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Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 176 · 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 glass of water (b) yeast (c) food colour (d) a few hours of waiting
  2. 2.⚖️ 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 amount of water (c) the amount of colour (d) the kind of flower
  3. 3.True or false: a glass marble lets water climb up it. (a) False (b) True
  4. 4.🧺 Which of these is not needed for the coloured flower experiment? (a) yeast (b) food colour (c) a glass of water (d) a white flower
  5. 5.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the water turns green (c) the flower floats away (d) the petals turn bluish
  6. 6.🛟 What should you do after handling food colour? (a) rub your eyes (b) lick your fingers (c) wipe them on walls (d) wash your hands
  7. 7.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) petals lose water to air (c) petals are magnetic (d) the stem is hot
  8. 8.True or false: a paper towel does not let water climb. (a) True (b) False
  9. 9.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) food colour (c) a white flower (d) a glass of water
  10. 10.True or false: a steel spoon does not let water climb. (a) False (b) True
  11. 11.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
  12. 12.⚖️ 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
  13. 13.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the petals turn red (c) no colour change (d) the stem turns blue
  14. 14.True or false: a white flower is not needed for the coloured flower experiment. (a) False (b) True
  15. 15.⚖️ 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
  16. 16.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is what we measure. (a) True (b) False
  17. 17.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) turmeric powder (c) a glass of water (d) yeast
  18. 18.🧺 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) food colour (d) a white flower
  19. 19.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through tiny stem tubes (c) through the air (d) it rains on them
  20. 20.⚖️ 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 kind of flower (c) time for colour to show
  21. 21.🔍 Which is the odd one out? (a) a piece of foil (b) a cotton thread (c) a glass marble (d) a rubber eraser
  22. 22.🧺 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 glass of water
  23. 23.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
  24. 24.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
  25. 25.⚖️ 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 amount of colour (c) time for colour to show
  26. 26.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
  27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) food colour (c) a glass of water (d) a white flower
  28. 28.True or false: food colour is needed for the coloured flower experiment. (a) True (b) False
  29. 29.⚖️ 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
  30. 30.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a steel spoon (c) a plastic ruler (d) a paper towel
  31. 31.⚖️ 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
  32. 32.🛟 Who should trim the flower stem? (a) a toddler (b) a grown-up (c) anyone, without looking (d) a pet
  33. 33.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of colour”? (a) we measure it (b) we keep it the same (c) we change it
  34. 34.⚖️ 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 measure it (b) we keep it the same (c) we change it
  35. 35.💧 Which of these does not let water climb? (a) a plastic ruler (b) a flower stem (c) a sugar cube (d) a strip of cloth
  36. 36.⚖️ 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 measure it (b) we keep it the same (c) we change it
  37. 37.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
  38. 38.True or false: a white flower is needed for the coloured flower experiment. (a) True (b) False
  39. 39.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
  40. 40.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb

Answer key

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

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