Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 680 · 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 is the odd one out? (a) a plastic ruler (b) a paper towel (c) a cotton thread (d) a strip of cloth
2. 2.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True
3. 3.⚖️ 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
4. 4.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
5. 5.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
6. 6.⚖️ 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 measure it (b) we keep it the same (c) we change it
7. 7.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
8. 8.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
9. 9.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a white flower (c) a battery cell (d) a few hours of waiting
10. 10.🔍 Which is the odd one out? (a) a piece of chalk (b) a sugar cube (c) a glass marble (d) a flower stem
11. 11.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a glass of water (c) turmeric powder (d) a white flower
12. 12.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a flower stem (c) a rubber eraser (d) a steel spoon
13. 13.⚖️ 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 change it (b) we keep it the same (c) we measure it
14. 14.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) a few hours of waiting (c) a glass of water (d) food colour
15. 15.⚖️ 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 amount of water (b) the room it stands in (c) time for colour to show (d) the length of the stem
16. 16.🔍 Which is the odd one out? (a) a glass marble (b) a piece of foil (c) a paper towel (d) a plastic ruler
17. 17.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
18. 18.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals lose water to air (c) petals like colour (d) petals are magnetic
19. 19.🛟 What should you do after handling food colour? (a) rub your eyes (b) lick your fingers (c) wipe them on walls (d) wash your hands
20. 20.🧺 Which of these is not needed for the coloured flower experiment? (a) a balloon (b) a glass of water (c) a few hours of waiting (d) a white flower
21. 21.💧 Which of these does not let water climb? (a) a sugar cube (b) a glass marble (c) a piece of chalk (d) a cotton thread
22. 22.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
23. 23.💧 Which of these lets water climb up it? (a) a steel spoon (b) a plastic ruler (c) a piece of foil (d) a cotton thread
24. 24.⚖️ 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
25. 25.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
26. 26.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) False (b) True
27. 27.💧 Which of these lets water climb up it? (a) a piece of foil (b) a paper towel (c) a steel spoon (d) a glass marble
28. 28.💧 Which of these does not let water climb? (a) a strip of cloth (b) a plastic ruler (c) a cotton thread (d) a flower stem
29. 29.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
30. 30.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the stem turns to ice (c) the petals turn bluish (d) the water turns green
31. 31.True or false: a balloon is needed for the coloured flower experiment. (a) False (b) True
32. 32.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a mirror (c) food colour (d) a balloon
33. 33.💧 Which of these lets water climb up it? (a) a steel spoon (b) a rubber eraser (c) a piece of foil (d) a sugar cube
34. 34.🧺 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) turmeric powder (d) a glass of water
35. 35.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they turn two colours (b) they stay white (c) they fall off at once (d) they all turn green
36. 36.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a strip of cloth (c) a steel spoon (d) a piece of foil
37. 37.True or false: food colour is needed for the coloured flower experiment. (a) False (b) True
38. 38.⚖️ 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) True (b) False
39. 39.⚖️ 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
40. 40.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it

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