← Colour-changing flower: capillary action lesson New set →

Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 287 · 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.

NameDateTime takenScore ___ / 40
  1. 1.🛟 Who should trim the flower stem? (a) a toddler (b) a grown-up (c) anyone, without looking (d) a pet
  2. 2.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
  3. 3.⚖️ 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
  4. 4.🔮 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
  5. 5.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a few hours of waiting (c) food colour (d) turmeric powder
  6. 6.💧 Which of these lets water climb up it? (a) a flower stem (b) a piece of foil (c) a plastic ruler (d) a rubber eraser
  7. 7.💧 Which of these does not let water climb? (a) a flower stem (b) a sugar cube (c) a paper towel (d) a glass marble
  8. 8.True or false: a cotton thread lets water climb up it. (a) True (b) False
  9. 9.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) no colour change (c) the stem turns blue (d) the flower glows
  10. 10.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) evaporation (c) magnetism (d) capillary action
  11. 11.True or false: a magnet is needed for the coloured flower experiment. (a) False (b) True
  12. 12.⚖️ 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 kind of flower (c) time for colour to show (d) the length of the stem
  13. 13.🔍 Which is the odd one out? (a) a paper towel (b) a plastic ruler (c) a piece of chalk (d) a sugar cube
  14. 14.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) yeast (d) a white flower
  15. 15.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of foil (c) a glass marble (d) a paper towel
  16. 16.True or false: a sugar cube lets water climb up it. (a) False (b) True
  17. 17.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) food colour (c) a magnet (d) a glass of water
  18. 18.⚖️ 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 kept the same. (a) False (b) True
  19. 19.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they fall off at once (b) they all turn green (c) they turn two colours (d) they stay white
  20. 20.⚖️ 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 change it (b) we measure it (c) we keep it the same
  21. 21.True or false: food colour is needed for the coloured flower experiment. (a) True (b) False
  22. 22.⚖️ 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 kind of flower (c) the length of the stem
  23. 23.True or false: a balloon is needed for the coloured flower experiment. (a) False (b) True
  24. 24.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) food colour (c) a white flower (d) a glass of water
  25. 25.🔍 Which is the odd one out? (a) a plastic ruler (b) a rubber eraser (c) a piece of chalk (d) a piece of foil
  26. 26.⚖️ 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
  27. 27.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a glass of water (c) a few hours of waiting (d) yeast
  28. 28.⚖️ 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) the length of the stem (c) time for colour to show
  29. 29.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a battery cell (c) food colour (d) a few hours of waiting
  30. 30.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a battery cell (c) food colour (d) turmeric powder
  31. 31.True or false: a mirror is not needed for the coloured flower experiment. (a) False (b) True
  32. 32.🛟 What should you do after handling food colour? (a) wash your hands (b) lick your fingers (c) rub your eyes (d) wipe them on walls
  33. 33.⚖️ 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 room it stands in (b) the length of the stem (c) time for colour to show (d) the amount of water
  34. 34.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
  35. 35.⚖️ 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 what we measure. (a) False (b) True
  36. 36.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a few hours of waiting (c) turmeric powder (d) a glass of water
  37. 37.💧 Which of these lets water climb up it? (a) a strip of cloth (b) a glass marble (c) a plastic ruler (d) a rubber eraser
  38. 38.⚖️ 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
  39. 39.💧 Which of these does not let water climb? (a) a sugar cube (b) a piece of foil (c) a piece of chalk (d) a cotton thread
  40. 40.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True

Answer key

  1. a grown-up
  2. False
  3. False
  4. colour climbs up it
  5. turmeric powder
  6. a flower stem
  7. a glass marble
  8. True
  9. no colour change
  10. capillary action
  11. False
  12. time for colour to show
  13. a plastic ruler
  14. yeast
  15. a paper towel
  16. True
  17. a magnet
  18. True
  19. they turn two colours
  20. we keep it the same
  21. True
  22. the kind of flower
  23. False
  24. a balloon
  25. a piece of chalk
  26. we keep it the same
  27. yeast
  28. the amount of water
  29. a battery cell
  30. food colour
  31. True
  32. wash your hands
  33. the length of the stem
  34. water climbs up it
  35. True
  36. turmeric powder
  37. a strip of cloth
  38. we keep it the same
  39. a piece of foil
  40. False

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids