Category: Science

—

by

A massive Primary 5/6 PSLE Science Reality Lab guide to durability claims: learn why an item still working when a test stops has survived at least that long, not necessarily failed at that exact time.

PSLE Science Reality Lab Vol No.119 | “We Retested Only the Lowest Results, and They Improved” — Could Selection Alone Create the Pattern?

—

by

A massive Primary 5/6 PSLE Science Reality Lab guide to extreme-result selection and retesting: learn why unusually low or high first measurements can look less extreme later even without an effective intervention.

PSLE Science Reality Lab Vol No.118 | “The Sample Label Matches” — Can We Prove This Is Still the Same Sample?

—

by

A massive Primary 5/6 PSLE Science Reality Lab guide to sample identity and chain of custody: learn how labels, handoff records, seals and sample histories support scientific provenance without proving that a sample was unchanged.

PSLE Science Reality Lab Vol No.117 | “The Error Bars Are Tiny” — Does That Mean the Measurement Is Accurate?

—

by

A Primary 5/6 PSLE Science Reality Lab guide to error bars: learn why small bars can show low spread or a precise estimate without proving that a measurement is close to the true or reference value.

PSLE Science Reality Lab Vol No.116 | “No Statistically Significant Difference” — Does That Prove the Two Results Are the Same?

—

by

A Primary 5/6 PSLE Science Reality Lab guide to null-result headlines: learn why “no statistically significant difference” is not the same as proving two treatments, materials or conditions are scientifically identical.

PSLE Science Reality Lab Vol No.115 | “This Region Looks Twice as Large on the Map” — Does the Projection Preserve Area?

—

by