Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 705 · 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.⚖️ 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) False (b) True
2. 2.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) a battery cell (c) a balloon (d) turmeric powder
3. 3.🛟 What should you do after handling food colour? (a) wash your hands (b) wipe them on walls (c) lick your fingers (d) rub your eyes
4. 4.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
5. 5.🧺 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) food colour (d) turmeric powder
6. 6.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) a mirror (d) a few hours of waiting
7. 7.⚖️ 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 length of the stem (b) the amount of colour (c) the room it stands in (d) time for colour to show
8. 8.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
9. 9.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
10. 10.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) colour climbs up it (c) nothing ever happens (d) it sinks at once
11. 11.True or false: a glass marble does not let water climb. (a) False (b) True
12. 12.💧 Which of these lets water climb up it? (a) a piece of foil (b) a piece of chalk (c) a steel spoon (d) a plastic ruler
13. 13.💧 Which of these lets water climb up it? (a) a piece of foil (b) a steel spoon (c) a flower stem (d) a glass marble
14. 14.⚖️ 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) True (b) False
15. 15.⚖️ 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) False (b) True
16. 16.True or false: a cotton thread does not let water climb. (a) True (b) False
17. 17.💧 Which of these does not let water climb? (a) a paper towel (b) a flower stem (c) a strip of cloth (d) a steel spoon
18. 18.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
19. 19.💧 Which of these lets water climb up it? (a) a piece of foil (b) a glass marble (c) a plastic ruler (d) a sugar cube
20. 20.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
21. 21.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) no colour change (c) the stem turns blue (d) the petals turn red
22. 22.🧺 Which of these is needed for the coloured flower experiment? (a) a few hours of waiting (b) a mirror (c) turmeric powder (d) yeast
23. 23.⚖️ 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 room it stands in (c) the amount of water (d) the amount of colour
24. 24.True or false: a piece of foil does not let water climb. (a) False (b) True
25. 25.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the length of the stem is kept the same. (a) True (b) False
26. 26.⚖️ 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 measure it (b) we keep it the same (c) we change it
27. 27.True or false: a steel spoon lets water climb up it. (a) True (b) False
28. 28.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is what we measure. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a glass marble (b) a steel spoon (c) a paper towel (d) a rubber eraser
30. 30.🧺 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 balloon (d) a few hours of waiting
31. 31.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) turmeric powder (c) a glass of water (d) a few hours of waiting
32. 32.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
33. 33.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) a mirror (c) a battery cell (d) a magnet
34. 34.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
35. 35.⚖️ 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
36. 36.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) it rains on them (c) it is sprayed on (d) through the air
37. 37.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
38. 38.True or false: a flower stem lets water climb up it. (a) False (b) True
39. 39.True or false: a white flower is needed for the coloured flower experiment. (a) True (b) False
40. 40.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed

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