Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 616 · 40 questions

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.

1. 1.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the water turns green (c) the petals turn bluish (d) the stem turns to ice
2. 2.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) a rubber eraser (b) a flower stem (c) a glass marble (d) a piece of foil
4. 4.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) nothing ever happens (c) colour climbs up it (d) it sinks at once
5. 5.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
6. 6.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) food colour (c) a white flower (d) a glass of water
7. 7.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a mirror (c) a white flower (d) a few hours of waiting
8. 8.True or false: a magnet is needed for the coloured flower experiment. (a) False (b) True
9. 9.⚖️ 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
10. 10.💧 Which of these does not let water climb? (a) a rubber eraser (b) a piece of chalk (c) a paper towel (d) a cotton thread
11. 11.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
12. 12.True or false: a paper towel lets water climb up it. (a) False (b) True
13. 13.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) yeast (c) a glass of water (d) a white flower
14. 14.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is what we measure. (a) True (b) False
15. 15.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a magnet (c) a glass of water (d) turmeric powder
16. 16.True or false: a piece of foil does not let water climb. (a) False (b) True
17. 17.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
18. 18.🔮 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 turn two colours (c) they all turn green (d) they fall off at once
19. 19.🔍 Which is the odd one out? (a) a flower stem (b) a piece of foil (c) a paper towel (d) a piece of chalk
20. 20.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
21. 21.⚖️ 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) True (b) False
22. 22.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) yeast (c) a glass of water (d) a white flower
23. 23.🔍 Which is the odd one out? (a) a strip of cloth (b) a paper towel (c) a steel spoon (d) a sugar cube
24. 24.💧 Which of these lets water climb up it? (a) a strip of cloth (b) a rubber eraser (c) a piece of foil (d) a steel spoon
25. 25.🔍 Which is the odd one out? (a) a piece of foil (b) a glass marble (c) a sugar cube (d) a steel spoon
26. 26.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) it is sprayed on (c) through the air (d) it rains on them
27. 27.True or false: food colour is needed for the coloured flower experiment. (a) False (b) True
28. 28.True or false: a paper towel does not let water climb. (a) True (b) False
29. 29.💧 Which of these does not let water climb? (a) a cotton thread (b) a strip of cloth (c) a paper towel (d) a steel spoon
30. 30.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a paper towel (c) a glass marble (d) a piece of foil
31. 31.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
32. 32.True or false: a piece of foil lets water climb up it. (a) False (b) True
33. 33.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
34. 34.💧 Which of these lets water climb up it? (a) a steel spoon (b) a glass marble (c) a sugar cube (d) a plastic ruler
35. 35.🔍 Which is the odd one out? (a) a piece of foil (b) a plastic ruler (c) a steel spoon (d) a piece of chalk
36. 36.⚖️ 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 keep it the same (c) we measure it
37. 37.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
38. 38.🧺 Which of these is not needed for the coloured flower experiment? (a) a balloon (b) a white flower (c) a glass of water (d) a few hours of waiting
39. 39.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a balloon (c) a mirror (d) a white flower
40. 40.🧺 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) a battery cell (d) a glass of water

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