Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 565 · 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 kind of flower”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
3. 3.🛟 Who should trim the flower stem? (a) a pet (b) anyone, without looking (c) a toddler (d) a grown-up
4. 4.True or false: a sugar cube does not let water climb. (a) True (b) False
5. 5.🛟 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
6. 6.⚖️ 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 keep it the same (c) we measure it
7. 7.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they turn two colours (c) they fall off at once (d) they all turn green
8. 8.💧 Which of these does not let water climb? (a) a strip of cloth (b) a paper towel (c) a flower stem (d) a steel spoon
9. 9.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is what we measure? (a) the amount of colour (b) the length of the stem (c) the room it stands in (d) time for colour to show
10. 10.🧺 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 glass of water (d) turmeric powder
11. 11.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
12. 12.⚖️ 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 kept the same. (a) True (b) False
13. 13.True or false: food colour 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? Which of these is kept the same? (a) the length of the stem (b) time for colour to show (c) the amount of colour
15. 15.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a piece of foil (c) a steel spoon (d) a cotton thread
16. 16.⚖️ 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 room it stands in (b) time for colour to show (c) the kind of flower (d) the length of the stem
17. 17.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) capillary action (c) melting (d) evaporation
18. 18.True or false: turmeric powder is needed for the coloured flower experiment. (a) False (b) True
19. 19.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a sugar cube (c) a steel spoon (d) a glass marble
20. 20.💧 Which of these lets water climb up it? (a) a glass marble (b) a rubber eraser (c) a steel spoon (d) a flower stem
21. 21.⚖️ 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 kind of flower (c) time for colour to show
22. 22.🔍 Which is the odd one out? (a) a paper towel (b) a strip of cloth (c) a piece of foil (d) a piece of chalk
23. 23.🔍 Which is the odd one out? (a) a flower stem (b) a piece of chalk (c) a paper towel (d) a rubber eraser
24. 24.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
25. 25.🔍 Which is the odd one out? (a) a piece of foil (b) a steel spoon (c) a plastic ruler (d) a strip of cloth
26. 26.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a paper towel (d) a steel spoon
27. 27.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
28. 28.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a balloon (c) a white flower (d) a few hours of waiting
29. 29.⚖️ 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 kept the same. (a) False (b) True
30. 30.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
31. 31.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
32. 32.True or false: a battery cell is not needed for the coloured flower experiment. (a) False (b) True
33. 33.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a plastic ruler (b) a rubber eraser (c) a steel spoon (d) a flower stem
35. 35.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
36. 36.🧺 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) food colour (d) yeast
37. 37.💧 Which of these does not let water climb? (a) a strip of cloth (b) a paper towel (c) a piece of foil (d) a sugar cube
38. 38.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a magnet (c) a battery cell (d) a glass of water
39. 39.🌼 How does coloured water reach the petals? (a) it rains on them (b) it is sprayed on (c) through the air (d) through tiny stem tubes
40. 40.💧 Which of these does not let water climb? (a) a piece of chalk (b) a cotton thread (c) a rubber eraser (d) a flower stem

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