Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 549 · 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: turmeric powder is needed for the coloured flower experiment. (a) False (b) True
2. 2.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a magnet (c) a balloon (d) food colour
3. 3.True or false: a sugar cube does not let water climb. (a) True (b) False
4. 4.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a pet (c) a grown-up (d) a toddler
5. 5.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a steel spoon (c) a rubber eraser (d) a strip of cloth
6. 6.⚖️ 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
7. 7.True or false: a glass of water is needed for the coloured flower experiment. (a) True (b) False
8. 8.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a battery cell (c) a glass of water (d) a white flower
9. 9.🔍 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 water turns green (d) the stem turns to ice
10. 10.True or false: food colour is needed for the coloured flower experiment. (a) True (b) False
11. 11.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
12. 12.⚖️ 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) time for colour to show (c) the room it stands in (d) the amount of water
13. 13.True or false: a battery cell 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 few hours of waiting (b) yeast (c) a balloon (d) a magnet
15. 15.True or false: a piece of foil does not let water climb. (a) False (b) True
16. 16.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a mirror (c) a few hours of waiting (d) a white flower
17. 17.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
18. 18.🧺 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 few hours of waiting (d) a battery cell
19. 19.🌼 How does coloured water reach the petals? (a) through the air (b) it is sprayed on (c) it rains on them (d) through tiny stem tubes
20. 20.🔍 Which is the odd one out? (a) a cotton thread (b) a paper towel (c) a rubber eraser (d) a strip of cloth
21. 21.True or false: a cotton thread does not let water climb. (a) False (b) True
22. 22.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
23. 23.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a white flower (c) food colour (d) a balloon
24. 24.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
25. 25.⚖️ 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) True (b) False
26. 26.True or false: a battery cell is not needed for the coloured flower experiment. (a) False (b) True
27. 27.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
28. 28.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
29. 29.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a battery cell (c) turmeric powder (d) a white flower
30. 30.🔍 Which is the odd one out? (a) a steel spoon (b) a plastic ruler (c) a strip of cloth (d) a rubber eraser
31. 31.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a white flower (c) yeast (d) a glass of water
32. 32.True or false: a strip of cloth lets water climb up it. (a) False (b) True
33. 33.🛟 What should you do after handling food colour? (a) lick your fingers (b) wash your hands (c) wipe them on walls (d) rub your eyes
34. 34.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they turn two colours (b) they stay white (c) they all turn green (d) they fall off at once
35. 35.⚖️ 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 change it (c) we measure it
36. 36.⚖️ 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) False (b) True
37. 37.⚖️ 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 keep it the same (b) we change it (c) we measure it
38. 38.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a few hours of waiting (c) a glass of water (d) a mirror
39. 39.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
40. 40.True or false: a balloon is needed for the coloured flower experiment. (a) False (b) True

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