Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 140 · 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.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
2. 2.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
3. 3.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
4. 4.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
5. 5.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the length of the stem”? (a) we keep it the same (b) we change it (c) we measure it
6. 6.🧺 Which of these is not needed for the coloured flower experiment? (a) a mirror (b) a few hours of waiting (c) a glass of water (d) food colour
7. 7.⚖️ 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 what we measure. (a) True (b) False
8. 8.True or false: a plastic ruler lets water climb up it. (a) True (b) False
9. 9.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
10. 10.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
11. 11.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a glass of water (c) food colour (d) yeast
12. 12.💧 Which of these does not let water climb? (a) a piece of chalk (b) a paper towel (c) a glass marble (d) a flower stem
13. 13.⚖️ 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) True (b) False
14. 14.🔍 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 water turns green (d) the stem turns to ice
15. 15.🧺 Which of these is needed for the coloured flower experiment? (a) a few hours of waiting (b) a battery cell (c) a magnet (d) turmeric powder
16. 16.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) a mirror (c) a magnet (d) turmeric powder
17. 17.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the stem turns blue (c) the flower glows (d) the petals turn red
18. 18.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
19. 19.💧 Which of these lets water climb up it? (a) a glass marble (b) a piece of foil (c) a cotton thread (d) a rubber eraser
20. 20.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) a glass marble (b) a paper towel (c) a piece of foil (d) a steel spoon
22. 22.True or false: a glass marble lets water climb up it. (a) False (b) True
23. 23.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a magnet (c) a battery cell (d) a glass of water
24. 24.⚖️ 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
25. 25.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
26. 26.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
27. 27.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
28. 28.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) turmeric powder (b) food colour (c) a few hours of waiting (d) a white flower
29. 29.🔍 Which is the odd one out? (a) a glass marble (b) a flower stem (c) a cotton thread (d) a strip of cloth
30. 30.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
31. 31.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a white flower (c) food colour (d) turmeric powder
32. 32.🔍 Which is the odd one out? (a) a plastic ruler (b) a glass marble (c) a steel spoon (d) a flower stem
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 room it stands in (c) the length of the stem
34. 34.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) yeast (d) a few hours of waiting
36. 36.🧺 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 glass of water (d) a battery cell
37. 37.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a white flower (c) food colour (d) a balloon
38. 38.🔍 Which is the odd one out? (a) a flower stem (b) a steel spoon (c) a paper towel (d) a piece of chalk
39. 39.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
40. 40.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) food colour (c) a magnet (d) a balloon

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