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Flashcards

science equipment and key terms

schoolstudy1 Inglês 48 flashcards

science equipment and key terms

Flashcards do conjunto (48)

  1. 1what is this called?this is a PIPETTEwhat is this called?
  2. 2what is a molecule?a molecule is the smallest part of an element or compound that can exist on its own / two or more atoms grouped together
  3. 3explain the term "mixture".a mixture is two or more substances mixed together without a chemical reaction
  4. 4what is this called?a conical flaskwhat is this called?
  5. 5what is an element ?an element is a substance that cannot be split into any simpler substances by chemical means.
    e.g copper ,gold ,hydrogen,chloride
  6. 6what kind of molecules does a solid have?a solid has tightly packed molecules so there is no space for them to move.what kind of molecules does a solid have?
  7. 7what kind of molecules does a liquid have?a liquid has closely packed molecules with a little bit of space so that the liquid can flow.what kind of molecules does a liquid have?
  8. 8what kind of molecules does gas have?gas has very loosely packed molecules scattered about the place which means they have loads of space to move so the gas difuses.what kind of molecules does gas have?
  9. 9what is an atom?an atom is the smallest part of an element that still has the same properties of that element.
    e.g CO2
  10. 10explain a physical change.a physical change is one in which no new substance is made
    e.g tearing paper
  11. 11explain a chemical change.a chemical change is a change in which a new substance is made.
    e.g burning paper, rusting , milk going sour
  12. 12what is a compound?a compound is 2 or more elements chemically combined.
    e.g water, sodium chloride , carbon dioxide
  13. 13name the parts of this microscope.name the parts of this microscope.name the parts of this microscope.
  14. 14what does this symbol mean?it means oxidising.
    (causes flammable substances to burn more fiercely)    what does this symbol mean?
  15. 15this is a diagram of a plant cell. label the drawinga- cell wall
    b- large central vacuole
    c- nucleus
    d- cytoplasm
    e- chloroplasts    this is a diagram of a plant cell. label the drawing
  16. 16name two differences between plant cells and animal cells1) plant cells have a large central vacuole animal cells don't
    2) plant cells have a cell wall.
  17. 17what do you use to stain plant cells so you can see them under the microscope?iodine.
  18. 18what is a tissue?it's a group of similar cells with a special function (e.g muscle,nerve)
  19. 19what is an organ?an organ is a group of different tissues that work together to carry out a special function.
    e.g the heart, the ears,stomach lungs.    what is an organ?
  20. 20what is a system?a system is a group of organs working together .
    e.g the digestive system    what is a system?
  21. 21name this piece of equipment and label the main parts.this is called a Bunsen burnername this piece of equipment and label the main parts.name this piece of equipment and label the main parts.
  22. 22name the 7 characteristics of living things1) movement
    2) growth
    3) feeding
    4) sensitivity
    5) respiration
    6) reproduction
    7) excretion
  23. 23label this diagram of an animal cellA- cell membrane
    B- nucleus
    C- cytoplasm
    (the little circles are vacuoles btw)    label this diagram of an animal cell
  24. 24what is the definition of the word "cell"a cell is a basic unit of life
  25. 25what is an organism?an organism is a group of systems working together.
    e.g humans,fish,insect,plants
  26. 26name two ways to measure a curve1) a curvy metre
    2) a piece of string
  27. 27how do you measure diameter/thickness1) simple calliper
    2) vernier calliper (very accurate)    how do you measure diameter/thickness
  28. 28how do you find the area of a regular shape?length x width
  29. 29how do you measure volume?length x width x length
  30. 30what kind of energy does a battery havechemical
  31. 31give an example of potential energystretched elastic band
  32. 32what is the law of conservation of energyenergy cannot be created or destroyed only changed from one form to another.
  33. 33what is "renewable" energy?sources can be used again and again
  34. 34what is "non renewable" energy?sources are only used one and never again.
  35. 35what is "matter"?matter is anything that takes up space and has mass.
  36. 36all matter is made up of _______ called ______. (fill in the blanks)all matter is made up of particles called molecules.
  37. 37what does "difuse" mean?e.g gas difuses by spreading round the air/room and not staying in the one place.
  38. 38at what temperature does water boil at?water boils at 100 °C
  39. 39what temperature does water freeze at?0 °C
  40. 40the difference between boiling and evaporating?boiling-the liquid changes to a gas throughout the liquid
    evaporating-liquid changes to a gas at the surface only
  41. 41what is a solution?a solution is a mixture of a solute and a solvent
  42. 42what is a solvent?a liquid in which the substance dissolves.
  43. 43what is a solute ?the substance placed in the solvent
  44. 44whats an insolubile solid?a solid that does not dissolve
  45. 45what is a soluble solid?a solid that does dissolve
  46. 46examples of solutes and solventssolutes solvents
    tar petrol
    paint white spirits
    p marker highlighter
  47. 47what is a dilute solution?a dilute solution has lots of solvent and a little solute.
  48. 48what are these called?tripod and wire gauzewhat are these called?

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see how well you know your science equipment and key terms
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schoolstudy1
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