Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 141 · 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.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
2. 2.🛟 What should you do after handling food colour? (a) rub your eyes (b) wipe them on walls (c) lick your fingers (d) wash your hands
3. 3.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the water turns green (c) the flower floats away (d) the petals turn bluish
4. 4.⚖️ 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
5. 5.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a glass of water (d) a battery cell
6. 6.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
7. 7.⚖️ 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
8. 8.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) a white flower (c) food colour (d) a few hours of waiting
9. 9.True or false: a steel spoon lets water climb up it. (a) True (b) False
10. 10.💧 Which of these does not let water climb? (a) a piece of foil (b) a sugar cube (c) a cotton thread (d) a piece of chalk
11. 11.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
12. 12.True or false: food colour is not needed for the coloured flower experiment. (a) False (b) True
13. 13.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) turmeric powder (b) a white flower (c) a few hours of waiting (d) a glass of water
14. 14.💧 Which of these lets water climb up it? (a) a piece of foil (b) a steel spoon (c) a cotton thread (d) a glass marble
15. 15.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a balloon (c) a few hours of waiting (d) a white flower
16. 16.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
17. 17.💧 Which of these does not let water climb? (a) a piece of chalk (b) a glass marble (c) a flower stem (d) a cotton thread
18. 18.💧 Which of these lets water climb up it? (a) a piece of foil (b) a flower stem (c) a rubber eraser (d) a steel spoon
19. 19.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
20. 20.⚖️ 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 kind of flower (b) the room it stands in (c) the length of the stem (d) time for colour to show
21. 21.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) food colour (c) a mirror (d) a white flower
22. 22.🔍 Which is the odd one out? (a) a paper towel (b) a sugar cube (c) a strip of cloth (d) a piece of foil
23. 23.🧺 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 few hours of waiting (d) a magnet
24. 24.⚖️ 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
25. 25.💧 Which of these lets water climb up it? (a) a steel spoon (b) a strip of cloth (c) a glass marble (d) a plastic ruler
26. 26.True or false: a sugar cube does not let water climb. (a) True (b) False
27. 27.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) turmeric powder (c) a white flower (d) a few hours of waiting
28. 28.⚖️ 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 length of the stem (c) the amount of water
29. 29.True or false: a steel spoon does not let water climb. (a) True (b) False
30. 30.🔮 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 stay white (c) they turn two colours (d) they all turn green
31. 31.⚖️ 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
32. 32.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
33. 33.🔍 Which is the odd one out? (a) a steel spoon (b) a paper towel (c) a plastic ruler (d) a piece of foil
34. 34.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a balloon (c) a few hours of waiting (d) a glass of water
35. 35.⚖️ 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
36. 36.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
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 colour”? (a) we keep it the same (b) we change it (c) we measure it
38. 38.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
39. 39.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) magnetism (c) evaporation (d) capillary action
40. 40.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through tiny stem tubes (c) it rains on them (d) through the air

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