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Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 998 · 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.⚖️ 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 measure it (b) we change it (c) we keep it the same
  2. 2.True or false: a flower stem does not let water climb. (a) True (b) False
  3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a few hours of waiting (c) a white flower (d) food colour
  4. 4.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
  5. 5.🧺 Do we need a white flower 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? True or false: the kind of flower is kept the same. (a) True (b) False
  7. 7.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
  8. 8.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
  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) True (b) False
  10. 10.⚖️ 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 keep it the same (b) we change it (c) we measure it
  11. 11.💧 Which of these does not let water climb? (a) a steel spoon (b) a paper towel (c) a strip of cloth (d) a piece of chalk
  12. 12.💧 Which of these does not let water climb? (a) a plastic ruler (b) a strip of cloth (c) a sugar cube (d) a paper towel
  13. 13.🔮 What would change if the flower stood in plain water? (a) the stem turns blue (b) the petals turn red (c) the flower glows (d) no colour change
  14. 14.🛟 What should you do after handling food colour? (a) rub your eyes (b) wash your hands (c) lick your fingers (d) wipe them on walls
  15. 15.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a magnet (c) a balloon (d) food colour
  16. 16.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True
  17. 17.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a mirror (c) a few hours of waiting (d) a white flower
  18. 18.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a magnet (c) a white flower (d) a few hours of waiting
  19. 19.⚖️ 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
  20. 20.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the length of the stem”? (a) we change it (b) we keep it the same (c) we measure it
  21. 21.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a steel spoon (c) a strip of cloth (d) a glass marble
  22. 22.⚖️ 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 kind of flower (b) the amount of water (c) the length of the stem (d) time for colour to show
  23. 23.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) magnetism (c) capillary action (d) melting
  24. 24.⚖️ 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 length of the stem (b) the room it stands in (c) time for colour to show
  25. 25.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
  26. 26.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) a glass of water (c) a white flower (d) food colour
  27. 27.⚖️ 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) the length of the stem (c) time for colour to show
  28. 28.⚖️ 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
  29. 29.True or false: a flower stem lets water climb up it. (a) False (b) True
  30. 30.True or false: a sugar cube lets water climb up it. (a) False (b) True
  31. 31.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
  32. 32.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is what we measure. (a) True (b) False
  33. 33.⚖️ 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 kept the same. (a) False (b) True
  34. 34.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) it sinks at once (c) colour climbs up it (d) nothing ever happens
  35. 35.True or false: food colour is needed for the coloured flower experiment. (a) True (b) False
  36. 36.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
  37. 37.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
  38. 38.⚖️ 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
  39. 39.⚖️ 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 length of the stem (b) time for colour to show (c) the amount of water
  40. 40.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it

Answer key

  1. we keep it the same
  2. False
  3. a battery cell
  4. water does not climb
  5. needed
  6. True
  7. not needed
  8. not needed
  9. True
  10. we measure it
  11. a steel spoon
  12. a plastic ruler
  13. no colour change
  14. wash your hands
  15. food colour
  16. False
  17. a mirror
  18. a magnet
  19. True
  20. we change it
  21. a strip of cloth
  22. the length of the stem
  23. capillary action
  24. the room it stands in
  25. water does not climb
  26. yeast
  27. the kind of flower
  28. False
  29. True
  30. True
  31. needed
  32. False
  33. False
  34. colour climbs up it
  35. True
  36. not needed
  37. False
  38. True
  39. the amount of water
  40. water climbs up it

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