Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 264 · 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.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
2. 2.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) a glass of water (c) a white flower (d) food colour
4. 4.💧 Which of these does not let water climb? (a) a sugar cube (b) a cotton thread (c) a rubber eraser (d) a flower stem
5. 5.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a mirror (c) a white flower (d) a few hours of waiting
6. 6.💧 Which of these lets water climb up it? (a) a piece of foil (b) a cotton thread (c) a plastic ruler (d) a glass marble
7. 7.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is the one thing we change. (a) False (b) True
8. 8.⚖️ 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 measure it (b) we change it (c) we keep it the same
9. 9.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) a few hours of waiting (d) a battery cell
10. 10.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the length of the stem”? (a) we keep it the same (b) we measure it (c) we change it
11. 11.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) the stem is hot (c) petals lose water to air (d) petals like colour
12. 12.🛟 What should you do after handling food colour? (a) lick your fingers (b) wash your hands (c) wipe them on walls (d) rub your eyes
13. 13.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a white flower (c) a glass of water (d) a balloon
14. 14.⚖️ 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
15. 15.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
16. 16.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) no colour change (c) the stem turns blue (d) the flower glows
17. 17.True or false: a paper towel lets water climb up it. (a) True (b) False
18. 18.⚖️ 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 colour (b) time for colour to show (c) the length of the stem
19. 19.💧 Which of these does not let water climb? (a) a plastic ruler (b) a sugar cube (c) a flower stem (d) a piece of chalk
20. 20.🔍 Which is the odd one out? (a) a piece of foil (b) a piece of chalk (c) a paper towel (d) a cotton thread
21. 21.🔍 Which is the odd one out? (a) a sugar cube (b) a paper towel (c) a glass marble (d) a cotton thread
22. 22.⚖️ 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 length of the stem (b) the kind of flower (c) the amount of water (d) the room it stands in
23. 23.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
24. 24.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
25. 25.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
26. 26.🛟 Who should trim the flower stem? (a) a pet (b) a toddler (c) a grown-up (d) anyone, without looking
27. 27.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) capillary action (c) magnetism (d) melting
28. 28.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) turmeric powder (d) a white flower
29. 29.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False
30. 30.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
31. 31.🌼 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
32. 32.⚖️ 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 keep it the same (b) we change it (c) we measure it
33. 33.🔍 Which is the odd one out? (a) a paper towel (b) a plastic ruler (c) a glass marble (d) a piece of foil
34. 34.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) True (b) False
35. 35.💧 Which of these lets water climb up it? (a) a steel spoon (b) a rubber eraser (c) a glass marble (d) a piece of chalk
36. 36.⚖️ 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 kind of flower (b) time for colour to show (c) the length of the stem
37. 37.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a magnet (c) a glass of water (d) food colour
38. 38.🧺 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) yeast (d) a white flower
39. 39.⚖️ 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) True (b) False
40. 40.⚖️ 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

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