Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 818 · 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.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it sinks at once (c) nothing ever happens (d) it turns to plastic
2. 2.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a magnet (c) a white flower (d) a few hours of waiting
3. 3.🛟 Who should trim the flower stem? (a) a pet (b) anyone, without looking (c) a toddler (d) a grown-up
4. 4.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
5. 5.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a battery cell (c) food colour (d) a few hours of waiting
6. 6.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) a glass marble (b) a cotton thread (c) a piece of foil (d) a plastic ruler
8. 8.True or false: a cotton thread does not let water climb. (a) False (b) True
9. 9.💧 Which of these lets water climb up it? (a) a steel spoon (b) a rubber eraser (c) a strip of cloth (d) a glass marble
10. 10.🧺 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 balloon
11. 11.🧺 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) yeast (d) food colour
12. 12.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wipe them on walls (d) wash your hands
13. 13.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a few hours of waiting (c) turmeric powder (d) a glass of water
14. 14.⚖️ 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 what we measure. (a) True (b) False
15. 15.🔍 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 stem turns to ice (d) the water turns green
16. 16.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the flower glows (c) the petals turn red (d) the stem turns blue
17. 17.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is what we measure. (a) False (b) True
18. 18.⚖️ 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 the one thing we change. (a) False (b) True
19. 19.⚖️ 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) False (b) True
20. 20.True or false: a rubber eraser does not let water climb. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) a piece of chalk (b) a sugar cube (c) a glass marble (d) a paper towel
22. 22.🔍 Which is the odd one out? (a) a flower stem (b) a steel spoon (c) a plastic ruler (d) a glass marble
23. 23.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
24. 24.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) turmeric powder (c) a balloon (d) a glass of water
25. 25.💧 Which of these lets water climb up it? (a) a piece of foil (b) a flower stem (c) a plastic ruler (d) a rubber eraser
26. 26.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of colour”? (a) we keep it the same (b) we measure it (c) we change it
27. 27.True or false: a rubber eraser lets water climb up it. (a) False (b) True
28. 28.⚖️ 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 length of the stem (d) the amount of water
29. 29.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a battery cell (c) a white flower (d) a mirror
30. 30.⚖️ 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
31. 31.💧 Which of these lets water climb up it? (a) a glass marble (b) a piece of foil (c) a cotton thread (d) a rubber eraser
32. 32.True or false: a steel spoon lets water climb up it. (a) True (b) False
33. 33.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
34. 34.⚖️ 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
35. 35.⚖️ 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) False (b) True
36. 36.🧺 Which of these is not needed for the coloured flower experiment? (a) a battery cell (b) a glass of water (c) a white flower (d) a few hours of waiting
37. 37.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a paper towel (d) a piece of foil
38. 38.🔍 Which is the odd one out? (a) a steel spoon (b) a rubber eraser (c) a paper towel (d) a piece of foil
39. 39.🔍 Which is the odd one out? (a) a paper towel (b) a sugar cube (c) a strip of cloth (d) a rubber eraser
40. 40.⚖️ 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

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