Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 838 · 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 needed for the coloured flower experiment? (a) a battery cell (b) a balloon (c) a glass of water (d) a magnet
2. 2.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
3. 3.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a battery cell (c) a glass of water (d) a white flower
4. 4.🧺 Which of these is needed for the coloured flower experiment? (a) a few hours of waiting (b) a mirror (c) a balloon (d) a magnet
5. 5.True or false: a magnet is not needed for the coloured flower experiment. (a) False (b) True
6. 6.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
7. 7.⚖️ 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
8. 8.⚖️ 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
9. 9.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) it sinks at once (c) nothing ever happens (d) colour climbs up it
10. 10.🛟 What should you do after handling food colour? (a) lick your fingers (b) wash your hands (c) rub your eyes (d) wipe them on walls
11. 11.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) turmeric powder (c) food colour (d) a white flower
12. 12.⚖️ 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 measure it (b) we change it (c) we keep it the same
13. 13.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a toddler (c) a pet (d) a grown-up
14. 14.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
15. 15.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is kept the same? (a) time for colour to show (b) the kind of flower (c) the length of the stem
16. 16.💧 Which of these lets water climb up it? (a) a piece of foil (b) a rubber eraser (c) a cotton thread (d) a plastic ruler
17. 17.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a white flower (c) a balloon (d) a few hours of waiting
18. 18.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is what we measure. (a) False (b) True
19. 19.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
20. 20.⚖️ 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 what we measure. (a) True (b) False
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 measure it (b) we change it (c) we keep it the same
22. 22.🔍 Which is the odd one out? (a) a flower stem (b) a piece of chalk (c) a cotton thread (d) a steel spoon
23. 23.🌼 How does coloured water reach the petals? (a) it rains on them (b) through the air (c) through tiny stem tubes (d) it is sprayed on
24. 24.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
25. 25.True or false: a balloon is needed for the coloured flower experiment. (a) False (b) True
26. 26.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
27. 27.True or false: a glass marble does not let water climb. (a) False (b) True
28. 28.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
29. 29.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is kept the same. (a) True (b) False
30. 30.⚖️ 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 change it (b) we measure it (c) we keep it the same
31. 31.💧 Which of these lets water climb up it? (a) a piece of foil (b) a plastic ruler (c) a paper towel (d) a steel spoon
32. 32.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
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.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
35. 35.🧺 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 glass of water
36. 36.🧺 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
37. 37.⚖️ 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 length of the stem (b) time for colour to show (c) the room it stands in
38. 38.True or false: a steel spoon does not let water climb. (a) False (b) True
39. 39.💧 Which of these does not let water climb? (a) a flower stem (b) a strip of cloth (c) a cotton thread (d) a steel spoon
40. 40.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a magnet (c) a glass of water (d) a white flower

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