Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 482 · 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.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) turmeric powder (c) a few hours of waiting (d) a glass of water
2. 2.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is the one thing we change. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) a cotton thread (b) a sugar cube (c) a plastic ruler (d) a flower stem
4. 4.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
5. 5.⚖️ 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 colour (b) the room it stands in (c) the amount of water (d) the length of the stem
6. 6.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) nothing ever happens (c) it sinks at once (d) it turns to plastic
7. 7.⚖️ 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
8. 8.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a magnet (c) a white flower (d) a few hours of waiting
9. 9.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
10. 10.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a mirror (c) turmeric powder (d) a glass of water
11. 11.True or false: a glass marble lets water climb up it. (a) True (b) False
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) a few hours of waiting (c) a glass of water (d) a white flower
13. 13.🔮 What would change if the flower stood in plain water? (a) the stem turns blue (b) no colour change (c) the petals turn red (d) the flower glows
14. 14.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the water turns green (c) the petals turn bluish (d) the flower floats away
15. 15.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) food colour (c) a mirror (d) a glass of water
16. 16.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) food colour (c) a balloon (d) yeast
17. 17.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
18. 18.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is what we measure. (a) False (b) True
19. 19.🧺 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 white flower (d) a battery cell
20. 20.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
21. 21.⚖️ 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 change it (b) we keep it the same (c) we measure it
22. 22.🔍 Which is the odd one out? (a) a piece of foil (b) a plastic ruler (c) a rubber eraser (d) a cotton thread
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) turmeric powder (d) a few hours of waiting
24. 24.True or false: a strip of cloth lets water climb up it. (a) False (b) True
25. 25.True or false: a paper towel does not let water climb. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of chalk (c) a strip of cloth (d) a flower stem
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 length of the stem (b) the kind of flower (c) time for colour to show
28. 28.True or false: a steel spoon does not let water climb. (a) False (b) True
29. 29.⚖️ 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 measure it (c) we keep it the same
30. 30.⚖️ 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 amount of colour (b) time for colour to show (c) the amount of water (d) the length of the stem
31. 31.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
32. 32.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) turmeric powder (c) a magnet (d) a balloon
33. 33.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a steel spoon (c) a piece of foil (d) a cotton thread
34. 34.💧 Which of these lets water climb up it? (a) a piece of foil (b) a rubber eraser (c) a steel spoon (d) a sugar cube
35. 35.💧 Which of these does not let water climb? (a) a piece of foil (b) a piece of chalk (c) a sugar cube (d) a strip of cloth
36. 36.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) evaporation (c) magnetism (d) capillary action
37. 37.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) it rains on them (c) through tiny stem tubes (d) through the air
38. 38.🔍 Which is the odd one out? (a) a rubber eraser (b) a piece of chalk (c) a cotton thread (d) a sugar cube
39. 39.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a magnet (c) turmeric powder (d) a few hours of waiting
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 kept the same. (a) True (b) False

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