Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 967 · 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 is not needed for the coloured flower experiment? (a) a glass of water (b) a white flower (c) yeast (d) food colour
2. 2.⚖️ 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
3. 3.True or false: a piece of chalk does not let water climb. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) a rubber eraser (b) a glass marble (c) a cotton thread (d) a steel spoon
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 stay white (b) they all turn green (c) they turn two colours (d) they fall off at once
6. 6.💧 Which of these does not let water climb? (a) a paper towel (b) a piece of foil (c) a cotton thread (d) a flower stem
7. 7.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
8. 8.⚖️ 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
9. 9.🔍 Which is the odd one out? (a) a paper towel (b) a sugar cube (c) a piece of chalk (d) a steel spoon
10. 10.🛟 Who should trim the flower stem? (a) a grown-up (b) anyone, without looking (c) a pet (d) a toddler
11. 11.🧺 Which of these is not needed for the coloured flower experiment? (a) a mirror (b) a few hours of waiting (c) a white flower (d) a glass of water
12. 12.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
13. 13.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) turmeric powder (c) a white flower (d) a glass of water
14. 14.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a steel spoon (c) a strip of cloth (d) a rubber eraser
15. 15.True or false: a cotton thread lets water climb up it. (a) True (b) False
16. 16.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a few hours of waiting (c) a balloon (d) a glass of water
17. 17.🔍 Which is the odd one out? (a) a strip of cloth (b) a piece of chalk (c) a flower stem (d) a glass marble
18. 18.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
19. 19.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a sugar cube (c) a glass marble (d) a piece of foil
20. 20.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) 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 room it stands in”? (a) we keep it the same (b) we measure it (c) we change it
22. 22.⚖️ 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
23. 23.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
24. 24.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
25. 25.⚖️ 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
26. 26.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a white flower (c) a magnet (d) a balloon
27. 27.⚖️ 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
28. 28.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
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.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals are magnetic (c) petals like colour (d) petals lose water to air
31. 31.⚖️ 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
32. 32.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
33. 33.🔍 Which is the odd one out? (a) a strip of cloth (b) a cotton thread (c) a sugar cube (d) a rubber eraser
34. 34.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through tiny stem tubes (c) it rains on them (d) through the air
35. 35.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) yeast (c) a glass of water (d) a balloon
36. 36.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of foil (c) a strip of cloth (d) a rubber eraser
37. 37.True or false: a battery cell is not needed for the coloured flower experiment. (a) False (b) True
38. 38.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
39. 39.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
40. 40.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False

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