Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 282 · 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) yeast (c) a few hours of waiting (d) a glass of water
2. 2.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
3. 3.⚖️ 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 measure it (c) we change it
4. 4.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the water turns green (c) the flower floats away (d) the petals turn bluish
5. 5.⚖️ 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
6. 6.💧 Which of these does not let water climb? (a) a piece of chalk (b) a paper towel (c) a piece of foil (d) a cotton thread
7. 7.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
8. 8.🔍 Which is the odd one out? (a) a piece of chalk (b) a steel spoon (c) a cotton thread (d) a paper towel
9. 9.💧 Which of these does not let water climb? (a) a sugar cube (b) a piece of chalk (c) a glass marble (d) a strip of cloth
10. 10.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a battery cell (d) a few hours of waiting
11. 11.🔍 Which is the odd one out? (a) a glass marble (b) a rubber eraser (c) a piece of foil (d) a paper towel
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a white flower (c) turmeric powder (d) a few hours of waiting
13. 13.⚖️ 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 keep it the same (c) we measure it
14. 14.⚖️ 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 room it stands in (b) the length of the stem (c) the amount of water (d) the kind of flower
15. 15.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) food colour (c) a few hours of waiting (d) a battery cell
16. 16.⚖️ 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) True (b) False
17. 17.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
18. 18.🔮 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
19. 19.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
20. 20.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
21. 21.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
22. 22.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) a grown-up (d) anyone, without looking
23. 23.⚖️ 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
24. 24.🛟 What should you do after handling food colour? (a) wipe them on walls (b) lick your fingers (c) rub your eyes (d) wash your hands
25. 25.🔍 Which is the odd one out? (a) a plastic ruler (b) a steel spoon (c) a rubber eraser (d) a sugar cube
26. 26.🔍 Which is the odd one out? (a) a cotton thread (b) a sugar cube (c) a plastic ruler (d) a paper towel
27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a mirror (c) a white flower (d) a glass of water
28. 28.⚖️ 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) the length of the stem (c) time for colour to show
29. 29.⚖️ 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) True (b) False
30. 30.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they fall off at once (b) they turn two colours (c) they all turn green (d) they stay white
31. 31.True or false: a sugar cube does not let water climb. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) a strip of cloth (b) a piece of foil (c) a rubber eraser (d) a plastic ruler
33. 33.🧺 Which of these is needed for the coloured flower experiment? (a) a few hours of waiting (b) a mirror (c) a magnet (d) yeast
34. 34.⚖️ 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 keep it the same (c) we change it
35. 35.💧 Which of these lets water climb up it? (a) a flower stem (b) a glass marble (c) a piece of foil (d) a plastic ruler
36. 36.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
37. 37.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
38. 38.⚖️ 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 keep it the same (c) we change it
39. 39.True or false: a paper towel lets water climb up it. (a) True (b) False
40. 40.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it

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