Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 693 · 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 lets water climb up it? (a) a piece of foil (b) a strip of cloth (c) a steel spoon (d) a glass marble
2. 2.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through the air (c) through tiny stem tubes (d) it rains on them
3. 3.🔍 Which is the odd one out? (a) a paper towel (b) a steel spoon (c) a flower stem (d) a cotton thread
4. 4.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a battery cell (c) a few hours of waiting (d) turmeric powder
5. 5.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
6. 6.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a white flower (c) food colour (d) a battery cell
7. 7.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) a grown-up (d) anyone, without looking
8. 8.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
9. 9.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
10. 10.⚖️ 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) True (b) False
11. 11.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a cotton thread (c) a glass marble (d) a steel spoon
12. 12.True or false: a rubber eraser lets water climb up it. (a) False (b) True
13. 13.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
14. 14.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) a white flower (d) a balloon
15. 15.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
16. 16.🔍 Which is the odd one out? (a) a cotton thread (b) a rubber eraser (c) a piece of chalk (d) a flower stem
17. 17.⚖️ 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 amount of water (b) time for colour to show (c) the length of the stem
18. 18.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
19. 19.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) turmeric powder (c) a few hours of waiting (d) food colour
20. 20.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) petals are magnetic (c) the stem is hot (d) petals lose water to air
21. 21.⚖️ 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 kind of flower (b) the amount of water (c) time for colour to show (d) the room it stands in
22. 22.💧 Which of these does not let water climb? (a) a strip of cloth (b) a flower stem (c) a cotton thread (d) a rubber eraser
23. 23.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False
24. 24.💧 Which of these does not let water climb? (a) a paper towel (b) a cotton thread (c) a piece of chalk (d) a plastic ruler
25. 25.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a sugar cube (c) a piece of foil (d) a plastic ruler
26. 26.🧺 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 battery cell (d) food colour
27. 27.True or false: a plastic ruler does not let water climb. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a flower stem (d) a plastic ruler
29. 29.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of chalk (c) a glass marble (d) a rubber eraser
30. 30.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
31. 31.🔍 Which is the odd one out? (a) a sugar cube (b) a piece of chalk (c) a plastic ruler (d) a cotton thread
32. 32.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
33. 33.🔍 Which is the odd one out? (a) a sugar cube (b) a plastic ruler (c) a piece of foil (d) a rubber eraser
34. 34.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) yeast (c) a white flower (d) a glass of water
35. 35.True or false: a piece of chalk does not let water climb. (a) True (b) False
36. 36.⚖️ 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) the amount of water (c) the kind of flower (d) time for colour to show
37. 37.⚖️ 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
38. 38.🧺 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 mirror (d) food colour
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 the one thing we change. (a) True (b) False
40. 40.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False

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