Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 890 · 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.⚖️ 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 length of the stem (b) the room it stands in (c) the amount of colour (d) the kind of flower
2. 2.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) it turns to plastic (c) nothing ever happens (d) colour climbs up it
3. 3.True or false: yeast is not needed for the coloured flower experiment. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) a flower stem (b) a paper towel (c) a cotton thread (d) a plastic ruler
5. 5.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
6. 6.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a mirror (c) food colour (d) a few hours of waiting
7. 7.⚖️ 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
8. 8.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a plastic ruler (d) a flower stem
9. 9.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a white flower (c) a battery cell (d) a glass of water
10. 10.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) True (b) False
11. 11.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
12. 12.True or false: a steel spoon does not let water climb. (a) True (b) False
13. 13.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the petals turn bluish (c) the stem turns to ice (d) the water turns green
14. 14.🧺 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 balloon (d) a glass of water
15. 15.🔍 Which is the odd one out? (a) a paper towel (b) a flower stem (c) a piece of chalk (d) a steel spoon
16. 16.⚖️ 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 room it stands in (b) time for colour to show (c) the amount of colour (d) the amount of water
17. 17.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wipe them on walls (d) wash your hands
18. 18.True or false: a plastic ruler does not let water climb. (a) True (b) False
19. 19.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) False (b) True
20. 20.🧺 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 glass of water (d) yeast
21. 21.💧 Which of these does not let water climb? (a) a sugar cube (b) a strip of cloth (c) a piece of foil (d) a paper towel
22. 22.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a glass of water (d) a mirror
23. 23.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
24. 24.💧 Dip a steel spoon 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) food colour (b) turmeric powder (c) a white flower (d) a glass of water
26. 26.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
27. 27.True or false: a flower stem does not let water climb. (a) True (b) False
28. 28.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
29. 29.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a piece of foil (c) a cotton thread (d) a steel spoon
30. 30.💧 Which of these does not let water climb? (a) a plastic ruler (b) a sugar cube (c) a flower stem (d) a piece of chalk
31. 31.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a white flower (c) a magnet (d) a battery cell
32. 32.🔍 Which is the odd one out? (a) a plastic ruler (b) a cotton thread (c) a glass marble (d) a steel spoon
33. 33.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
34. 34.🔍 Which is the odd one out? (a) a glass marble (b) a flower stem (c) a sugar cube (d) a cotton thread
35. 35.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
36. 36.True or false: a white flower is needed for the coloured flower experiment. (a) True (b) False
37. 37.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
38. 38.⚖️ 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 measure it (b) we change it (c) we keep it the same
39. 39.True or false: a paper towel lets water climb up it. (a) True (b) False
40. 40.🧺 Which of these is not needed for the coloured flower experiment? (a) a balloon (b) food colour (c) a glass of water (d) a white flower

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