Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 376 · 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.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) yeast (c) a balloon (d) a white flower
2. 2.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a balloon (c) a few hours of waiting (d) a white flower
3. 3.⚖️ 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 measure it (b) we keep it the same (c) we change it
4. 4.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) a white flower (d) yeast
5. 5.True or false: a plastic ruler lets water climb up it. (a) True (b) False
6. 6.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
7. 7.True or false: a flower stem does not let water climb. (a) True (b) False
8. 8.⚖️ 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 keep it the same (b) we change it (c) we measure it
9. 9.💧 Which of these lets water climb up it? (a) a steel spoon (b) a plastic ruler (c) a glass marble (d) a piece of chalk
10. 10.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
11. 11.⚖️ 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 kind of flower (c) the room it stands in (d) the length of the stem
12. 12.🔮 What would change if the flower stood in plain water? (a) the stem turns blue (b) no colour change (c) the petals turn red (d) the flower glows
13. 13.🔍 Which is the odd one out? (a) a cotton thread (b) a flower stem (c) a sugar cube (d) a steel spoon
14. 14.⚖️ 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 kept the same. (a) False (b) True
15. 15.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
16. 16.True or false: a piece of foil does not let water climb. (a) False (b) True
17. 17.📘 What is it called when water climbs up thin tubes or paper by itself? (a) capillary action (b) evaporation (c) magnetism (d) melting
18. 18.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a white flower (c) a magnet (d) a glass of water
19. 19.⚖️ 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 keep it the same (b) we change it (c) we measure it
20. 20.🛟 What should you do after handling food colour? (a) wipe them on walls (b) wash your hands (c) rub your eyes (d) lick your fingers
21. 21.🔍 Which is the odd one out? (a) a flower stem (b) a strip of cloth (c) a plastic ruler (d) a paper towel
22. 22.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
23. 23.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a glass of water (c) a magnet (d) a balloon
24. 24.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) yeast (c) a battery cell (d) a balloon
25. 25.True or false: a strip of cloth does not let water climb. (a) True (b) False
26. 26.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
27. 27.💧 Which of these lets water climb up it? (a) a glass marble (b) a flower stem (c) a plastic ruler (d) a steel spoon
28. 28.🧺 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
29. 29.💧 Which of these does not let water climb? (a) a piece of chalk (b) a steel spoon (c) a cotton thread (d) a paper towel
30. 30.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) turmeric powder (d) a few hours of waiting
31. 31.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
32. 32.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
33. 33.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True
34. 34.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of foil (c) a steel spoon (d) a cotton thread
36. 36.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a balloon (c) a few hours of waiting (d) food colour
37. 37.💧 Which of these does not let water climb? (a) a flower stem (b) a plastic ruler (c) a piece of chalk (d) a strip of cloth
38. 38.⚖️ 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 keep it the same (c) we change it
39. 39.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
40. 40.True or false: a sugar cube lets water climb up it. (a) False (b) True

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