Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 307 · 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.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
2. 2.💧 Which of these does not let water climb? (a) a plastic ruler (b) a paper towel (c) a piece of chalk (d) a sugar cube
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a magnet (d) a glass of water
4. 4.⚖️ 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 room it stands in (b) time for colour to show (c) the kind of flower (d) the amount of colour
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.💧 Which of these lets water climb up it? (a) a glass marble (b) a steel spoon (c) a cotton thread (d) a piece of foil
7. 7.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
8. 8.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) a glass of water (c) food colour (d) a few hours of waiting
9. 9.True or false: food colour is needed for the coloured flower experiment. (a) False (b) True
10. 10.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a piece of foil (c) a steel spoon (d) a flower stem
11. 11.⚖️ 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 measure it (b) we keep it the same (c) we change it
12. 12.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a piece of foil (d) a sugar cube
13. 13.🔍 Which is the odd one out? (a) a paper towel (b) a rubber eraser (c) a steel spoon (d) a piece of foil
14. 14.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
15. 15.🔍 Which is the odd one out? (a) a strip of cloth (b) a cotton thread (c) a piece of chalk (d) a rubber eraser
16. 16.⚖️ 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) False (b) True
17. 17.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a white flower (c) yeast (d) a few hours of waiting
18. 18.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
19. 19.🛟 What should you do after handling food colour? (a) lick your fingers (b) wash your hands (c) wipe them on walls (d) rub your eyes
20. 20.True or false: a paper towel lets water climb up it. (a) True (b) False
21. 21.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
22. 22.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a glass of water (d) yeast
23. 23.🔍 Which is the odd one out? (a) a sugar cube (b) a strip of cloth (c) a paper towel (d) a steel spoon
24. 24.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
25. 25.True or false: a rubber eraser does not let water climb. (a) True (b) False
26. 26.🛟 Who should trim the flower stem? (a) a pet (b) anyone, without looking (c) a grown-up (d) a toddler
27. 27.True or false: a steel spoon lets water climb up it. (a) True (b) False
28. 28.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a few hours of waiting (c) turmeric powder (d) a balloon
29. 29.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the petals turn red (c) the stem turns blue (d) no colour change
30. 30.⚖️ 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 kind of flower (b) time for colour to show (c) the length of the stem
31. 31.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) it sinks at once (c) nothing ever happens (d) colour climbs up it
32. 32.🔍 Which is the odd one out? (a) a plastic ruler (b) a paper towel (c) a piece of chalk (d) a cotton thread
33. 33.⚖️ 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
34. 34.⚖️ 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 change it (c) we measure it
35. 35.True or false: a white flower is not needed for the coloured flower experiment. (a) False (b) True
36. 36.⚖️ 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
37. 37.⚖️ 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) False (b) True
38. 38.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
39. 39.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) a few hours of waiting (d) a mirror
40. 40.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb

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