Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 654 · 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.True or false: a balloon is needed for the coloured flower experiment. (a) False (b) True
2. 2.💧 Which of these lets water climb up it? (a) a piece of foil (b) a plastic ruler (c) a steel spoon (d) a flower stem
3. 3.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
4. 4.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) turmeric powder (c) a white flower (d) a battery cell
5. 5.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
6. 6.💧 Which of these lets water climb up it? (a) a sugar cube (b) a glass marble (c) a rubber eraser (d) a piece of foil
7. 7.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) yeast (c) a few hours of waiting (d) a white flower
8. 8.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is kept the same. (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: time for colour to show is what we measure. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) a sugar cube (b) a flower stem (c) a piece of chalk (d) a glass marble
11. 11.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a grown-up (d) a pet
12. 12.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
13. 13.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) a glass of water (c) a few hours of waiting (d) a white flower
14. 14.🛟 What should you do after handling food colour? (a) wipe them on walls (b) rub your eyes (c) lick your fingers (d) wash your hands
15. 15.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it turns to plastic (c) colour climbs up it (d) it sinks at once
16. 16.⚖️ 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 room it stands in (b) the amount of colour (c) time for colour to show (d) the length of the stem
17. 17.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
18. 18.⚖️ 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 change it (c) we keep it the same
19. 19.💧 Which of these does not let water climb? (a) a cotton thread (b) a paper towel (c) a plastic ruler (d) a piece of chalk
20. 20.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) it rains on them (c) through the air (d) through tiny stem tubes
21. 21.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
22. 22.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) a magnet (c) a battery cell (d) a balloon
23. 23.⚖️ 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
24. 24.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a balloon (c) turmeric powder (d) a few hours of waiting
25. 25.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) no colour change (c) the flower glows (d) the stem turns blue
26. 26.💧 Which of these does not let water climb? (a) a sugar cube (b) a flower stem (c) a steel spoon (d) a cotton thread
27. 27.True or false: a paper towel lets water climb up it. (a) True (b) False
28. 28.💧 Which of these lets water climb up it? (a) a steel spoon (b) a piece of foil (c) a plastic ruler (d) a paper towel
29. 29.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is kept the same. (a) True (b) False
30. 30.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a battery cell (c) food colour (d) a glass of water
31. 31.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
32. 32.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is kept the same? (a) the room it stands in (b) the length of the stem (c) time for colour to show
33. 33.🔍 Which is the odd one out? (a) a rubber eraser (b) a piece of foil (c) a sugar cube (d) a glass marble
34. 34.🧺 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) turmeric powder
35. 35.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
36. 36.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
37. 37.True or false: a cotton thread does not let water climb. (a) True (b) False
38. 38.💧 Which of these does not let water climb? (a) a paper towel (b) a sugar cube (c) a flower stem (d) a glass marble
39. 39.True or false: a strip of cloth lets water climb up it. (a) True (b) False
40. 40.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a glass of water (c) turmeric powder (d) a battery cell

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