Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 536 · 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 lets water climb up it? (a) a steel spoon (b) a glass marble (c) a piece of foil (d) a piece of chalk
2. 2.⚖️ 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 the one thing we change. (a) True (b) False
3. 3.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) anyone, without looking (d) a grown-up
4. 4.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
5. 5.🌼 How does coloured water reach the petals? (a) through the air (b) it rains on them (c) it is sprayed on (d) through tiny stem tubes
6. 6.💧 Which of these does not let water climb? (a) a sugar cube (b) a strip of cloth (c) a piece of foil (d) a flower stem
7. 7.True or false: a flower stem does not let water climb. (a) True (b) False
8. 8.💧 Which of these does not let water climb? (a) a strip of cloth (b) a cotton thread (c) a rubber eraser (d) a sugar cube
9. 9.⚖️ 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
10. 10.🔍 Which is the odd one out? (a) a piece of foil (b) a piece of chalk (c) a rubber eraser (d) a glass marble
11. 11.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) turmeric powder (c) a magnet (d) food colour
12. 12.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
13. 13.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
14. 14.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
15. 15.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) a mirror (c) turmeric powder (d) a balloon
16. 16.🔍 Which is the odd one out? (a) a flower stem (b) a plastic ruler (c) a glass marble (d) a piece of foil
17. 17.🔮 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 turn two colours (c) they fall off at once (d) they all turn green
18. 18.True or false: a cotton thread does not let water climb. (a) True (b) False
19. 19.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a glass of water (c) a mirror (d) a white flower
20. 20.⚖️ 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) False (b) True
21. 21.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) a mirror (d) a white flower
22. 22.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
23. 23.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
24. 24.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
25. 25.🧺 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) turmeric powder (d) food colour
26. 26.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) a white flower (c) a glass of water (d) a few hours of waiting
27. 27.⚖️ 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 colour
28. 28.True or false: a piece of chalk does not let water climb. (a) True (b) False
29. 29.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) a glass marble (b) a steel spoon (c) a strip of cloth (d) a rubber eraser
31. 31.⚖️ 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
32. 32.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the flower floats away (c) the stem turns to ice (d) the water turns green
33. 33.🔍 Which is the odd one out? (a) a flower stem (b) a paper towel (c) a cotton thread (d) a plastic ruler
34. 34.True or false: a strip of cloth lets water climb up it. (a) False (b) True
35. 35.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) turmeric powder (c) a few hours of waiting (d) yeast
36. 36.⚖️ 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 measure it (c) we change it
37. 37.🔍 Which is the odd one out? (a) a rubber eraser (b) a sugar cube (c) a paper towel (d) a flower stem
38. 38.🛟 What should you do after handling food colour? (a) wipe them on walls (b) rub your eyes (c) lick your fingers (d) wash your hands
39. 39.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a few hours of waiting (c) a balloon (d) food colour
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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