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Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 768 · 40 questions
TalentJR

What you do (Water climbs thin tubes): 1. Mix food colour into a glass of water. 2. An adult trims the flower stem and stands it in the coloured water. 3. Check the petals every few hours and draw what you see. 4. Wash your hands after handling food colour.

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  1. 1.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a glass of water (d) a magnet
  2. 2.True or false: a paper towel lets water climb up it. (a) False (b) True
  3. 3.💧 Which of these lets water climb up it? (a) a glass marble (b) a plastic ruler (c) a piece of chalk (d) a rubber eraser
  4. 4.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
  5. 5.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the length of the stem is the one thing we change. (a) True (b) False
  6. 6.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they turn two colours (b) they stay white (c) they fall off at once (d) they all turn green
  7. 7.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wash your hands (d) wipe them on walls
  8. 8.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
  9. 9.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is kept the same. (a) False (b) True
  10. 10.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a glass of water (d) yeast
  11. 11.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is kept the same. (a) False (b) True
  12. 12.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
  13. 13.🔍 Which is the odd one out? (a) a piece of chalk (b) a plastic ruler (c) a flower stem (d) a paper towel
  14. 14.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is kept the same? (a) the kind of flower (b) time for colour to show (c) the length of the stem
  15. 15.💧 Which of these lets water climb up it? (a) a paper towel (b) a plastic ruler (c) a glass marble (d) a rubber eraser
  16. 16.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is kept the same? (a) time for colour to show (b) the length of the stem (c) the amount of colour
  17. 17.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a white flower (c) a magnet (d) yeast
  18. 18.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is what we measure. (a) True (b) False
  19. 19.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
  20. 20.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
  21. 21.True or false: a piece of foil lets water climb up it. (a) True (b) False
  22. 22.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
  23. 23.🔍 Which is the odd one out? (a) a plastic ruler (b) a rubber eraser (c) a piece of foil (d) a flower stem
  24. 24.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
  25. 25.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the stem turns to ice (c) the water turns green (d) the petals turn bluish
  26. 26.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a glass of water (d) turmeric powder
  27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a mirror (c) a few hours of waiting (d) a glass of water
  28. 28.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals lose water to air (c) petals like colour (d) petals are magnetic
  29. 29.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is the one thing we change. (a) False (b) True
  30. 30.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is what we measure? (a) the amount of colour (b) the kind of flower (c) the room it stands in (d) time for colour to show
  31. 31.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the room it stands in is kept the same. (a) True (b) False
  32. 32.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
  33. 33.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a glass of water (c) a magnet (d) food colour
  34. 34.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
  35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a glass of water (c) food colour (d) a battery cell
  36. 36.True or false: a paper towel does not let water climb. (a) False (b) True
  37. 37.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is the one thing we change? (a) time for colour to show (b) the amount of colour (c) the length of the stem (d) the kind of flower
  38. 38.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) turmeric powder (c) a few hours of waiting (d) a white flower
  39. 39.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is kept the same. (a) True (b) False
  40. 40.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a sugar cube (c) a piece of foil (d) a glass marble

Answer key

  1. a magnet
  2. True
  3. a piece of chalk
  4. needed
  5. True
  6. they turn two colours
  7. wash your hands
  8. we keep it the same
  9. True
  10. yeast
  11. True
  12. not needed
  13. a plastic ruler
  14. the kind of flower
  15. a paper towel
  16. the amount of colour
  17. a white flower
  18. False
  19. False
  20. water does not climb
  21. False
  22. water climbs up it
  23. a flower stem
  24. needed
  25. the petals turn bluish
  26. turmeric powder
  27. a mirror
  28. petals lose water to air
  29. False
  30. time for colour to show
  31. True
  32. not needed
  33. a magnet
  34. water climbs up it
  35. a battery cell
  36. False
  37. the length of the stem
  38. turmeric powder
  39. True
  40. a sugar cube

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