Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 244 · 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 lets water climb up it? (a) a plastic ruler (b) a piece of foil (c) a glass marble (d) a strip of cloth
2. 2.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
3. 3.⚖️ 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 amount of colour (b) time for colour to show (c) the length of the stem (d) the amount of water
4. 4.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
5. 5.💧 Which of these does not let water climb? (a) a glass marble (b) a cotton thread (c) a strip of cloth (d) a paper towel
6. 6.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
7. 7.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) yeast (c) a magnet (d) a glass of water
8. 8.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the stem turns blue (c) the petals turn red (d) no colour change
9. 9.True or false: a piece of chalk does not let water climb. (a) True (b) False
10. 10.⚖️ 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 keep it the same (c) we change it
11. 11.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
12. 12.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) melting (c) evaporation (d) capillary action
13. 13.True or false: a rubber eraser does not let water climb. (a) False (b) True
14. 14.True or false: yeast is not needed for the coloured flower experiment. (a) False (b) True
15. 15.⚖️ 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 water (b) the room it stands in (c) the amount of colour (d) time for colour to show
16. 16.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it turns to plastic (c) nothing ever happens (d) it sinks at once
17. 17.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
18. 18.⚖️ 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 keep it the same (c) we change it
19. 19.True or false: a mirror is not needed for the coloured flower experiment. (a) False (b) True
20. 20.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) yeast (c) a white flower (d) food colour
21. 21.⚖️ 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 what we measure. (a) True (b) False
22. 22.🔍 Which is the odd one out? (a) a piece of foil (b) a piece of chalk (c) a glass marble (d) a steel spoon
23. 23.True or false: a sugar cube lets water climb up it. (a) True (b) False
24. 24.⚖️ 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
25. 25.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) through the air (c) it rains on them (d) it is sprayed on
26. 26.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is the one thing we change. (a) False (b) True
27. 27.True or false: a sugar cube does not let water climb. (a) False (b) True
28. 28.⚖️ 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 the one thing we change. (a) True (b) False
29. 29.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) a mirror (c) a balloon (d) a battery cell
30. 30.🧺 Which of these is needed for the coloured flower experiment? (a) a few hours of waiting (b) a mirror (c) turmeric powder (d) yeast
31. 31.🔍 Which is the odd one out? (a) a sugar cube (b) a flower stem (c) a strip of cloth (d) a plastic ruler
32. 32.🛟 Who should trim the flower stem? (a) a pet (b) anyone, without looking (c) a toddler (d) a grown-up
33. 33.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wipe them on walls (d) wash your hands
34. 34.True or false: a flower stem does not let water climb. (a) True (b) False
35. 35.🧺 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 few hours of waiting (d) a balloon
36. 36.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a glass of water (c) a magnet (d) a white flower
37. 37.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
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.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
40. 40.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a glass of water (c) a white flower (d) a battery cell

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