Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 218 · 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 is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a glass of water (c) a white flower (d) turmeric powder
2. 2.True or false: a white flower is not needed for the coloured flower experiment. (a) False (b) True
3. 3.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a balloon (c) a white flower (d) yeast
4. 4.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) it rains on them (c) through the air (d) through tiny stem tubes
5. 5.💧 Which of these does not let water climb? (a) a paper towel (b) a piece of chalk (c) a strip of cloth (d) a piece of foil
6. 6.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the petals turn red (c) the stem turns blue (d) no colour change
7. 7.⚖️ 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
8. 8.⚖️ 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 measure it (b) we change it (c) we keep it the same
9. 9.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
10. 10.💧 Which of these does not let water climb? (a) a rubber eraser (b) a piece of chalk (c) a flower stem (d) a paper towel
11. 11.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the water turns green (c) the stem turns to ice (d) the petals turn bluish
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a white flower (c) food colour (d) a balloon
13. 13.💧 Which of these lets water climb up it? (a) a steel spoon (b) a strip of cloth (c) a plastic ruler (d) a piece of foil
14. 14.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) yeast (d) a few hours of waiting
15. 15.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a magnet (c) a glass of water (d) a few hours of waiting
16. 16.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
17. 17.💧 Which of these lets water climb up it? (a) a paper towel (b) a glass marble (c) a plastic ruler (d) a rubber eraser
18. 18.🛟 What should you do after handling food colour? (a) wipe them on walls (b) wash your hands (c) rub your eyes (d) lick your fingers
19. 19.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
20. 20.⚖️ 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) time for colour to show (b) the kind of flower (c) the length of the stem (d) the room it stands in
21. 21.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) yeast (c) turmeric powder (d) a battery cell
22. 22.True or false: a sugar cube lets water climb up it. (a) True (b) False
23. 23.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
24. 24.💧 Which of these lets water climb up it? (a) a flower stem (b) a steel spoon (c) a rubber eraser (d) a glass marble
25. 25.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a white flower (c) a glass of water (d) a mirror
26. 26.🔍 Which is the odd one out? (a) a rubber eraser (b) a strip of cloth (c) a steel spoon (d) a plastic ruler
27. 27.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) True (b) False
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 kept the same. (a) True (b) False
29. 29.💧 Which of these does not let water climb? (a) a piece of chalk (b) a steel spoon (c) a paper towel (d) a flower stem
30. 30.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) a balloon (c) a magnet (d) a mirror
31. 31.True or false: turmeric powder is needed for the coloured flower experiment. (a) False (b) True
32. 32.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a battery cell (c) a few hours of waiting (d) a white flower
33. 33.🔮 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
34. 34.🔍 Which is the odd one out? (a) a steel spoon (b) a sugar cube (c) a piece of foil (d) a plastic ruler
35. 35.🔍 Which is the odd one out? (a) a piece of foil (b) a strip of cloth (c) a piece of chalk (d) a cotton thread
36. 36.True or false: a steel spoon lets water climb up it. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) a paper towel (b) a plastic ruler (c) a steel spoon (d) a piece of foil
38. 38.True or false: a strip of cloth does not let water climb. (a) True (b) False
39. 39.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) melting (c) evaporation (d) capillary action
40. 40.True or false: a paper towel does not let water climb. (a) True (b) False

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