Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 717 · 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 does not let water climb? (a) a strip of cloth (b) a rubber eraser (c) a piece of chalk (d) a flower stem
2. 2.🔍 Which is the odd one out? (a) a paper towel (b) a strip of cloth (c) a glass marble (d) a sugar cube
3. 3.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is what we measure? (a) the amount of colour (b) the amount of water (c) time for colour to show (d) the length of the stem
4. 4.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) a few hours of waiting (d) a battery cell
5. 5.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a white flower (c) a balloon (d) food colour
6. 6.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) melting (c) evaporation (d) capillary action
7. 7.🛟 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
8. 8.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
9. 9.⚖️ 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 keep it the same (b) we change it (c) we measure it
10. 10.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) a white flower (d) turmeric powder
11. 11.True or false: a flower stem does not let water climb. (a) True (b) False
12. 12.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) through the air (c) it is sprayed on (d) it rains on them
13. 13.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True
14. 14.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) petals lose water to air (c) the stem is hot (d) petals like colour
15. 15.🧺 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 magnet (d) a glass of water
16. 16.True or false: a steel spoon lets water climb up it. (a) True (b) False
17. 17.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
18. 18.⚖️ 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) True (b) False
19. 19.True or false: a mirror is not needed for the coloured flower experiment. (a) False (b) True
20. 20.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a piece of foil (c) a sugar cube (d) a glass marble
21. 21.💧 Which of these lets water climb up it? (a) a steel spoon (b) a glass marble (c) a rubber eraser (d) a piece of chalk
22. 22.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a white flower (c) yeast (d) a battery cell
23. 23.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a white flower (c) yeast (d) a glass of water
24. 24.True or false: food colour is not needed for the coloured flower experiment. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) a steel spoon (b) a rubber eraser (c) a glass marble (d) a piece of chalk
26. 26.🔍 Which is the odd one out? (a) a strip of cloth (b) a piece of chalk (c) a cotton thread (d) a plastic ruler
27. 27.🔍 Which is the odd one out? (a) a plastic ruler (b) a steel spoon (c) a cotton thread (d) a glass marble
28. 28.⚖️ 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) True (b) False
29. 29.🔍 Which is the odd one out? (a) a flower stem (b) a piece of foil (c) a piece of chalk (d) a cotton thread
30. 30.⚖️ 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 length of the stem (b) the kind of flower (c) time for colour to show
31. 31.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
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) True (b) False
33. 33.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of foil (c) a paper towel (d) a glass marble
34. 34.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
35. 35.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) anyone, without looking (d) a grown-up
36. 36.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
37. 37.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “time for colour to show”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.🔍 Which is the odd one out? (a) a strip of cloth (b) a paper towel (c) a flower stem (d) a steel spoon
39. 39.⚖️ 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 measure it (c) we change it
40. 40.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True

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