Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 162 · 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.🔍 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
2. 2.True or false: a strip of cloth does not let water climb. (a) True (b) False
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) a mirror (d) a few hours of waiting
4. 4.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
5. 5.🔮 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 all turn green (c) they stay white (d) they turn two colours
6. 6.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) turmeric powder (c) a white flower (d) a few hours of waiting
7. 7.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
8. 8.🔮 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
9. 9.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a toddler (c) a grown-up (d) a pet
10. 10.⚖️ 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
11. 11.🔍 Which is the odd one out? (a) a plastic ruler (b) a strip of cloth (c) a glass marble (d) a piece of foil
12. 12.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a piece of chalk (d) a piece of foil
13. 13.💧 Which of these does not let water climb? (a) a flower stem (b) a piece of foil (c) a piece of chalk (d) a sugar cube
14. 14.⚖️ 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
15. 15.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of foil (c) a cotton thread (d) a rubber eraser
16. 16.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a steel spoon (c) a strip of cloth (d) a plastic ruler
17. 17.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) turmeric powder (c) a battery cell (d) a balloon
18. 18.💧 Which of these lets water climb up it? (a) a piece of foil (b) a sugar cube (c) a steel spoon (d) a glass marble
19. 19.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
20. 20.⚖️ 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 amount of colour (c) the length of the stem
21. 21.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
22. 22.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a battery cell (c) turmeric powder (d) a glass of water
23. 23.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
24. 24.⚖️ 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 amount of water
25. 25.True or false: a cotton thread does not let water climb. (a) False (b) True
26. 26.True or false: a rubber eraser lets water climb up it. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) a plastic ruler (b) a paper towel (c) a rubber eraser (d) a glass marble
28. 28.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
29. 29.🌼 How does coloured water reach the petals? (a) it rains on them (b) through tiny stem tubes (c) it is sprayed on (d) through the air
30. 30.⚖️ 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 keep it the same (b) we change it (c) we measure it
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 amount of colour (b) time for colour to show (c) the room it stands in (d) the length of the stem
32. 32.True or false: a piece of foil lets water climb up it. (a) True (b) False
33. 33.⚖️ 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
34. 34.💧 Which of these lets water climb up it? (a) a steel spoon (b) a glass marble (c) a plastic ruler (d) a paper towel
35. 35.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) colour climbs up it (c) it sinks at once (d) nothing ever happens
36. 36.⚖️ 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) False (b) True
37. 37.True or false: a paper towel lets water climb up it. (a) False (b) True
38. 38.💧 Which of these does not let water climb? (a) a piece of chalk (b) a strip of cloth (c) a glass marble (d) a sugar cube
39. 39.🧺 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 white flower (d) a battery cell
40. 40.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) a magnet (d) a glass of water

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