Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 248 · 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.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
2. 2.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
3. 3.💧 Which of these lets water climb up it? (a) a paper towel (b) a steel spoon (c) a rubber eraser (d) a glass marble
4. 4.💧 Which of these does not let water climb? (a) a flower stem (b) a sugar cube (c) a cotton thread (d) a piece of foil
5. 5.🔍 Which is the odd one out? (a) a cotton thread (b) a sugar cube (c) a plastic ruler (d) a flower stem
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) time for colour to show (b) the amount of water (c) the amount of colour (d) the length of the stem
7. 7.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a mirror (c) a few hours of waiting (d) food colour
8. 8.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) it turns to plastic (c) nothing ever happens (d) colour climbs up it
9. 9.💧 Which of these lets water climb up it? (a) a glass marble (b) a strip of cloth (c) a steel spoon (d) a plastic ruler
10. 10.🛟 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
11. 11.⚖️ 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 measure it (c) we keep it the same
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a battery cell (c) a few hours of waiting (d) food colour
13. 13.⚖️ 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) True (b) False
14. 14.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is the one thing we change. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) a steel spoon (b) a rubber eraser (c) a paper towel (d) a glass marble
16. 16.🧺 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) food colour (d) a white flower
17. 17.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a glass of water (c) a magnet (d) food colour
18. 18.⚖️ 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 keep it the same (b) we measure it (c) we change it
19. 19.📘 What is it called when water climbs up thin tubes or paper by itself? (a) capillary action (b) evaporation (c) magnetism (d) melting
20. 20.⚖️ 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 change it (b) we measure it (c) we keep it the same
21. 21.⚖️ 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 measure it (b) we change it (c) we keep it the same
22. 22.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a flower stem (d) a glass marble
23. 23.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) food colour (c) a balloon (d) yeast
24. 24.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
25. 25.💧 Which of these lets water climb up it? (a) a piece of foil (b) a rubber eraser (c) a cotton thread (d) a glass marble
26. 26.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
27. 27.⚖️ 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
28. 28.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the stem turns blue (c) the flower glows (d) no colour change
29. 29.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False
30. 30.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a grown-up (d) a pet
31. 31.⚖️ 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 kind of flower (b) the amount of water (c) the length of the stem (d) time for colour to show
32. 32.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is kept the same. (a) True (b) False
33. 33.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True
34. 34.True or false: a steel spoon lets water climb up it. (a) True (b) False
35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a few hours of waiting (c) a balloon (d) food colour
36. 36.⚖️ 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) False (b) True
37. 37.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
38. 38.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a glass of water (c) a balloon (d) a magnet
39. 39.True or false: a magnet is not needed for the coloured flower experiment. (a) False (b) True
40. 40.🧺 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 magnet (d) food colour

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