Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 374 · 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.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the water turns green (c) the flower floats away (d) the petals turn bluish
2. 2.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) it rains on them (c) through tiny stem tubes (d) through the air
3. 3.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
4. 4.🔍 Which is the odd one out? (a) a rubber eraser (b) a piece of foil (c) a flower stem (d) a plastic ruler
5. 5.⚖️ 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 room it stands in (b) time for colour to show (c) the kind of flower (d) the amount of water
6. 6.🧺 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) turmeric powder (d) a white flower
7. 7.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) nothing ever happens (c) colour climbs up it (d) it sinks at once
8. 8.💧 Which of these lets water climb up it? (a) a strip of cloth (b) a plastic ruler (c) a piece of foil (d) a steel spoon
9. 9.🔍 Which is the odd one out? (a) a piece of foil (b) a paper towel (c) a cotton thread (d) a piece of chalk
10. 10.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) food colour (c) a white flower (d) a glass of water
11. 11.⚖️ 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 measure it (b) we keep it the same (c) we change it
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a balloon (d) a few hours of waiting
13. 13.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
14. 14.True or false: a rubber eraser lets water climb up it. (a) False (b) True
15. 15.⚖️ 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
16. 16.True or false: a battery cell is not needed for the coloured flower experiment. (a) False (b) True
17. 17.🔮 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 fall off at once (c) they stay white (d) they all turn green
18. 18.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
19. 19.⚖️ 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 room it stands in (b) time for colour to show (c) the length of the stem (d) the amount of colour
20. 20.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
21. 21.True or false: a balloon is needed for the coloured flower experiment. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) a sugar cube (b) a strip of cloth (c) a plastic ruler (d) a piece of chalk
23. 23.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a piece of foil (c) a sugar cube (d) a glass marble
24. 24.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
25. 25.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
26. 26.True or false: a strip of cloth lets water climb up it. (a) True (b) False
27. 27.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
28. 28.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
29. 29.True or false: a steel spoon lets water climb up it. (a) True (b) False
30. 30.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
31. 31.💧 Which of these lets water climb up it? (a) a glass marble (b) a plastic ruler (c) a flower stem (d) a steel spoon
32. 32.🔍 Which is the odd one out? (a) a flower stem (b) a cotton thread (c) a rubber eraser (d) a strip of cloth
33. 33.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the flower glows (c) the petals turn red (d) the stem turns blue
34. 34.🛟 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
35. 35.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
36. 36.🧺 Which of these is not needed for the coloured flower experiment? (a) yeast (b) a glass of water (c) a few hours of waiting (d) a white flower
37. 37.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a white flower (c) a balloon (d) food colour
38. 38.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) a few hours of waiting (c) a glass of water (d) a white flower
39. 39.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) turmeric powder (c) food colour (d) a white flower
40. 40.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed

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