Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 393 · 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? True or false: time for colour to show is the one thing we change. (a) False (b) True
2. 2.True or false: a mirror is not needed for the coloured flower experiment. (a) False (b) True
3. 3.⚖️ 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 amount of water (b) the room it stands in (c) the length of the stem (d) time for colour to show
4. 4.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) yeast (c) a magnet (d) turmeric powder
5. 5.True or false: a sugar cube does not let water climb. (a) False (b) True
6. 6.💧 Which of these lets water climb up it? (a) a piece of foil (b) a plastic ruler (c) a cotton thread (d) a steel spoon
7. 7.🧺 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 white flower (d) yeast
8. 8.🛟 Who should trim the flower stem? (a) a pet (b) a grown-up (c) anyone, without looking (d) a toddler
9. 9.🔍 Which is the odd one out? (a) a piece of chalk (b) a plastic ruler (c) a strip of cloth (d) a flower stem
10. 10.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False
11. 11.⚖️ 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 measure it (c) we change it
12. 12.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
13. 13.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is kept the same. (a) False (b) True
14. 14.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a few hours of waiting (c) a white flower (d) a battery cell
15. 15.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
16. 16.🔮 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
17. 17.🔍 Which is the odd one out? (a) a cotton thread (b) a glass marble (c) a piece of foil (d) a plastic ruler
18. 18.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
19. 19.💧 Which of these does not let water climb? (a) a strip of cloth (b) a piece of chalk (c) a plastic ruler (d) a sugar cube
20. 20.True or false: a white flower is needed for the coloured flower experiment. (a) True (b) False
21. 21.True or false: food colour is not needed for the coloured flower experiment. (a) False (b) True
22. 22.🌼 How does coloured water reach the petals? (a) it rains on them (b) through tiny stem tubes (c) it is sprayed on (d) through the air
23. 23.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
24. 24.💧 Which of these does not let water climb? (a) a steel spoon (b) a flower stem (c) a cotton thread (d) a paper towel
25. 25.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
26. 26.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a glass marble (c) a flower stem (d) a rubber eraser
27. 27.🧺 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
28. 28.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is what we measure. (a) True (b) False
29. 29.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) turmeric powder (c) a white flower (d) food colour
30. 30.💧 Which of these lets water climb up it? (a) a steel spoon (b) a plastic ruler (c) a sugar cube (d) a rubber eraser
31. 31.True or false: a sugar cube lets water climb up it. (a) True (b) False
32. 32.True or false: a mirror is needed for the coloured flower experiment. (a) False (b) True
33. 33.⚖️ 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 change it (b) we measure it (c) we keep it the same
34. 34.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) yeast (c) a glass of water (d) turmeric powder
35. 35.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
36. 36.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
37. 37.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
38. 38.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
39. 39.⚖️ 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) the length of the stem (c) the amount of colour (d) time for colour to show
40. 40.⚖️ 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 kind of flower (b) time for colour to show (c) the length of the stem

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