Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 498 · 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 flower stem (b) a rubber eraser (c) a paper towel (d) a cotton thread
2. 2.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) turmeric powder (c) yeast (d) a magnet
3. 3.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
4. 4.⚖️ 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 kept the same. (a) True (b) False
5. 5.🧺 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 balloon (d) a white flower
6. 6.True or false: a steel spoon lets water climb up it. (a) False (b) True
7. 7.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
8. 8.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the stem turns to ice (c) the water turns green (d) the flower floats away
9. 9.⚖️ 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) time for colour to show (c) the amount of colour (d) the kind of flower
10. 10.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) False (b) True
11. 11.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) turmeric powder (c) a balloon (d) a magnet
12. 12.⚖️ 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
13. 13.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it sinks at once (c) it turns to plastic (d) nothing ever happens
14. 14.🧺 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) a white flower (d) turmeric powder
15. 15.💧 Which of these lets water climb up it? (a) a glass marble (b) a steel spoon (c) a sugar cube (d) a plastic ruler
16. 16.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
17. 17.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
18. 18.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a battery cell (c) a glass of water (d) a magnet
19. 19.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a white flower (c) yeast (d) a few hours of waiting
20. 20.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
21. 21.⚖️ 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 change it (b) we measure it (c) we keep it the same
22. 22.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the flower glows (c) the stem turns blue (d) the petals turn red
23. 23.💧 Which of these does not let water climb? (a) a paper towel (b) a flower stem (c) a strip of cloth (d) a steel spoon
24. 24.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
25. 25.🔍 Which is the odd one out? (a) a flower stem (b) a strip of cloth (c) a paper towel (d) a glass marble
26. 26.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
27. 27.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
28. 28.⚖️ 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 room it stands in (c) time for colour to show
29. 29.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
30. 30.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
31. 31.⚖️ 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) False (b) True
32. 32.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
33. 33.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
34. 34.⚖️ 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 keep it the same (c) we measure it
35. 35.🔍 Which is the odd one out? (a) a steel spoon (b) a flower stem (c) a piece of chalk (d) a strip of cloth
36. 36.🔍 Which is the odd one out? (a) a piece of chalk (b) a sugar cube (c) a paper towel (d) a rubber eraser
37. 37.⚖️ 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) time for colour to show (c) the amount of water (d) the kind of flower
38. 38.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
39. 39.⚖️ 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) False (b) True
40. 40.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True

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