Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 163 · 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 of these is not needed for the coloured flower experiment? (a) a white flower (b) a glass of water (c) a few hours of waiting (d) a battery cell
2. 2.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
3. 3.🔍 Which is the odd one out? (a) a piece of chalk (b) a steel spoon (c) a piece of foil (d) a plastic ruler
4. 4.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it turns to plastic (c) it sinks at once (d) colour climbs up it
5. 5.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
6. 6.💧 Which of these does not let water climb? (a) a glass marble (b) a sugar cube (c) a cotton thread (d) a flower stem
7. 7.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is what we measure? (a) time for colour to show (b) the amount of colour (c) the kind of flower (d) the amount of water
8. 8.⚖️ 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) False (b) True
9. 9.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
10. 10.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a few hours of waiting (c) a white flower (d) yeast
11. 11.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
12. 12.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a glass of water (c) food colour (d) turmeric powder
13. 13.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
14. 14.⚖️ 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
15. 15.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) a glass of water (c) a white flower (d) a few hours of waiting
16. 16.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a mirror (d) a glass of water
17. 17.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
18. 18.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
19. 19.🛟 What should you do after handling food colour? (a) rub your eyes (b) lick your fingers (c) wash your hands (d) wipe them on walls
20. 20.True or false: a flower stem lets water climb up it. (a) True (b) False
21. 21.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) evaporation (c) capillary action (d) magnetism
22. 22.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a white flower (c) a magnet (d) food colour
23. 23.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) a piece of foil (b) a rubber eraser (c) a flower stem (d) a steel spoon
25. 25.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) turmeric powder (c) yeast (d) a glass of water
26. 26.🔍 Which is the odd one out? (a) a plastic ruler (b) a cotton thread (c) a flower stem (d) a paper towel
27. 27.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they all turn green (b) they stay white (c) they fall off at once (d) they turn two colours
28. 28.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a balloon (c) a few hours of waiting (d) food colour
29. 29.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) turmeric powder (b) a few hours of waiting (c) a white flower (d) food colour
30. 30.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
31. 31.True or false: a plastic ruler lets water climb up it. (a) False (b) True
32. 32.True or false: a piece of chalk lets water climb up it. (a) True (b) False
33. 33.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
34. 34.🔍 Which is the odd one out? (a) a glass marble (b) a steel spoon (c) a sugar cube (d) a plastic ruler
35. 35.True or false: a piece of foil does not let water climb. (a) False (b) True
36. 36.True or false: a glass marble lets water climb up it. (a) True (b) False
37. 37.⚖️ 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
38. 38.True or false: a piece of chalk does not let water climb. (a) False (b) True
39. 39.True or false: a steel spoon lets water climb up it. (a) False (b) True
40. 40.⚖️ 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 measure it (b) we keep it the same (c) we change it

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