Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 857 · 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.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) turmeric powder (c) a white flower (d) a few hours of waiting
2. 2.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a magnet (c) food colour (d) a white flower
3. 3.💧 Which of these lets water climb up it? (a) a piece of foil (b) a steel spoon (c) a flower stem (d) a plastic ruler
4. 4.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) a white flower (d) a battery cell
5. 5.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
6. 6.⚖️ 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 amount of colour (d) the room it stands in
7. 7.⚖️ 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) the amount of colour (c) time for colour to show
8. 8.⚖️ 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
9. 9.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
10. 10.🔍 Which is the odd one out? (a) a flower stem (b) a strip of cloth (c) a steel spoon (d) a piece of chalk
11. 11.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
12. 12.⚖️ 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 change it (c) we measure it
13. 13.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False
14. 14.⚖️ 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
15. 15.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) yeast (c) a battery cell (d) a magnet
16. 16.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a battery cell (c) a mirror (d) a glass of water
17. 17.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) food colour (c) a white flower (d) a glass of water
18. 18.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
19. 19.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
20. 20.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
21. 21.⚖️ 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
22. 22.⚖️ 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
23. 23.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
24. 24.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True
25. 25.🌼 How does coloured water reach the petals? (a) through the air (b) it rains on them (c) it is sprayed on (d) through tiny stem tubes
26. 26.💧 Which of these does not let water climb? (a) a glass marble (b) a cotton thread (c) a paper towel (d) a piece of chalk
27. 27.True or false: a steel spoon lets water climb up it. (a) False (b) True
28. 28.🛟 What should you do after handling food colour? (a) wash your hands (b) rub your eyes (c) wipe them on walls (d) lick your fingers
29. 29.💧 Which of these does not let water climb? (a) a steel spoon (b) a paper towel (c) a cotton thread (d) a strip of cloth
30. 30.🔍 Which is the odd one out? (a) a glass marble (b) a strip of cloth (c) a flower stem (d) a paper towel
31. 31.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it sinks at once (c) nothing ever happens (d) it turns to plastic
32. 32.⚖️ 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
33. 33.🔍 Which is the odd one out? (a) a piece of chalk (b) a steel spoon (c) a plastic ruler (d) a piece of foil
34. 34.⚖️ 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
35. 35.🧺 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 battery cell (d) food colour
36. 36.True or false: food colour is needed for the coloured flower experiment. (a) True (b) False
37. 37.⚖️ 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
38. 38.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they fall off at once (b) they all turn green (c) they stay white (d) they turn two colours
39. 39.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
40. 40.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False

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