.

PSLE Science Reality Lab Vol No.469 | “GPS Track” — Did the Animal Really Walk Along Every Straight Line on the Map?

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