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Misconceptions In Science

Discussion in 'Science' started by Apple101, Jul 7, 2016.

  1. harsh-but-fair

    harsh-but-fair Star commenter

    The true aristocracy of the world. Bow down to our undersea masters.
    harrygrowler2011 and barclayfox like this.
  2. ellisb58

    ellisb58 New commenter

    I teach atomic structure, total nonsense I agree, so glad you posted this, I thought it was me being too highbrow or not really understanding the model anyway, other teachers seem happy to teach it, guess I need to embrace it and throw myself into the details again
    cellerdore likes this.
  3. blazer

    blazer Star commenter

    This week my wife and I attended a reading workshop at our grand daughter's primary school (she is yr 4). Working alongside her we were taken through a series of exercises and activities to show us how we can assist her at home when she reads to us. These were very good and useful. The last exercise was about extracting key facts from text. The text began ' Invertebrates are a species of animal that do not have a backbone'. Now given that one of the earlier exercises had been using a dictionary to find out the specific meaning of words I pointed out to the teacher running the show the error in stating that invertebrates were a species and that the word species has a very specific meaning in science. I tried to explain that in secondary science we often have difficulty unteaching wrong concepts taught in primary. I don't think he believed me.
    Monikas72, englishdragon and wanet like this.
  4. blazer

    blazer Star commenter

    They have a copper based oxygen transport system, not iron.
  5. dunnocks

    dunnocks Star commenter

    year 9 and today I experienced it teaching yer 10 genetics too, so many students simply don't believe me about xx chromosomes in a female and xy in a male, and that these cannot be changed. They just plain don't believe me
  6. sparkleghirl

    sparkleghirl Star commenter

    Anything I tell my Y7s that they didn't already 'know', they just ignore. I am wasting my breath on them.
  7. cellerdore

    cellerdore Occasional commenter

    Probably because they have been told for so long that men and woman are the same?
  8. Vince_Ulam

    Vince_Ulam Star commenter

    Actual contents may vary.
    miss charlie likes this.
  9. TCSC47

    TCSC47 Star commenter

    How do you tell the sex of a chromosome?

    Take off its genes!
    Moony likes this.
  10. geoff1954

    geoff1954 New commenter

    Eh? Fast moving particles are no less dense than others. They already have increased thermal energy (which is why they are described as 'hot'.)
  11. geoff1954

    geoff1954 New commenter

    The particles making up a liquid are further apart than those in a solid.
  12. Moony

    Moony Lead commenter

    Hot air balloons. The particles are moving faster because of the thermal energy being supplied so they spread out more and that portion of the air is less dense.
  13. sensuscommunis1710

    sensuscommunis1710 New commenter

    that all science in the curriculum is possible to conclude by 'working scientifically'! lol the distinction between knowledge, knowable using the scientific method and conceptual / belief system theories is becoming more and more blurred as time goes on. Great thread to read through ;)
    harrygrowler2011 likes this.
  14. harrygrowler2011

    harrygrowler2011 New commenter

    Interesting comment!
  15. cariadwch

    cariadwch Established commenter

    Theres an Indonesian lizard that has green blood as it has high levels of biliverdin in its blood. Biliverdin is what makes our eyes appear yellow with jaundice but the lizard thrives on it. Its transports oxygen through haemoglobin though just the additional yellow makes the blood green. Then theres an Antarctic icefish that has colourless blood. The fish has evolved to be scaleless and as extremely cold Polar water holds a lot more oxygen than warmer water so the fish can absorb it through its skin and transport it with its very large heart.
    BW12345 likes this.
  16. gainly

    gainly Star commenter

    Just been reading this interesting thread. Surely the above is technically correct; there is nobody called Newton (or indeed anything else) on the moon.
  17. Vince_Ulam

    Vince_Ulam Star commenter

    Nor were there any teachers in that classroom.
  18. geoff1954

    geoff1954 New commenter

    Another misconception currently in the news: when a plane decompresses due to a hole in the fuselage objects can be 'sucked out' of the hole.
  19. gainly

    gainly Star commenter

    The concept that the sun is on fire may be reinforced by the fact that nuclear fusion of hydrogen to helium is actually referred to as "hydrogen burning".
  20. CheeseMongler

    CheeseMongler Lead commenter

    Depends on the size and mass of the object surely, or are you just objecting to the term "sucked out"?
    Never heard that and had to search... it looks like it's only astronomers that do this, all other science web pages I can find consider "hydrogen burning" to mean combustion.

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