Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 377 · 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 the one thing we change? (a) time for colour to show (b) the amount of colour (c) the kind of flower (d) the length of the stem
2. 2.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
3. 3.⚖️ 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 room it stands in (b) time for colour to show (c) the length of the stem
4. 4.💧 Which of these does not let water climb? (a) a steel spoon (b) a strip of cloth (c) a cotton thread (d) a paper towel
5. 5.⚖️ 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) False (b) True
6. 6.🛟 Who should trim the flower stem? (a) a grown-up (b) a pet (c) a toddler (d) anyone, without looking
7. 7.🧺 Which of these is not needed for the coloured flower experiment? (a) a battery cell (b) a glass of water (c) food colour (d) a few hours of waiting
8. 8.True or false: a steel spoon does not let water climb. (a) False (b) True
9. 9.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of colour”? (a) we change it (b) we keep it the same (c) we measure it
10. 10.🧺 Which of these is not needed for the coloured flower experiment? (a) a mirror (b) a white flower (c) a glass of water (d) food colour
11. 11.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
12. 12.⚖️ 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
13. 13.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
14. 14.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
15. 15.True or false: a cotton thread does not let water climb. (a) True (b) False
16. 16.💧 Which of these does not let water climb? (a) a paper towel (b) a sugar cube (c) a strip of cloth (d) a rubber eraser
17. 17.⚖️ 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 measure it (b) we change it (c) we keep it the same
18. 18.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a balloon (c) a white flower (d) a glass of water
19. 19.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) evaporation (c) melting (d) capillary action
20. 20.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a battery cell (c) food colour (d) a white flower
21. 21.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
22. 22.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) a battery cell (c) turmeric powder (d) a magnet
23. 23.🔍 Which is the odd one out? (a) a sugar cube (b) a steel spoon (c) a plastic ruler (d) a glass marble
24. 24.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they all turn green (c) they turn two colours (d) they fall off at once
25. 25.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is the one thing we change. (a) False (b) True
26. 26.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it turns to plastic (c) nothing ever happens (d) it sinks at once
27. 27.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
28. 28.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a balloon (c) a glass of water (d) a white flower
29. 29.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) True (b) False
30. 30.True or false: a glass marble lets water climb up it. (a) False (b) True
31. 31.🧺 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) turmeric powder (d) a few hours of waiting
32. 32.⚖️ 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 kind of flower (b) time for colour to show (c) the amount of colour (d) the amount of water
33. 33.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a mirror (c) a white flower (d) food colour
34. 34.⚖️ 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 measure it (b) we keep it the same (c) we change it
35. 35.🛟 What should you do after handling food colour? (a) wipe them on walls (b) wash your hands (c) rub your eyes (d) lick your fingers
36. 36.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
37. 37.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) through the air (c) it rains on them (d) it is sprayed on
38. 38.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
39. 39.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a few hours of waiting (c) a battery cell (d) a balloon
40. 40.⚖️ 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 the one thing we change. (a) False (b) True

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