Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 851 · 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 is the odd one out? (a) a steel spoon (b) a sugar cube (c) a cotton thread (d) a flower stem
2. 2.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
3. 3.⚖️ 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 keep it the same (b) we measure it (c) we change it
4. 4.⚖️ 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 room it stands in (d) the kind of flower
5. 5.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they fall off at once (b) they turn two colours (c) they stay white (d) they all turn green
6. 6.🌼 How does coloured water reach the petals? (a) through the air (b) it is sprayed on (c) through tiny stem tubes (d) it rains on them
7. 7.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) a balloon (d) a white flower
8. 8.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a battery cell (c) food colour (d) a glass of water
9. 9.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
10. 10.💧 Which of these does not let water climb? (a) a piece of chalk (b) a sugar cube (c) a rubber eraser (d) a cotton thread
11. 11.True or false: turmeric powder is needed for the coloured flower experiment. (a) False (b) True
12. 12.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) petals lose water to air (c) the stem is hot (d) petals like colour
13. 13.⚖️ 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
14. 14.True or false: a sugar cube does not let water climb. (a) True (b) False
15. 15.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
16. 16.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
17. 17.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
18. 18.⚖️ 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
19. 19.🧺 Which of these is not needed for the coloured flower experiment? (a) turmeric powder (b) a few hours of waiting (c) a white flower (d) a glass of water
20. 20.🔮 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
21. 21.True or false: a piece of foil does not let water climb. (a) True (b) False
22. 22.💧 Which of these lets water climb up it? (a) a steel spoon (b) a rubber eraser (c) a flower stem (d) a glass marble
23. 23.🧺 Which of these is not needed for the coloured flower experiment? (a) a battery cell (b) a few hours of waiting (c) a glass of water (d) food colour
24. 24.💧 Which of these lets water climb up it? (a) a paper towel (b) a steel spoon (c) a glass marble (d) a plastic ruler
25. 25.⚖️ 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) the length of the stem (c) the kind of flower (d) time for colour to show
26. 26.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
27. 27.⚖️ 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) True (b) False
28. 28.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
29. 29.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
30. 30.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
31. 31.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
32. 32.💧 Which of these lets water climb up it? (a) a steel spoon (b) a cotton thread (c) a piece of foil (d) a glass marble
33. 33.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
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 water”? (a) we keep it the same (b) we change it (c) we measure it
35. 35.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
36. 36.🔍 Which is the odd one out? (a) a cotton thread (b) a paper towel (c) a rubber eraser (d) a piece of chalk
37. 37.💧 Which of these does not let water climb? (a) a sugar cube (b) a steel spoon (c) a flower stem (d) a strip of cloth
38. 38.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
39. 39.⚖️ 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 what we measure. (a) True (b) False
40. 40.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False

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