Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 1 · 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) yeast (b) a white flower (c) a battery cell (d) a mirror
2. 2.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
3. 3.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it sinks at once (c) it turns to plastic (d) nothing ever happens
4. 4.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
5. 5.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) yeast (c) a white flower (d) a few hours of waiting
6. 6.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a battery cell (c) a white flower (d) food colour
7. 7.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) through the air (c) it rains on them (d) it is sprayed on
8. 8.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) yeast (c) a glass of water (d) a balloon
9. 9.True or false: turmeric powder is needed for the coloured flower experiment. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) a flower stem (b) a plastic ruler (c) a rubber eraser (d) a steel spoon
11. 11.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a toddler (d) a pet
12. 12.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the stem turns to ice (c) the water turns green (d) the flower floats away
13. 13.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) the stem is hot (c) petals are magnetic (d) petals lose water to air
14. 14.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
15. 15.⚖️ 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 amount of colour (b) the room it stands in (c) the length of the stem (d) time for colour to show
16. 16.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
17. 17.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a steel spoon (c) a strip of cloth (d) a plastic ruler
18. 18.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) a glass of water (c) a few hours of waiting (d) a white flower
19. 19.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a flower stem (c) a rubber eraser (d) a steel spoon
20. 20.💧 Which of these does not let water climb? (a) a piece of chalk (b) a sugar cube (c) a glass marble (d) a strip of cloth
21. 21.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
22. 22.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
23. 23.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the petals turn red (c) no colour change (d) the stem turns blue
24. 24.⚖️ 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 measure it (b) we keep it the same (c) we change it
25. 25.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a few hours of waiting (c) a white flower (d) a magnet
26. 26.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False
27. 27.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) True (b) False
28. 28.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
29. 29.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
30. 30.💧 Which of these lets water climb up it? (a) a piece of chalk (b) a rubber eraser (c) a plastic ruler (d) a glass marble
31. 31.True or false: a glass of water is needed for the coloured flower experiment. (a) True (b) False
32. 32.True or false: a sugar cube does not let water climb. (a) True (b) False
33. 33.True or false: a strip of cloth does not let water climb. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a plastic ruler (b) a sugar cube (c) a piece of foil (d) a glass marble
35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a glass of water (d) a battery cell
36. 36.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
37. 37.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) food colour (c) a mirror (d) a few hours of waiting
38. 38.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
39. 39.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a balloon (c) a magnet (d) a few hours of waiting
40. 40.⚖️ 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

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