Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 243 · 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 rubber eraser (b) a paper towel (c) a sugar cube (d) a strip of cloth
2. 2.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it sinks at once (c) colour climbs up it (d) it turns to plastic
3. 3.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) food colour (c) a glass of water (d) yeast
4. 4.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
5. 5.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
6. 6.True or false: a piece of foil lets water climb up it. (a) False (b) True
7. 7.⚖️ 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) True (b) False
8. 8.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
9. 9.🛟 What should you do after handling food colour? (a) wipe them on walls (b) lick your fingers (c) wash your hands (d) rub your eyes
10. 10.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the flower floats away (c) the water turns green (d) the petals turn bluish
11. 11.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
12. 12.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the room it stands in”? (a) we measure it (b) we change it (c) we keep it the same
13. 13.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a magnet (c) a white flower (d) a few hours of waiting
14. 14.⚖️ 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 change it (b) we keep it the same (c) we measure it
15. 15.🛟 Who should trim the flower stem? (a) a grown-up (b) a toddler (c) a pet (d) anyone, without looking
16. 16.🔍 Which is the odd one out? (a) a steel spoon (b) a flower stem (c) a cotton thread (d) a paper towel
17. 17.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
18. 18.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
19. 19.💧 Which of these does not let water climb? (a) a piece of chalk (b) a plastic ruler (c) a sugar cube (d) a flower stem
20. 20.🔍 Which is the odd one out? (a) a cotton thread (b) a glass marble (c) a steel spoon (d) a piece of foil
21. 21.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) evaporation (c) magnetism (d) capillary action
22. 22.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
23. 23.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
24. 24.💧 Which of these does not let water climb? (a) a cotton thread (b) a steel spoon (c) a sugar cube (d) a strip of cloth
25. 25.⚖️ 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
26. 26.🔍 Which is the odd one out? (a) a steel spoon (b) a rubber eraser (c) a glass marble (d) a flower stem
27. 27.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
28. 28.🔍 Which is the odd one out? (a) a flower stem (b) a strip of cloth (c) a cotton thread (d) a glass marble
29. 29.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
30. 30.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) turmeric powder (c) a mirror (d) a few hours of waiting
31. 31.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) yeast (c) a battery cell (d) a glass of water
32. 32.⚖️ 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
33. 33.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is kept the same. (a) False (b) True
34. 34.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) a white flower (c) a glass of water (d) a few hours of waiting
35. 35.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) a sugar cube (b) a rubber eraser (c) a steel spoon (d) a plastic ruler
37. 37.⚖️ 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) True (b) False
38. 38.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
39. 39.💧 Which of these lets water climb up it? (a) a steel spoon (b) a piece of foil (c) a plastic ruler (d) a sugar cube
40. 40.💧 Which of these lets water climb up it? (a) a piece of foil (b) a glass marble (c) a plastic ruler (d) a cotton thread

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