Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 796 · 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 few hours of waiting (b) food colour (c) a white flower (d) a balloon
2. 2.True or false: a magnet is needed for the coloured flower experiment. (a) False (b) True
3. 3.🛟 What should you do after handling food colour? (a) wash your hands (b) wipe them on walls (c) lick your fingers (d) rub your eyes
4. 4.💧 Which of these lets water climb up it? (a) a glass marble (b) a paper towel (c) a steel spoon (d) a plastic ruler
5. 5.💧 Which of these does not let water climb? (a) a plastic ruler (b) a strip of cloth (c) a cotton thread (d) a flower stem
6. 6.🛟 Who should trim the flower stem? (a) a pet (b) a toddler (c) a grown-up (d) anyone, without looking
7. 7.True or false: a flower stem does not let water climb. (a) True (b) False
8. 8.💧 Which of these lets water climb up it? (a) a steel spoon (b) a glass marble (c) a strip of cloth (d) a piece of foil
9. 9.True or false: a battery cell is not needed for the coloured flower experiment. (a) False (b) True
10. 10.⚖️ 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 length of the stem (b) the amount of water (c) time for colour to show (d) the room it stands in
11. 11.💧 Which of these lets water climb up it? (a) a cotton thread (b) a steel spoon (c) a plastic ruler (d) a glass marble
12. 12.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a battery cell (c) a balloon (d) a glass of water
13. 13.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
14. 14.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) nothing ever happens (c) it sinks at once (d) it turns to plastic
15. 15.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
16. 16.True or false: a flower stem lets water climb up it. (a) False (b) True
17. 17.⚖️ 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 measure it (c) we change it
18. 18.🧺 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 white flower (d) a battery cell
19. 19.⚖️ 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 measure it (c) we keep it the same
20. 20.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a magnet (c) food colour (d) a glass of water
21. 21.⚖️ 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
22. 22.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a few hours of waiting (c) a battery cell (d) a white flower
23. 23.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) yeast (c) a few hours of waiting (d) a white flower
24. 24.⚖️ 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) True (b) False
25. 25.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
26. 26.⚖️ 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
27. 27.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
28. 28.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True
29. 29.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
30. 30.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
31. 31.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) turmeric powder (c) a few hours of waiting (d) a battery cell
32. 32.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) petals lose water to air (c) petals like colour (d) the stem is hot
33. 33.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
34. 34.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
35. 35.True or false: a strip of cloth does not let water climb. (a) False (b) True
36. 36.💧 Which of these does not let water climb? (a) a flower stem (b) a strip of cloth (c) a piece of chalk (d) a glass marble
37. 37.🧺 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 mirror (d) food colour
38. 38.💧 Which of these lets water climb up it? (a) a piece of foil (b) a plastic ruler (c) a flower stem (d) a glass marble
39. 39.True or false: a plastic ruler lets water climb up it. (a) True (b) False
40. 40.True or false: a steel spoon does not let water climb. (a) True (b) False

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