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Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 877 · 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.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
  2. 2.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
  3. 3.True or false: a piece of foil lets water climb up it. (a) False (b) True
  4. 4.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) food colour (c) a white flower (d) turmeric powder
  5. 5.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
  6. 6.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “time for colour to show”? (a) we change it (b) we measure it (c) we keep it the same
  7. 7.⚖️ 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) the room it stands in (b) the kind of flower (c) the length of the stem (d) the amount of colour
  8. 8.⚖️ 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
  9. 9.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the stem turns blue (c) no colour change (d) the petals turn red
  10. 10.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a balloon (c) a battery cell (d) food colour
  11. 11.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) turmeric powder (b) a few hours of waiting (c) a glass of water (d) a white flower
  12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a magnet (c) a glass of water (d) food colour
  13. 13.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
  14. 14.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) yeast (c) a few hours of waiting (d) food colour
  15. 15.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the stem turns to ice (c) the water turns green (d) the flower floats away
  16. 16.⚖️ 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 what we measure. (a) True (b) False
  17. 17.⚖️ 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) False (b) True
  18. 18.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) True (b) False
  19. 19.True or false: a piece of foil does not let water climb. (a) False (b) True
  20. 20.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the kind of flower”? (a) we change it (b) we measure it (c) we keep it the same
  21. 21.🔍 Which is the odd one out? (a) a strip of cloth (b) a paper towel (c) a cotton thread (d) a glass marble
  22. 22.🛟 What should you do after handling food colour? (a) wash your hands (b) wipe them on walls (c) lick your fingers (d) rub your eyes
  23. 23.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
  24. 24.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False
  25. 25.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a glass of water (c) food colour (d) a white flower
  26. 26.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a pet (d) a grown-up
  27. 27.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) it sinks at once (c) nothing ever happens (d) colour climbs up it
  28. 28.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) yeast (c) a mirror (d) a white flower
  29. 29.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
  30. 30.⚖️ 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 the one thing we change. (a) True (b) False
  31. 31.🔍 Which is the odd one out? (a) a piece of foil (b) a strip of cloth (c) a glass marble (d) a plastic ruler
  32. 32.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
  33. 33.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
  34. 34.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they all turn green (c) they fall off at once (d) they turn two colours
  35. 35.⚖️ 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 water (b) the kind of flower (c) the length of the stem (d) time for colour to show
  36. 36.⚖️ 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 amount of water (b) the length of the stem (c) time for colour to show
  37. 37.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a cotton thread (c) a steel spoon (d) a piece of foil
  38. 38.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) food colour (c) a glass of water (d) a white flower
  39. 39.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a glass marble (d) a piece of chalk
  40. 40.True or false: a flower stem lets water climb up it. (a) False (b) True

Answer key

  1. water climbs up it
  2. water does not climb
  3. False
  4. turmeric powder
  5. needed
  6. we measure it
  7. the length of the stem
  8. the kind of flower
  9. no colour change
  10. food colour
  11. turmeric powder
  12. a magnet
  13. needed
  14. yeast
  15. the petals turn bluish
  16. False
  17. True
  18. False
  19. True
  20. we keep it the same
  21. a glass marble
  22. wash your hands
  23. water climbs up it
  24. True
  25. a battery cell
  26. a grown-up
  27. colour climbs up it
  28. a white flower
  29. water does not climb
  30. False
  31. a strip of cloth
  32. False
  33. water climbs up it
  34. they turn two colours
  35. time for colour to show
  36. the amount of water
  37. a cotton thread
  38. a mirror
  39. a piece of chalk
  40. True

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