Grade 7

 
close-up of a human eye
Perception and Reality

Are things always as they seem?



Very tiny neurons.

Scientists have solved a classic optical illusion–and the answer’s in your neurons

Source: BBC: Science Focus

There is a famous optical illusion with two gray lines inside a number of black and white bars. The gray bars are the same color, but they appear lighter or darker depending on which bars are around them. Science was never sure why, but it seems the answer lies in you brain’s neurons and how fast they can fire.



How To Make Eyewitness Testimony More Reliable

Source: SciShow Psych (YouTube)

Eyewitness testimony can be really important when investigating crimes, but how can we make them more reliable? SciShow looks at the scientific and psychological evidence around several ways in which your memory can fail–and how we may be able to minimize these effects.


Man Getting Shocked While Repairing Lamp

The Dunning-Kruger Effect, or ‘why incompetent people think they’re amazing’

Source: TED Education

How good are you at basketball? What about playing an instrument? Psychological research suggests we’re not actually very good at evaluating our own abilities accurately. In fact, we frequently overestimate our own abilities thanks to something known as the Dunning-Kruger Effect.
















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