Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 924 · 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 is the odd one out? (a) a plastic ruler (b) a sugar cube (c) a piece of chalk (d) a strip of cloth
2. 2.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the flower glows (c) no colour change (d) the stem turns blue
3. 3.True or false: a piece of foil does not let water climb. (a) True (b) False
4. 4.⚖️ 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
5. 5.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) food colour (c) turmeric powder (d) a glass of water
6. 6.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a white flower (c) yeast (d) a glass of water
7. 7.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
8. 8.🔍 Which is the odd one out? (a) a cotton thread (b) a paper towel (c) a strip of cloth (d) a glass marble
9. 9.💧 Which of these does not let water climb? (a) a glass marble (b) a paper towel (c) a sugar cube (d) a strip of cloth
10. 10.🧺 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) a magnet
11. 11.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) food colour (c) a white flower (d) a few hours of waiting
12. 12.🛟 Who should trim the flower stem? (a) a grown-up (b) a pet (c) anyone, without looking (d) a toddler
13. 13.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
14. 14.⚖️ 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
15. 15.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
16. 16.🔮 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
17. 17.💧 Which of these does not let water climb? (a) a cotton thread (b) a rubber eraser (c) a paper towel (d) a piece of chalk
18. 18.🧺 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 glass of water (d) yeast
19. 19.⚖️ 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 kind of flower (b) the amount of colour (c) the length of the stem (d) time for colour to show
20. 20.True or false: a flower stem lets water climb up it. (a) False (b) True
21. 21.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
22. 22.⚖️ 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 what we measure. (a) True (b) False
23. 23.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
24. 24.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
25. 25.🧺 Which of these is not needed for the coloured flower experiment? (a) a balloon (b) food colour (c) a white flower (d) a glass of water
26. 26.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
27. 27.True or false: a sugar cube does not let water climb. (a) True (b) False
28. 28.True or false: a paper towel lets water climb up it. (a) True (b) False
29. 29.💧 Which of these does not let water climb? (a) a paper towel (b) a piece of chalk (c) a flower stem (d) a plastic ruler
30. 30.💧 Which of these does not let water climb? (a) a piece of chalk (b) a steel spoon (c) a strip of cloth (d) a paper towel
31. 31.True or false: yeast is not needed for the coloured flower experiment. (a) False (b) True
32. 32.🛟 What should you do after handling food colour? (a) rub your eyes (b) wipe them on walls (c) lick your fingers (d) wash your hands
33. 33.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a white flower (c) a balloon (d) a mirror
34. 34.🧺 Which of these is needed for the coloured flower experiment? (a) a few hours of waiting (b) turmeric powder (c) a battery cell (d) a balloon
35. 35.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of colour”? (a) we change it (b) we keep it the same (c) we measure it
36. 36.True or false: food colour is needed for the coloured flower experiment. (a) True (b) False
37. 37.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
38. 38.True or false: a glass marble does not let water climb. (a) True (b) False
39. 39.True or false: a piece of chalk does not let water climb. (a) True (b) False
40. 40.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True

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