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Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 64 · 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 amount of water”? (a) we keep it the same (b) we change it (c) we measure it
  2. 2.True or false: a cotton thread lets water climb up it. (a) False (b) True
  3. 3.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it turns to plastic (c) it sinks at once (d) colour climbs up it
  4. 4.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a battery cell (c) a white flower (d) a few hours of waiting
  5. 5.⚖️ 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 amount of colour (c) the length of the stem (d) the kind of flower
  6. 6.⚖️ 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
  7. 7.⚖️ 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
  8. 8.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
  9. 9.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a few hours of waiting (c) a balloon (d) a battery cell
  10. 10.⚖️ 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 room it stands in (b) time for colour to show (c) the length of the stem
  11. 11.💧 Dip a rubber eraser 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 length of the stem”? (a) we keep it the same (b) we measure it (c) we change it
  13. 13.⚖️ 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) time for colour to show (c) the length of the stem
  14. 14.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wash your hands (d) wipe them on walls
  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) the amount of water (b) the length of the stem (c) time for colour to show (d) the room it stands in
  16. 16.🧺 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 mirror
  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 the one thing we change. (a) False (b) True
  18. 18.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
  19. 19.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) evaporation (c) capillary action (d) magnetism
  20. 20.🔍 Which is the odd one out? (a) a paper towel (b) a plastic ruler (c) a sugar cube (d) a cotton thread
  21. 21.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a balloon (c) food colour (d) a mirror
  22. 22.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
  23. 23.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a magnet (c) a glass of water (d) a few hours of waiting
  24. 24.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) food colour (c) a glass of water (d) a white flower
  25. 25.⚖️ 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 kept the same. (a) True (b) False
  26. 26.🔍 Which is the odd one out? (a) a plastic ruler (b) a rubber eraser (c) a paper towel (d) a steel spoon
  27. 27.🧺 Which of these is not needed for the coloured flower experiment? (a) a battery cell (b) a glass of water (c) a white flower (d) food colour
  28. 28.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
  29. 29.True or false: a battery cell is not needed for the coloured flower experiment. (a) False (b) True
  30. 30.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
  31. 31.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) True (b) False
  32. 32.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a white flower (d) a balloon
  33. 33.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
  34. 34.⚖️ 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
  35. 35.True or false: a piece of chalk lets water climb up it. (a) True (b) False
  36. 36.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
  37. 37.🛟 Who should trim the flower stem? (a) a grown-up (b) a pet (c) a toddler (d) anyone, without looking
  38. 38.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
  39. 39.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
  40. 40.⚖️ 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

Answer key

  1. we keep it the same
  2. True
  3. colour climbs up it
  4. a battery cell
  5. the length of the stem
  6. True
  7. False
  8. not needed
  9. a few hours of waiting
  10. the room it stands in
  11. water does not climb
  12. we change it
  13. the amount of water
  14. wash your hands
  15. time for colour to show
  16. a mirror
  17. False
  18. not needed
  19. capillary action
  20. a plastic ruler
  21. food colour
  22. False
  23. a magnet
  24. yeast
  25. False
  26. a paper towel
  27. a battery cell
  28. water does not climb
  29. True
  30. water climbs up it
  31. False
  32. a balloon
  33. False
  34. False
  35. True
  36. not needed
  37. a grown-up
  38. False
  39. water climbs up it
  40. False

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