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Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 945 · 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 magnet (b) a few hours of waiting (c) a glass of water (d) a white flower
  2. 2.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
  3. 3.📘 What is it called when water climbs up thin tubes or paper by itself? (a) capillary action (b) magnetism (c) evaporation (d) melting
  4. 4.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a mirror (c) a few hours of waiting (d) a balloon
  5. 5.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wipe them on walls (d) wash your hands
  6. 6.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
  7. 7.⚖️ 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 amount of colour
  8. 8.⚖️ 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 amount of colour (b) the length of the stem (c) time for colour to show (d) the room it stands in
  9. 9.⚖️ 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
  10. 10.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) a magnet (c) a mirror (d) turmeric powder
  11. 11.🔍 Which is the odd one out? (a) a piece of foil (b) a plastic ruler (c) a steel spoon (d) a cotton thread
  12. 12.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
  13. 13.🔍 Which is the odd one out? (a) a strip of cloth (b) a piece of chalk (c) a cotton thread (d) a piece of foil
  14. 14.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
  15. 15.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
  16. 16.⚖️ 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 measure it (c) we keep it the same
  17. 17.🔍 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
  18. 18.💧 Which of these does not let water climb? (a) a cotton thread (b) a paper towel (c) a sugar cube (d) a steel spoon
  19. 19.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
  20. 20.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
  21. 21.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) turmeric powder (b) food colour (c) a glass of water (d) a few hours of waiting
  22. 22.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it sinks at once (c) it turns to plastic (d) colour climbs up it
  23. 23.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
  24. 24.💧 Which of these lets water climb up it? (a) a glass marble (b) a plastic ruler (c) a strip of cloth (d) a rubber eraser
  25. 25.True or false: a sugar cube does not let water climb. (a) True (b) False
  26. 26.⚖️ 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
  27. 27.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a glass of water (c) a magnet (d) yeast
  28. 28.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) food colour (c) a white flower (d) a glass of water
  29. 29.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a magnet (c) food colour (d) a balloon
  30. 30.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
  31. 31.⚖️ 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 kind of flower (b) the room it stands in (c) the length of the stem (d) time for colour to show
  32. 32.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the petals turn red (c) the stem turns blue (d) no colour change
  33. 33.🌼 Why do the petals keep pulling water up the stem? (a) petals lose water to air (b) petals like colour (c) the stem is hot (d) petals are magnetic
  34. 34.⚖️ 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
  35. 35.True or false: a strip of cloth does not let water climb. (a) False (b) True
  36. 36.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
  37. 37.⚖️ 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 measure it (b) we change it (c) we keep it the same
  38. 38.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) food colour (c) a few hours of waiting (d) a glass of water
  39. 39.🌼 How does coloured water reach the petals? (a) through the air (b) it is sprayed on (c) it rains on them (d) through tiny stem tubes
  40. 40.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a glass of water (c) a white flower (d) a few hours of waiting

Answer key

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

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