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Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 626 · 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.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
  2. 2.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
  3. 3.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
  4. 4.⚖️ 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) False (b) True
  5. 5.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
  6. 6.🔍 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 petals turn bluish (d) the flower floats away
  7. 7.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) turmeric powder (c) food colour (d) a white flower
  8. 8.⚖️ 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 length of the stem (b) the kind of flower (c) the room it stands in (d) time for colour to show
  9. 9.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they fall off at once (c) they all turn green (d) they turn two colours
  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 measure it (b) we keep it the same (c) we change it
  11. 11.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a mirror (c) a white flower (d) a few hours of waiting
  12. 12.⚖️ 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 length of the stem (c) the room it stands in
  13. 13.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a magnet (c) a few hours of waiting (d) a glass of water
  14. 14.⚖️ 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 what we measure. (a) False (b) True
  15. 15.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) a white flower (c) a glass of water (d) a few hours of waiting
  16. 16.🌼 How does coloured water reach the petals? (a) it rains on them (b) through the air (c) through tiny stem tubes (d) it is sprayed on
  17. 17.⚖️ 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 room it stands in
  18. 18.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of chalk (c) a rubber eraser (d) a glass marble
  19. 19.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a glass of water (c) a mirror (d) a battery cell
  20. 20.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
  21. 21.🧺 Which of these is not needed for the coloured flower experiment? (a) a mirror (b) a glass of water (c) food colour (d) a white flower
  22. 22.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
  23. 23.🔮 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
  24. 24.True or false: a plastic ruler lets water climb up it. (a) False (b) True
  25. 25.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) a white flower (d) yeast
  26. 26.🛟 What should you do after handling food colour? (a) lick your fingers (b) wipe them on walls (c) rub your eyes (d) wash your hands
  27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) food colour (d) a battery cell
  28. 28.💧 Which of these lets water climb up it? (a) a cotton thread (b) a piece of foil (c) a plastic ruler (d) a steel spoon
  29. 29.⚖️ 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 change it (c) we measure it
  30. 30.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
  31. 31.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a few hours of waiting (c) turmeric powder (d) a white flower
  32. 32.⚖️ 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
  33. 33.True or false: a sugar cube lets water climb up it. (a) False (b) True
  34. 34.📘 What is it called when water climbs up thin tubes or paper by itself? (a) capillary action (b) melting (c) magnetism (d) evaporation
  35. 35.True or false: a piece of chalk lets water climb up it. (a) False (b) True
  36. 36.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
  37. 37.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
  38. 38.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
  39. 39.True or false: a steel spoon lets water climb up it. (a) True (b) False
  40. 40.True or false: a piece of chalk does not let water climb. (a) False (b) True

Answer key

  1. False
  2. not needed
  3. not needed
  4. True
  5. needed
  6. the petals turn bluish
  7. turmeric powder
  8. time for colour to show
  9. they turn two colours
  10. we measure it
  11. a mirror
  12. the room it stands in
  13. a magnet
  14. False
  15. a balloon
  16. through tiny stem tubes
  17. the length of the stem
  18. a piece of chalk
  19. a glass of water
  20. water does not climb
  21. a mirror
  22. False
  23. colour climbs up it
  24. False
  25. yeast
  26. wash your hands
  27. a battery cell
  28. a cotton thread
  29. we change it
  30. needed
  31. turmeric powder
  32. the kind of flower
  33. True
  34. capillary action
  35. True
  36. not needed
  37. not needed
  38. water climbs up it
  39. False
  40. False

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