Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 786 · 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.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a white flower (c) a magnet (d) a few hours of waiting
2. 2.🔍 Which is the odd one out? (a) a rubber eraser (b) a strip of cloth (c) a steel spoon (d) a plastic ruler
3. 3.🛟 What should you do after handling food colour? (a) lick your fingers (b) wipe them on walls (c) wash your hands (d) rub your eyes
4. 4.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
5. 5.🔍 Which is the odd one out? (a) a cotton thread (b) a flower stem (c) a glass marble (d) a sugar cube
6. 6.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through the air (c) it rains on them (d) through tiny stem tubes
7. 7.💧 Which of these does not let water climb? (a) a cotton thread (b) a piece of foil (c) a paper towel (d) a sugar cube
8. 8.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
9. 9.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
10. 10.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
11. 11.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is what we measure? (a) time for colour to show (b) the length of the stem (c) the kind of flower (d) the room it stands in
12. 12.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
13. 13.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
14. 14.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a strip of cloth (c) a steel spoon (d) a glass marble
15. 15.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a magnet (c) a balloon (d) a glass of water
16. 16.🔮 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
17. 17.💧 Dip a flower stem 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 “the kind of flower”? (a) we measure it (b) we change it (c) we keep it the same
19. 19.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
20. 20.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
21. 21.🔮 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
22. 22.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
23. 23.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a glass marble (c) a rubber eraser (d) a cotton thread
24. 24.🔍 Which is the odd one out? (a) a sugar cube (b) a cotton thread (c) a piece of chalk (d) a rubber eraser
25. 25.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is the one thing we change. (a) True (b) False
26. 26.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
27. 27.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) True (b) False
28. 28.True or false: a mirror is needed for the coloured flower experiment. (a) False (b) True
29. 29.🧺 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
30. 30.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
31. 31.💧 Which of these lets water climb up it? (a) a paper towel (b) a plastic ruler (c) a glass marble (d) a piece of foil
32. 32.True or false: a cotton thread does not let water climb. (a) False (b) True
33. 33.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
34. 34.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a battery cell (d) a glass of water
35. 35.True or false: a piece of foil does not let water climb. (a) False (b) True
36. 36.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False
37. 37.True or false: a sugar cube does not let water climb. (a) True (b) False
38. 38.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
39. 39.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) turmeric powder (c) a battery cell (d) a balloon
40. 40.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the petals turn bluish (c) the water turns green (d) the stem turns to ice

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