Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 511 · 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) food colour (b) a white flower (c) a magnet (d) a glass of water
2. 2.🧺 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 white flower (d) a mirror
3. 3.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is the one thing we change. (a) True (b) False
4. 4.⚖️ 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 keep it the same (c) we measure it
5. 5.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
6. 6.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) turmeric powder (d) a glass of water
7. 7.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
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.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) it sinks at once (c) colour climbs up it (d) nothing ever happens
10. 10.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) yeast (c) a mirror (d) a magnet
11. 11.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
12. 12.🛟 Who should trim the flower stem? (a) a pet (b) a toddler (c) anyone, without looking (d) a grown-up
13. 13.🔍 Which is the odd one out? (a) a sugar cube (b) a cotton thread (c) a strip of cloth (d) a steel spoon
14. 14.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
15. 15.🔍 Which is the odd one out? (a) a sugar cube (b) a plastic ruler (c) a strip of cloth (d) a flower stem
16. 16.⚖️ 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 kept the same. (a) False (b) True
17. 17.⚖️ 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
18. 18.💧 Which of these does not let water climb? (a) a plastic ruler (b) a strip of cloth (c) a piece of chalk (d) a sugar cube
19. 19.True or false: a paper towel does not let water climb. (a) True (b) False
20. 20.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
21. 21.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
22. 22.🛟 What should you do after handling food colour? (a) wash your hands (b) lick your fingers (c) wipe them on walls (d) rub your eyes
23. 23.True or false: a sugar cube lets water climb up it. (a) True (b) False
24. 24.True or false: a glass marble does not let water climb. (a) False (b) True
25. 25.⚖️ 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 what we measure. (a) True (b) False
26. 26.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) a white flower (c) food colour (d) a glass of water
27. 27.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a flower stem (c) a piece of foil (d) a glass marble
28. 28.🧺 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 magnet (d) food colour
29. 29.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
30. 30.True or false: a strip of cloth does not let water climb. (a) True (b) False
31. 31.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a glass of water (c) a white flower (d) a few hours of waiting
32. 32.🔍 Which is the odd one out? (a) a plastic ruler (b) a steel spoon (c) a cotton thread (d) a piece of foil
33. 33.⚖️ 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 kind of flower
34. 34.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals lose water to air (c) petals like colour (d) petals are magnetic
35. 35.⚖️ 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 length of the stem (c) the room it stands in (d) the amount of colour
36. 36.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
37. 37.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is what we measure. (a) True (b) False
38. 38.🌼 How does coloured water reach the petals? (a) through the air (b) through tiny stem tubes (c) it rains on them (d) it is sprayed on
39. 39.⚖️ 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
40. 40.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) a mirror (c) a balloon (d) yeast

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