Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 994 · 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.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) colour climbs up it (c) it sinks at once (d) it turns to plastic
2. 2.True or false: a battery cell is not 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? Which of these is the one thing we change? (a) the amount of colour (b) the room it stands in (c) time for colour to show (d) the length of the stem
4. 4.💧 Which of these does not let water climb? (a) a sugar cube (b) a piece of chalk (c) a plastic ruler (d) a cotton thread
5. 5.🔍 Which is the odd one out? (a) a strip of cloth (b) a plastic ruler (c) a cotton thread (d) a piece of chalk
6. 6.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is the one thing we change. (a) False (b) True
7. 7.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a mirror (d) a glass of water
8. 8.⚖️ 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 kept the same. (a) False (b) True
9. 9.⚖️ 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
10. 10.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is kept the same. (a) True (b) False
11. 11.⚖️ 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 measure it (b) we keep it the same (c) we change it
12. 12.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
13. 13.🔍 Which is the odd one out? (a) a flower stem (b) a sugar cube (c) a cotton thread (d) a glass marble
14. 14.⚖️ 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 change it (b) we keep it the same (c) we measure it
15. 15.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
16. 16.⚖️ 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
17. 17.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a few hours of waiting (c) a white flower (d) a glass of water
18. 18.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a flower stem (d) a glass marble
19. 19.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a magnet (c) a mirror (d) a few hours of waiting
20. 20.True or false: a steel spoon lets water climb up it. (a) False (b) True
21. 21.🧺 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 magnet
22. 22.💧 Which of these lets water climb up it? (a) a steel spoon (b) a plastic ruler (c) a paper towel (d) a piece of foil
23. 23.True or false: a rubber eraser lets water climb up it. (a) True (b) False
24. 24.⚖️ 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 change it (c) we measure it
25. 25.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a glass of water (c) a few hours of waiting (d) a balloon
26. 26.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a pet (d) a grown-up
27. 27.🔍 Which is the odd one out? (a) a plastic ruler (b) a steel spoon (c) a flower stem (d) a rubber eraser
28. 28.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
29. 29.True or false: a flower stem does not let water climb. (a) False (b) True
30. 30.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
31. 31.⚖️ 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 keep it the same (b) we change it (c) we measure it
32. 32.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
33. 33.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) the stem is hot (c) petals are magnetic (d) petals lose water to air
34. 34.💧 Which of these lets water climb up it? (a) a cotton thread (b) a piece of foil (c) a rubber eraser (d) a steel spoon
35. 35.💧 Which of these does not let water climb? (a) a sugar cube (b) a cotton thread (c) a flower stem (d) a rubber eraser
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 what we measure. (a) True (b) False
37. 37.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
38. 38.True or false: a paper towel does not let water climb. (a) True (b) False
39. 39.⚖️ 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
40. 40.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False

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