Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 344 · 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 is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a white flower (c) yeast (d) food colour
2. 2.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a paper towel (d) a plastic ruler
3. 3.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
4. 4.True or false: a paper towel does not let water climb. (a) False (b) True
5. 5.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) a paper towel (b) a glass marble (c) a cotton thread (d) a piece of chalk
7. 7.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a grown-up (d) a pet
8. 8.💧 Which of these lets water climb up it? (a) a piece of foil (b) a glass marble (c) a steel spoon (d) a piece of chalk
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 is needed for the coloured flower experiment? (a) a magnet (b) a battery cell (c) a balloon (d) a few hours of waiting
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 fall off at once (b) they turn two colours (c) they all turn green (d) they stay white
12. 12.⚖️ 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
13. 13.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a balloon (c) a glass of water (d) a magnet
14. 14.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
15. 15.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
16. 16.⚖️ 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
17. 17.🧺 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) a white flower (d) a mirror
18. 18.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True
19. 19.💧 Which of these does not let water climb? (a) a cotton thread (b) a flower stem (c) a piece of chalk (d) a glass marble
20. 20.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
21. 21.True or false: a plastic ruler lets water climb up it. (a) False (b) True
22. 22.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
23. 23.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) turmeric powder (d) a white flower
24. 24.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) a balloon (d) a white flower
25. 25.🔮 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
26. 26.True or false: a strip of cloth lets water climb up it. (a) True (b) False
27. 27.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
28. 28.💧 Which of these does not let water climb? (a) a sugar cube (b) a flower stem (c) a cotton thread (d) a rubber eraser
29. 29.🔍 Which is the odd one out? (a) a steel spoon (b) a glass marble (c) a rubber eraser (d) a flower stem
30. 30.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) capillary action (c) magnetism (d) evaporation
31. 31.🛟 What should you do after handling food colour? (a) rub your eyes (b) lick your fingers (c) wipe them on walls (d) wash your hands
32. 32.🔍 Which is the odd one out? (a) a cotton thread (b) a steel spoon (c) a rubber eraser (d) a plastic ruler
33. 33.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is what we measure. (a) False (b) True
34. 34.True or false: a piece of chalk does not let water climb. (a) True (b) False
35. 35.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
36. 36.💧 Which of these lets water climb up it? (a) a piece of foil (b) a glass marble (c) a steel spoon (d) a cotton thread
37. 37.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a few hours of waiting (c) food colour (d) a mirror
38. 38.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a steel spoon (c) a piece of foil (d) a strip of cloth
39. 39.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a white flower (c) turmeric powder (d) a glass of water
40. 40.⚖️ 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) False (b) True

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