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Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 97 · 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 paper towel lets water climb up it. (a) True (b) False
  2. 2.🔍 Which is the odd one out? (a) a paper towel (b) a plastic ruler (c) a strip of cloth (d) a cotton thread
  3. 3.⚖️ 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 length of the stem (d) the kind of flower
  4. 4.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a glass of water (c) food colour (d) a magnet
  5. 5.⚖️ 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 room it stands in (b) the length of the stem (c) the kind of flower (d) time for colour to show
  6. 6.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
  7. 7.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) magnetism (c) capillary action (d) melting
  8. 8.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of foil (c) a flower stem (d) a glass marble
  9. 9.🔍 Which is the odd one out? (a) a steel spoon (b) a paper towel (c) a sugar cube (d) a strip of cloth
  10. 10.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
  11. 11.🔍 Which is the odd one out? (a) a piece of chalk (b) a rubber eraser (c) a plastic ruler (d) a piece of foil
  12. 12.🔍 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
  13. 13.⚖️ 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) True (b) False
  14. 14.🛟 What should you do after handling food colour? (a) wipe them on walls (b) rub your eyes (c) wash your hands (d) lick your fingers
  15. 15.⚖️ 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) True (b) False
  16. 16.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) food colour (c) a glass of water (d) a white flower
  17. 17.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
  18. 18.⚖️ 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
  19. 19.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a white flower (c) a few hours of waiting (d) a mirror
  20. 20.⚖️ 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 change it (b) we keep it the same (c) we measure it
  21. 21.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
  22. 22.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is kept the same. (a) False (b) True
  23. 23.🛟 Who should trim the flower stem? (a) a pet (b) anyone, without looking (c) a toddler (d) a grown-up
  24. 24.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
  25. 25.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) a white flower (d) yeast
  26. 26.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a balloon (c) food colour (d) a few hours of waiting
  27. 27.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
  28. 28.🔍 Which is the odd one out? (a) a strip of cloth (b) a glass marble (c) a paper towel (d) a flower stem
  29. 29.True or false: a piece of chalk does not let water climb. (a) False (b) True
  30. 30.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) a mirror (d) a white flower
  31. 31.⚖️ 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 change it (b) we keep it the same (c) we measure it
  32. 32.🧺 Which of these is not needed for the coloured flower experiment? (a) a battery cell (b) a glass of water (c) a few hours of waiting (d) food colour
  33. 33.🔮 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 all turn green (c) they turn two colours (d) they fall off at once
  34. 34.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a glass of water (c) yeast (d) a balloon
  35. 35.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
  36. 36.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True
  37. 37.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) yeast (c) a balloon (d) a few hours of waiting
  38. 38.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
  39. 39.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a glass of water (c) yeast (d) food colour
  40. 40.🔍 Which is the odd one out? (a) a plastic ruler (b) a rubber eraser (c) a paper towel (d) a steel spoon

Answer key

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

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