Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 971 · 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 turmeric powder for the coloured flower experiment? (a) needed (b) not needed
2. 2.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a glass of water (d) yeast
3. 3.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) turmeric powder (c) food colour (d) a few hours of waiting
4. 4.🌼 How does coloured water reach the petals? (a) through the air (b) through tiny stem tubes (c) it is sprayed on (d) it rains on them
5. 5.🛟 What should you do after handling food colour? (a) rub your eyes (b) wash your hands (c) lick your fingers (d) wipe them on walls
6. 6.⚖️ 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 measure it (c) we keep it the same
7. 7.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a glass of water (c) a magnet (d) a white flower
8. 8.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
9. 9.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they turn two colours (b) they all turn green (c) they fall off at once (d) they stay white
10. 10.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is the one thing we change? (a) the kind of flower (b) the length of the stem (c) the amount of water (d) time for colour to show
11. 11.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) evaporation (c) melting (d) capillary action
12. 12.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
13. 13.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the flower floats away (c) the stem turns to ice (d) the petals turn bluish
14. 14.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is kept the same. (a) False (b) True
15. 15.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
16. 16.🔍 Which is the odd one out? (a) a plastic ruler (b) a steel spoon (c) a rubber eraser (d) a cotton thread
17. 17.True or false: food colour is not needed for the coloured flower experiment. (a) False (b) True
18. 18.💧 Which of these lets water climb up it? (a) a piece of foil (b) a steel spoon (c) a strip of cloth (d) a rubber eraser
19. 19.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) colour climbs up it (c) it turns to plastic (d) nothing ever happens
20. 20.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a balloon (c) food colour (d) a white flower
21. 21.💧 Which of these lets water climb up it? (a) a glass marble (b) a plastic ruler (c) a cotton thread (d) a steel spoon
22. 22.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
23. 23.True or false: turmeric powder is needed for the coloured flower experiment. (a) False (b) True
24. 24.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) a piece of foil (b) a rubber eraser (c) a glass marble (d) a piece of chalk
26. 26.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) True (b) False
27. 27.⚖️ 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) False (b) True
28. 28.True or false: a piece of chalk lets water climb up it. (a) False (b) True
29. 29.⚖️ 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) True (b) False
30. 30.🔍 Which is the odd one out? (a) a rubber eraser (b) a glass marble (c) a strip of cloth (d) a plastic ruler
31. 31.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) anyone, without looking (d) a grown-up
32. 32.⚖️ 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 keep it the same (b) we change it (c) we measure it
33. 33.🧺 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 white flower (d) a battery cell
34. 34.True or false: a glass marble does not let water climb. (a) False (b) True
35. 35.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) a rubber eraser (b) a cotton thread (c) a piece of chalk (d) a sugar cube
37. 37.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is what we measure? (a) time for colour to show (b) the amount of colour (c) the room it stands in (d) the kind of flower
38. 38.⚖️ 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 what we measure. (a) True (b) False
39. 39.⚖️ 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 change it (b) we measure it (c) we keep it the same
40. 40.💧 Which of these does not let water climb? (a) a sugar cube (b) a piece of foil (c) a cotton thread (d) a paper towel

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