Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 632 · 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.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
2. 2.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) yeast (c) a white flower (d) a magnet
3. 3.🛟 What should you do after handling food colour? (a) wash your hands (b) wipe them on walls (c) lick your fingers (d) rub your eyes
4. 4.True or false: a piece of chalk lets water climb up it. (a) False (b) True
5. 5.⚖️ 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 change it (c) we keep it the same
6. 6.💧 Which of these lets water climb up it? (a) a paper towel (b) a piece of foil (c) a plastic ruler (d) a steel spoon
7. 7.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
8. 8.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
9. 9.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) it sinks at once (c) nothing ever happens (d) colour climbs up it
10. 10.💧 Which of these does not let water climb? (a) a glass marble (b) a flower stem (c) a cotton thread (d) a sugar cube
11. 11.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
12. 12.⚖️ 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
13. 13.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a magnet (c) a few hours of waiting (d) a glass of water
14. 14.True or false: a cotton thread lets water climb up it. (a) False (b) True
15. 15.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
16. 16.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
17. 17.True or false: a piece of chalk does not let water climb. (a) True (b) False
18. 18.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
19. 19.⚖️ 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 change it (b) we keep it the same (c) we measure it
20. 20.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
21. 21.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a pet (d) a grown-up
22. 22.🔍 Which is the odd one out? (a) a piece of foil (b) a glass marble (c) a strip of cloth (d) a plastic ruler
23. 23.True or false: a paper towel does not let water climb. (a) False (b) True
24. 24.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a battery cell (c) a white flower (d) food colour
25. 25.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) food colour (c) a balloon (d) a white flower
26. 26.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
27. 27.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
28. 28.🔮 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 turn two colours (c) they fall off at once (d) they all turn green
29. 29.⚖️ 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 measure it (c) we change it
30. 30.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a balloon (c) a few hours of waiting (d) a magnet
31. 31.True or false: a flower stem lets water climb up it. (a) True (b) False
32. 32.⚖️ 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) False (b) True
33. 33.💧 Which of these does not let water climb? (a) a paper towel (b) a piece of chalk (c) a rubber eraser (d) a cotton thread
34. 34.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a white flower (c) a few hours of waiting (d) a battery cell
35. 35.⚖️ 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
36. 36.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
37. 37.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) melting (c) magnetism (d) capillary action
38. 38.🧺 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) a magnet (d) a glass of water
39. 39.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a magnet (c) a glass of water (d) turmeric powder
40. 40.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False

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