Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 579 · 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 what we measure? (a) the amount of colour (b) the length of the stem (c) the kind of flower (d) time for colour to show
2. 2.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
3. 3.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
4. 4.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
5. 5.⚖️ 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 change it (b) we measure it (c) we keep it the same
6. 6.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
7. 7.True or false: a rubber eraser does not let water climb. (a) False (b) True
8. 8.🧺 Which of these is not needed for the coloured flower experiment? (a) yeast (b) a white flower (c) a glass of water (d) food colour
9. 9.🧺 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) a few hours of waiting (d) turmeric powder
10. 10.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
11. 11.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) colour climbs up it (c) it turns to plastic (d) it sinks at once
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) a few hours of waiting (c) a white flower (d) a glass of water
13. 13.True or false: turmeric powder is needed for the coloured flower experiment. (a) False (b) True
14. 14.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a battery cell (c) a white flower (d) a balloon
15. 15.⚖️ 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 kind of flower
16. 16.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
17. 17.True or false: a white flower is not needed for the coloured flower experiment. (a) False (b) True
18. 18.True or false: a rubber eraser lets water climb up it. (a) False (b) True
19. 19.True or false: a flower stem lets water climb up it. (a) False (b) True
20. 20.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a few hours of waiting (c) a balloon (d) a magnet
21. 21.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a piece of foil (d) a flower stem
22. 22.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
23. 23.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a magnet (c) a glass of water (d) a few hours of waiting
24. 24.🧺 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
25. 25.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) food colour (c) a mirror (d) a few hours of waiting
26. 26.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
27. 27.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) food colour (c) turmeric powder (d) a glass of water
28. 28.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a mirror (d) a glass of water
29. 29.💧 Which of these does not let water climb? (a) a paper towel (b) a sugar cube (c) a plastic ruler (d) a cotton thread
30. 30.🛟 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
31. 31.🔮 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 stay white (c) they turn two colours (d) they all turn green
32. 32.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
33. 33.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the stem turns blue (c) no colour change (d) the petals turn red
34. 34.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a battery cell (c) a glass of water (d) food colour
36. 36.⚖️ 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) the amount of water (c) time for colour to show
37. 37.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a balloon (c) food colour (d) a mirror
38. 38.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
39. 39.⚖️ 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 keep it the same (b) we measure it (c) we change it
40. 40.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is the one thing we change. (a) False (b) True

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