Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 567 · 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 rubber eraser (b) a paper towel (c) a steel spoon (d) a plastic ruler
2. 2.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
3. 3.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a mirror (c) a battery cell (d) a white flower
4. 4.⚖️ 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 keep it the same (b) we measure it (c) we change it
5. 5.⚖️ 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
6. 6.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a white flower (c) a few hours of waiting (d) a glass of water
7. 7.💧 Which of these does not let water climb? (a) a piece of chalk (b) a flower stem (c) a paper towel (d) a rubber eraser
8. 8.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
9. 9.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through tiny stem tubes (c) it rains on them (d) through the air
10. 10.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
11. 11.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they fall off at once (c) they turn two colours (d) they all turn green
12. 12.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
13. 13.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
14. 14.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a pet (d) a toddler
15. 15.💧 Which of these does not let water climb? (a) a sugar cube (b) a strip of cloth (c) a paper towel (d) a piece of foil
16. 16.🧺 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) a magnet (d) a glass of water
17. 17.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a white flower (c) a glass of water (d) a battery cell
18. 18.⚖️ 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 keep it the same (c) we measure it
19. 19.🛟 What should you do after handling food colour? (a) wash your hands (b) rub your eyes (c) wipe them on walls (d) lick your fingers
20. 20.True or false: a piece of foil lets water climb up it. (a) False (b) True
21. 21.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a mirror (c) a few hours of waiting (d) turmeric powder
22. 22.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is what we measure. (a) False (b) True
23. 23.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
24. 24.True or false: a paper towel lets water climb up it. (a) False (b) True
25. 25.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) a paper towel (b) a sugar cube (c) a strip of cloth (d) a steel spoon
27. 27.True or false: a glass marble lets water climb up it. (a) False (b) True
28. 28.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the flower glows (c) no colour change (d) the stem turns blue
29. 29.True or false: a strip of cloth does not let water climb. (a) False (b) True
30. 30.💧 Which of these lets water climb up it? (a) a piece of chalk (b) a steel spoon (c) a glass marble (d) a plastic ruler
31. 31.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it sinks at once (c) it turns to plastic (d) colour climbs up it
32. 32.⚖️ 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 room it stands in (b) the length of the stem (c) time for colour to show
33. 33.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
34. 34.🧺 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 balloon (d) a white flower
35. 35.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
36. 36.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
37. 37.⚖️ 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 change it (c) we measure it
38. 38.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) a balloon (d) a few hours of waiting
39. 39.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is kept the same? (a) time for colour to show (b) the length of the stem (c) the amount of water
40. 40.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb

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