Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 151 · 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 not needed for the coloured flower experiment? (a) food colour (b) a battery cell (c) a few hours of waiting (d) a white flower
2. 2.🛟 What should you do after handling food colour? (a) rub your eyes (b) wash your hands (c) lick your fingers (d) wipe them on walls
3. 3.🔍 Which is the odd one out? (a) a paper towel (b) a cotton thread (c) a piece of foil (d) a sugar cube
4. 4.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
5. 5.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a glass of water (c) yeast (d) a balloon
6. 6.🛟 Who should trim the flower stem? (a) a pet (b) anyone, without looking (c) a toddler (d) a grown-up
7. 7.True or false: a sugar cube lets water climb up it. (a) True (b) False
8. 8.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) yeast (c) a balloon (d) a battery cell
9. 9.💧 Which of these does not let water climb? (a) a flower stem (b) a strip of cloth (c) a glass marble (d) a piece of chalk
10. 10.True or false: a cotton thread does not let water climb. (a) True (b) False
11. 11.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
12. 12.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the flower glows (c) the stem turns blue (d) no colour change
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
16. 16.True or false: a steel spoon does not let water climb. (a) True (b) False
17. 17.True or false: turmeric powder is needed for the coloured flower experiment. (a) False (b) True
18. 18.💧 Which of these lets water climb up it? (a) a piece of foil (b) a glass marble (c) a cotton thread (d) a plastic ruler
19. 19.🔍 Which is the odd one out? (a) a piece of foil (b) a plastic ruler (c) a strip of cloth (d) a rubber eraser
20. 20.True or false: a flower stem lets water climb up it. (a) False (b) True
21. 21.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) petals like colour (c) petals lose water to air (d) the stem is hot
22. 22.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
23. 23.🔍 Which is the odd one out? (a) a strip of cloth (b) a flower stem (c) a sugar cube (d) a rubber eraser
24. 24.🔍 Which is the odd one out? (a) a piece of chalk (b) a plastic ruler (c) a glass marble (d) a piece of foil
25. 25.True or false: a flower stem does not let water climb. (a) True (b) False
26. 26.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
27. 27.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
28. 28.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a flower stem (b) a glass marble (c) a sugar cube (d) a cotton thread
30. 30.⚖️ 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
31. 31.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True
32. 32.True or false: a glass marble does not let water climb. (a) True (b) False
33. 33.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) a white flower (c) food colour (d) a few hours of waiting
34. 34.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is what we measure. (a) True (b) False
35. 35.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
36. 36.True or false: a piece of chalk does not let water climb. (a) True (b) False
37. 37.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) turmeric powder (b) a glass of water (c) a few hours of waiting (d) a white flower
38. 38.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a magnet (c) a white flower (d) a glass of water
39. 39.🔍 Which is the odd one out? (a) a strip of cloth (b) a cotton thread (c) a flower stem (d) a steel spoon
40. 40.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is the one thing we change. (a) True (b) False

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