Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 906 · 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.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
2. 2.⚖️ 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) the length of the stem (c) time for colour to show
3. 3.💧 Which of these lets water climb up it? (a) a glass marble (b) a rubber eraser (c) a piece of foil (d) a paper towel
4. 4.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
5. 5.💧 Which of these lets water climb up it? (a) a piece of chalk (b) a plastic ruler (c) a steel spoon (d) a piece of foil
6. 6.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a mirror (c) a white flower (d) a balloon
7. 7.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of foil (c) a steel spoon (d) a piece of chalk
9. 9.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the flower floats away (c) the water turns green (d) the stem turns to ice
10. 10.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) a glass of water (c) a white flower (d) food colour
11. 11.True or false: a cotton thread does not let water climb. (a) True (b) False
12. 12.🧺 Which of these is not needed for the coloured flower experiment? (a) yeast (b) a white flower (c) a glass of water (d) a few hours of waiting
13. 13.💧 Which of these does not let water climb? (a) a strip of cloth (b) a sugar cube (c) a glass marble (d) a paper towel
14. 14.True or false: a paper towel does not let water climb. (a) True (b) False
15. 15.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
16. 16.🛟 What should you do after handling food colour? (a) wash your hands (b) lick your fingers (c) wipe them on walls (d) rub your eyes
17. 17.⚖️ 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 room it stands in (d) the length of the stem
18. 18.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
19. 19.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) turmeric powder (c) a mirror (d) a glass of water
20. 20.💧 Which of these does not let water climb? (a) a rubber eraser (b) a cotton thread (c) a paper towel (d) a flower stem
21. 21.True or false: a sugar cube does not let water climb. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) a strip of cloth (b) a plastic ruler (c) a flower stem (d) a paper towel
23. 23.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
24. 24.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
25. 25.⚖️ 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
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 keep it the same (b) we measure it (c) we change it
27. 27.🌼 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
28. 28.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) a sugar cube (b) a flower stem (c) a strip of cloth (d) a glass marble
30. 30.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) a battery cell (d) a white flower
31. 31.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) yeast (c) a magnet (d) a mirror
32. 32.⚖️ 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 the one thing we change. (a) True (b) False
33. 33.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the flower glows (c) the stem turns blue (d) no colour change
34. 34.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
35. 35.True or false: a magnet is not needed for the coloured flower experiment. (a) False (b) True
36. 36.⚖️ 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) False (b) True
37. 37.🔮 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
38. 38.⚖️ 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 measure it (c) we keep it the same
39. 39.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (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 “the length of the stem”? (a) we keep it the same (b) we change it (c) we measure it

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