Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 949 · 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 magnet is needed for the coloured flower experiment. (a) False (b) True
2. 2.True or false: a glass of water is not 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 amount of water”? (a) we change it (b) we measure it (c) we keep it the same
4. 4.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) yeast (c) turmeric powder (d) a battery cell
5. 5.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is the one thing we change. (a) True (b) False
6. 6.⚖️ 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) True (b) False
7. 7.🧺 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
8. 8.True or false: a sugar cube lets water climb up it. (a) True (b) False
9. 9.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
10. 10.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
11. 11.True or false: a steel spoon does not let water climb. (a) False (b) True
12. 12.True or false: a cotton thread lets water climb up it. (a) False (b) True
13. 13.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
14. 14.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
15. 15.💧 Which of these lets water climb up it? (a) a steel spoon (b) a cotton thread (c) a piece of foil (d) a plastic ruler
16. 16.True or false: a plastic ruler lets water climb up it. (a) False (b) True
17. 17.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the water turns green (c) the stem turns to ice (d) the flower floats away
18. 18.⚖️ 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 measure it (b) we keep it the same (c) we change it
19. 19.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
20. 20.🧺 Which of these is needed for the coloured flower experiment? (a) a few hours of waiting (b) a mirror (c) turmeric powder (d) a magnet
21. 21.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
22. 22.⚖️ 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 change it (b) we measure it (c) we keep it the same
23. 23.💧 Which of these lets water climb up it? (a) a piece of foil (b) a piece of chalk (c) a rubber eraser (d) a plastic ruler
24. 24.True or false: a steel spoon lets water climb up it. (a) True (b) False
25. 25.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is what we measure. (a) False (b) True
26. 26.⚖️ 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 measure it (b) we change it (c) we keep it the same
27. 27.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
28. 28.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) through the air (c) it is sprayed on (d) it rains on them
29. 29.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) melting (c) capillary action (d) magnetism
30. 30.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
31. 31.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a balloon (c) food colour (d) a few hours of waiting
32. 32.🔍 Which is the odd one out? (a) a piece of foil (b) a glass marble (c) a plastic ruler (d) a cotton thread
33. 33.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
34. 34.True or false: a glass of water is needed for the coloured flower experiment. (a) True (b) False
35. 35.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
36. 36.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
37. 37.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
38. 38.🔍 Which is the odd one out? (a) a rubber eraser (b) a paper towel (c) a steel spoon (d) a glass marble
39. 39.⚖️ 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) False (b) True
40. 40.🛟 What should you do after handling food colour? (a) rub your eyes (b) wash your hands (c) wipe them on walls (d) lick your fingers

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