Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 560 · 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 rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
2. 2.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
3. 3.⚖️ 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 change it (b) we measure it (c) we keep it the same
4. 4.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
5. 5.🔍 Which is the odd one out? (a) a piece of chalk (b) a glass marble (c) a piece of foil (d) a plastic ruler
6. 6.🔍 Which is the odd one out? (a) a flower stem (b) a cotton thread (c) a rubber eraser (d) a piece of chalk
7. 7.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) food colour (c) a white flower (d) a glass of water
8. 8.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) the stem is hot (c) petals are magnetic (d) petals lose water to air
9. 9.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) yeast (c) a magnet (d) a few hours of waiting
10. 10.🔍 Which is the odd one out? (a) a paper towel (b) a piece of foil (c) a piece of chalk (d) a cotton thread
11. 11.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they fall off at once (c) they all turn green (d) they turn two colours
12. 12.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
13. 13.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
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) False (b) True
15. 15.💧 Which of these lets water climb up it? (a) a steel spoon (b) a piece of foil (c) a paper towel (d) a glass marble
16. 16.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) it rains on them (c) through the air (d) it is sprayed on
17. 17.True or false: a sugar cube lets water climb up it. (a) True (b) False
18. 18.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a piece of foil (d) a cotton thread
19. 19.🛟 Who should trim the flower stem? (a) a toddler (b) a grown-up (c) a pet (d) anyone, without looking
20. 20.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
21. 21.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a few hours of waiting (c) a white flower (d) a glass of water
22. 22.🛟 What should you do after handling food colour? (a) lick your fingers (b) wipe them on walls (c) wash your hands (d) rub your eyes
23. 23.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
24. 24.⚖️ 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 change it (c) we keep it the same
25. 25.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
26. 26.⚖️ 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 room it stands in (d) time for colour to show
27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) a balloon (d) a white flower
28. 28.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a glass of water (c) yeast (d) turmeric powder
29. 29.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is kept the same. (a) False (b) True
30. 30.⚖️ 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 the one thing we change. (a) True (b) False
31. 31.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) False (b) True
32. 32.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it sinks at once (c) colour climbs up it (d) it turns to plastic
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) time for colour to show (b) the length of the stem (c) the amount of water
34. 34.⚖️ 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 what we measure. (a) False (b) True
35. 35.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
36. 36.🔮 What would change if the flower stood in plain water? (a) the stem turns blue (b) the flower glows (c) the petals turn red (d) no colour change
37. 37.🔍 Which is the odd one out? (a) a strip of cloth (b) a piece of chalk (c) a sugar cube (d) a steel spoon
38. 38.🔍 Which is the odd one out? (a) a cotton thread (b) a glass marble (c) a flower stem (d) a paper towel
39. 39.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
40. 40.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the water turns green (c) the stem turns to ice (d) the petals turn bluish

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