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Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 57 · 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.🌼 How does coloured water reach the petals? (a) through the air (b) it rains on them (c) it is sprayed on (d) through tiny stem tubes
  2. 2.⚖️ 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
  3. 3.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
  4. 4.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
  5. 5.🧺 Which of these is not needed for the coloured flower experiment? (a) a mirror (b) a glass of water (c) a white flower (d) food colour
  6. 6.⚖️ 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) False (b) True
  7. 7.🔮 What would change if the flower stood in plain water? (a) the stem turns blue (b) the flower glows (c) no colour change (d) the petals turn red
  8. 8.⚖️ 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) True (b) False
  9. 9.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) nothing ever happens (c) it turns to plastic (d) colour climbs up it
  10. 10.⚖️ 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
  11. 11.⚖️ 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 measure it (b) we change it (c) we keep it the same
  12. 12.⚖️ 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 room it stands in (c) the amount of colour (d) the length of the stem
  13. 13.🔍 Which is the odd one out? (a) a cotton thread (b) a plastic ruler (c) a glass marble (d) a steel spoon
  14. 14.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
  15. 15.⚖️ 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 kind of flower (c) the amount of water (d) the length of the stem
  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) the kind of flower (b) the length of the stem (c) time for colour to show
  17. 17.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) petals are magnetic (c) petals lose water to air (d) the stem is hot
  18. 18.⚖️ 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
  19. 19.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a few hours of waiting (c) a battery cell (d) a glass of water
  20. 20.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is the one thing we change. (a) False (b) True
  21. 21.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True
  22. 22.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) a grown-up (d) anyone, without looking
  23. 23.🛟 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
  24. 24.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
  25. 25.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
  26. 26.⚖️ 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 change it (c) we measure it
  27. 27.⚖️ 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
  28. 28.True or false: food colour is needed for the coloured flower experiment. (a) True (b) False
  29. 29.True or false: a piece of chalk does not let water climb. (a) True (b) False
  30. 30.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
  31. 31.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
  32. 32.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
  33. 33.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a few hours of waiting (c) a mirror (d) a balloon
  34. 34.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
  35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a magnet (d) a few hours of waiting
  36. 36.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the flower floats away (c) the petals turn bluish (d) the stem turns to ice
  37. 37.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) turmeric powder (c) a glass of water (d) a few hours of waiting
  38. 38.True or false: a plastic ruler does not let water climb. (a) False (b) True
  39. 39.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
  40. 40.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a balloon (c) a mirror (d) a glass of water

Answer key

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

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