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Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 335 · 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.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a white flower (c) a magnet (d) yeast
  2. 2.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the flower glows (c) the stem turns blue (d) the petals turn red
  3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a white flower (c) a few hours of waiting (d) a balloon
  4. 4.🔍 Which is the odd one out? (a) a piece of chalk (b) a cotton thread (c) a glass marble (d) a strip of cloth
  5. 5.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is the one thing we change. (a) False (b) True
  6. 6.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a white flower (c) food colour (d) a battery cell
  7. 7.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
  8. 8.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the room it stands in”? (a) we keep it the same (b) we measure it (c) we change it
  9. 9.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
  10. 10.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) True (b) False
  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 the one thing we change. (a) False (b) True
  12. 12.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is what we measure? (a) time for colour to show (b) the room it stands in (c) the kind of flower (d) the amount of colour
  13. 13.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
  14. 14.🔍 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
  15. 15.🛟 What should you do after handling food colour? (a) wipe them on walls (b) rub your eyes (c) lick your fingers (d) wash your hands
  16. 16.🌼 How does coloured water reach the petals? (a) through the air (b) through tiny stem tubes (c) it is sprayed on (d) it rains on them
  17. 17.⚖️ 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
  18. 18.💧 Which of these lets water climb up it? (a) a glass marble (b) a steel spoon (c) a sugar cube (d) a rubber eraser
  19. 19.True or false: a flower stem does not let water climb. (a) False (b) True
  20. 20.True or false: a rubber eraser does not let water climb. (a) True (b) False
  21. 21.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) nothing ever happens (c) it sinks at once (d) colour climbs up it
  22. 22.🔍 Which is the odd one out? (a) a plastic ruler (b) a glass marble (c) a flower stem (d) a steel spoon
  23. 23.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a battery cell (c) food colour (d) a mirror
  24. 24.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is what we measure. (a) True (b) False
  25. 25.⚖️ 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 keep it the same (b) we change it (c) we measure it
  26. 26.⚖️ 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) False (b) True
  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) time for colour to show (b) the amount of colour (c) the length of the stem
  28. 28.⚖️ 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 amount of colour (d) the length of the stem
  29. 29.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a glass of water (c) a magnet (d) food colour
  30. 30.True or false: a piece of foil does not let water climb. (a) False (b) True
  31. 31.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
  32. 32.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
  33. 33.🛟 Who should trim the flower stem? (a) a pet (b) a toddler (c) a grown-up (d) anyone, without looking
  34. 34.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a mirror (c) food colour (d) a white flower
  35. 35.True or false: turmeric powder is needed for the coloured flower experiment. (a) False (b) True
  36. 36.🧺 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
  37. 37.⚖️ 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) True (b) False
  38. 38.🌼 Why do the petals keep pulling water up the stem? (a) petals lose water to air (b) the stem is hot (c) petals are magnetic (d) petals like colour
  39. 39.True or false: a cotton thread does not let water climb. (a) False (b) True
  40. 40.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) a glass of water (c) a white flower (d) a few hours of waiting

Answer key

  1. a white flower
  2. no colour change
  3. a balloon
  4. a glass marble
  5. False
  6. a battery cell
  7. not needed
  8. we keep it the same
  9. not needed
  10. False
  11. False
  12. time for colour to show
  13. not needed
  14. the petals turn bluish
  15. wash your hands
  16. through tiny stem tubes
  17. the amount of water
  18. a sugar cube
  19. False
  20. True
  21. colour climbs up it
  22. a flower stem
  23. food colour
  24. True
  25. we keep it the same
  26. False
  27. the amount of colour
  28. the length of the stem
  29. a magnet
  30. True
  31. water climbs up it
  32. water climbs up it
  33. a grown-up
  34. a mirror
  35. False
  36. yeast
  37. False
  38. petals lose water to air
  39. False
  40. a magnet

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