Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 884 · 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 is the odd one out? (a) a glass marble (b) a flower stem (c) a rubber eraser (d) a steel spoon
2. 2.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
3. 3.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
4. 4.🔍 Which is the odd one out? (a) a cotton thread (b) a glass marble (c) a piece of foil (d) a rubber eraser
5. 5.True or false: a flower stem does not let water climb. (a) True (b) False
6. 6.⚖️ 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 kept the same. (a) True (b) False
7. 7.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
8. 8.True or false: a paper towel lets water climb up it. (a) True (b) False
9. 9.🔮 What would change if the flower stood in plain water? (a) the stem turns blue (b) the petals turn red (c) no colour change (d) the flower glows
10. 10.True or false: a cotton thread lets water climb up it. (a) True (b) False
11. 11.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) it turns to plastic (c) nothing ever happens (d) colour climbs up it
12. 12.📘 What is it called when water climbs up thin tubes or paper by itself? (a) capillary action (b) magnetism (c) melting (d) evaporation
13. 13.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
14. 14.🔍 Which is the odd one out? (a) a piece of foil (b) a sugar cube (c) a strip of cloth (d) a flower stem
15. 15.💧 Which of these lets water climb up it? (a) a steel spoon (b) a glass marble (c) a rubber eraser (d) a strip of cloth
16. 16.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
17. 17.True or false: a paper towel does not let water climb. (a) False (b) True
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 colour”? (a) we change it (b) we measure it (c) we keep it the same
19. 19.🛟 Who should trim the flower stem? (a) a pet (b) anyone, without looking (c) a grown-up (d) a toddler
20. 20.True or false: a flower stem lets water climb up it. (a) False (b) True
21. 21.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) a glass of water (c) food colour (d) a few hours of waiting
22. 22.🔍 Which is the odd one out? (a) a sugar cube (b) a cotton thread (c) a strip of cloth (d) a plastic ruler
23. 23.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
24. 24.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a mirror (c) turmeric powder (d) a white flower
25. 25.🛟 What should you do after handling food colour? (a) wash your hands (b) lick your fingers (c) rub your eyes (d) wipe them on walls
26. 26.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
27. 27.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
28. 28.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
29. 29.💧 Which of these lets water climb up it? (a) a paper towel (b) a piece of foil (c) a glass marble (d) a plastic ruler
30. 30.True or false: a piece of chalk does not let water climb. (a) False (b) True
31. 31.⚖️ 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
32. 32.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
33. 33.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a steel spoon (c) a cotton thread (d) a piece of foil
34. 34.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) True (b) False
35. 35.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) it rains on them (c) through tiny stem tubes (d) through the air
36. 36.🔍 Which is the odd one out? (a) a paper towel (b) a glass marble (c) a piece of foil (d) a plastic ruler
37. 37.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) a magnet (d) a few hours of waiting
38. 38.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
39. 39.💧 Which of these does not let water climb? (a) a cotton thread (b) a rubber eraser (c) a paper towel (d) a sugar cube
40. 40.⚖️ 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

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