Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 775 · 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 lets water climb up it? (a) a sugar cube (b) a rubber eraser (c) a piece of foil (d) a plastic ruler
2. 2.True or false: a plastic ruler lets water climb up it. (a) False (b) True
3. 3.⚖️ 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
4. 4.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
5. 5.💧 Which of these lets water climb up it? (a) a steel spoon (b) a glass marble (c) a plastic ruler (d) a cotton thread
6. 6.💧 Which of these does not let water climb? (a) a cotton thread (b) a flower stem (c) a piece of foil (d) a paper towel
7. 7.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a mirror (c) a white flower (d) a glass of water
8. 8.🔍 Which is the odd one out? (a) a sugar cube (b) a rubber eraser (c) a paper towel (d) a cotton thread
9. 9.🔍 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
10. 10.🛟 What should you do after handling food colour? (a) rub your eyes (b) wash your hands (c) wipe them on walls (d) lick your fingers
11. 11.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) yeast (d) a white flower
12. 12.True or false: a rubber eraser lets water climb up it. (a) False (b) True
13. 13.⚖️ 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) the length of the stem (d) the kind of flower
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 change it (b) we keep it the same (c) we measure it
15. 15.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
16. 16.🔍 Which is the odd one out? (a) a plastic ruler (b) a rubber eraser (c) a glass marble (d) a paper towel
17. 17.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a few hours of waiting (d) a battery cell
18. 18.🧺 Which of these is not needed for the coloured flower experiment? (a) a balloon (b) a white flower (c) a few hours of waiting (d) a glass of water
19. 19.⚖️ 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 amount of water (b) time for colour to show (c) the length of the stem
20. 20.🛟 Who should trim the flower stem? (a) a pet (b) a toddler (c) anyone, without looking (d) a grown-up
21. 21.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
22. 22.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
23. 23.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) turmeric powder (c) a white flower (d) a few hours of waiting
24. 24.🧺 Which of these is not needed for the coloured flower experiment? (a) yeast (b) a white flower (c) food colour (d) a glass of water
25. 25.🔍 Which is the odd one out? (a) a cotton thread (b) a piece of foil (c) a glass marble (d) a steel spoon
26. 26.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) a battery cell (c) a magnet (d) a balloon
27. 27.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
28. 28.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) nothing ever happens (c) it sinks at once (d) colour climbs up it
29. 29.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the room it stands in”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through the air (c) it rains on them (d) through tiny stem tubes
31. 31.⚖️ 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) True (b) False
32. 32.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) a white flower (c) a few hours of waiting (d) a glass of water
33. 33.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) no colour change (c) the petals turn red (d) the stem turns blue
34. 34.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals are magnetic (c) petals lose water to air (d) petals like colour
35. 35.💧 Which of these does not let water climb? (a) a strip of cloth (b) a plastic ruler (c) a flower stem (d) a cotton thread
36. 36.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) turmeric powder (c) a few hours of waiting (d) a white flower
37. 37.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is the one thing we change. (a) True (b) False
38. 38.True or false: a steel spoon lets water climb up it. (a) False (b) True
39. 39.True or false: a piece of foil lets water climb up it. (a) True (b) False
40. 40.💧 Which of these does not let water climb? (a) a steel spoon (b) a flower stem (c) a paper towel (d) a cotton thread

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