Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 741 · 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.⚖️ 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
2. 2.⚖️ 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
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) food colour (d) yeast
4. 4.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
5. 5.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
6. 6.🧺 Which of these is not needed for the coloured flower experiment? (a) a battery cell (b) a few hours of waiting (c) a glass of water (d) food colour
7. 7.🔍 Which is the odd one out? (a) a paper towel (b) a flower stem (c) a cotton thread (d) a plastic ruler
8. 8.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a balloon (c) a glass of water (d) a few hours of waiting
9. 9.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
10. 10.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
11. 11.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True
12. 12.🛟 What should you do after handling food colour? (a) rub your eyes (b) wipe them on walls (c) wash your hands (d) lick your fingers
13. 13.🧺 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 magnet
14. 14.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
15. 15.True or false: a rubber eraser does not let water climb. (a) True (b) False
16. 16.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False
17. 17.True or false: a paper towel lets water climb up it. (a) True (b) False
18. 18.🧺 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 mirror
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 measure it (b) we change it (c) we keep it the same
20. 20.True or false: a magnet is needed for the coloured flower experiment. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) a paper towel (b) a sugar cube (c) a cotton thread (d) a steel spoon
22. 22.🛟 Who should trim the flower stem? (a) a grown-up (b) a pet (c) a toddler (d) anyone, without looking
23. 23.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
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 kept the same. (a) True (b) False
25. 25.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
26. 26.⚖️ 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
27. 27.True or false: a steel spoon lets water climb up it. (a) True (b) False
28. 28.💧 Which of these does not let water climb? (a) a glass marble (b) a strip of cloth (c) a flower stem (d) a piece of chalk
29. 29.True or false: a strip of cloth does not let water climb. (a) False (b) True
30. 30.⚖️ 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) False (b) True
31. 31.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) food colour (c) a glass of water (d) turmeric powder
32. 32.⚖️ 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) True (b) False
33. 33.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) it is sprayed on (c) it rains on them (d) through the air
34. 34.🔍 Which is the odd one out? (a) a sugar cube (b) a cotton thread (c) a glass marble (d) a strip of cloth
35. 35.⚖️ 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
36. 36.⚖️ 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
37. 37.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
38. 38.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
39. 39.⚖️ 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) False (b) True
40. 40.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False

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