Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 228 · 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: the room it stands in is kept the same. (a) False (b) True
2. 2.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through the air (c) it rains on them (d) through tiny stem tubes
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) the kind of flower
4. 4.⚖️ 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
5. 5.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
6. 6.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
7. 7.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a magnet (c) food colour (d) a few hours of waiting
8. 8.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
9. 9.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) food colour (c) a balloon (d) a mirror
10. 10.True or false: yeast is not needed for the coloured flower experiment. (a) False (b) True
11. 11.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
12. 12.💧 Which of these does not let water climb? (a) a strip of cloth (b) a paper towel (c) a sugar cube (d) a rubber eraser
13. 13.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a pet (d) a grown-up
14. 14.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a few hours of waiting (c) a battery cell (d) a mirror
15. 15.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) food colour (c) a few hours of waiting (d) a mirror
16. 16.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
17. 17.🔍 Which is the odd one out? (a) a plastic ruler (b) a glass marble (c) a steel spoon (d) a flower stem
18. 18.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
19. 19.True or false: a plastic ruler does not let water climb. (a) True (b) False
20. 20.💧 Which of these lets water climb up it? (a) a piece of foil (b) a plastic ruler (c) a steel spoon (d) a cotton thread
21. 21.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False
22. 22.🧺 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
23. 23.⚖️ 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 measure it (c) we change it
24. 24.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
25. 25.⚖️ 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 measure it (b) we keep it the same (c) we change it
26. 26.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
27. 27.⚖️ 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) the length of the stem (c) time for colour to show
28. 28.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
29. 29.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
30. 30.🧺 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 balloon (d) food colour
31. 31.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the petals turn bluish (c) the stem turns to ice (d) the flower floats away
32. 32.💧 Which of these lets water climb up it? (a) a steel spoon (b) a plastic ruler (c) a rubber eraser (d) a strip of cloth
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.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they all turn green (b) they turn two colours (c) they stay white (d) they fall off at once
35. 35.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a glass of water (c) turmeric powder (d) yeast
36. 36.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a plastic ruler (c) a piece of foil (d) a piece of chalk
37. 37.🧺 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 magnet (d) a few hours of waiting
38. 38.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
39. 39.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) a white flower (c) a few hours of waiting (d) food colour
40. 40.⚖️ 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 the one thing we change. (a) True (b) False

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