Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 869 · 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 glass marble (b) a flower stem (c) a cotton thread (d) a piece of chalk
2. 2.🔍 Which is the odd one out? (a) a piece of foil (b) a plastic ruler (c) a paper towel (d) a steel spoon
3. 3.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) it sinks at once (c) colour climbs up it (d) nothing ever happens
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 the one thing we change. (a) False (b) True
5. 5.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) a few hours of waiting (c) food colour (d) a white flower
6. 6.⚖️ 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 change it (b) we measure it (c) we keep it the same
7. 7.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up 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 room it stands in”? (a) we measure it (b) we change it (c) we keep it the same
9. 9.💧 Which of these lets water climb up it? (a) a steel spoon (b) a piece of chalk (c) a plastic ruler (d) a glass marble
10. 10.🔍 Which is the odd one out? (a) a glass marble (b) a sugar cube (c) a piece of foil (d) a steel spoon
11. 11.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a glass of water (d) a battery cell
12. 12.🔍 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
13. 13.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
14. 14.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) food colour (c) a glass of water (d) a balloon
15. 15.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
16. 16.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
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 stay white (b) they all turn green (c) they fall off at once (d) they turn two colours
18. 18.💧 Which of these does not let water climb? (a) a flower stem (b) a steel spoon (c) a piece of chalk (d) a paper towel
19. 19.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
20. 20.⚖️ 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) False (b) True
21. 21.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
22. 22.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a white flower (c) a few hours of waiting (d) a battery cell
23. 23.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a white flower (c) a magnet (d) yeast
24. 24.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a glass of water (c) a magnet (d) turmeric powder
25. 25.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
26. 26.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is the one thing we change. (a) False (b) True
27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) yeast (d) a white flower
28. 28.🔍 Which is the odd one out? (a) a cotton thread (b) a strip of cloth (c) a flower stem (d) a piece of foil
29. 29.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
30. 30.⚖️ 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 keep it the same (b) we measure it (c) we change 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 the one thing we change. (a) True (b) False
32. 32.⚖️ 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
33. 33.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) food colour (c) a balloon (d) a magnet
34. 34.True or false: a glass marble lets water climb up it. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a piece of chalk (b) a glass marble (c) a cotton thread (d) a strip of cloth
36. 36.⚖️ 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) False (b) True
37. 37.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
38. 38.⚖️ 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) time for colour to show (c) the kind of flower
39. 39.🧺 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 magnet
40. 40.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it

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