Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 289 · 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) the room it stands in (b) the length of the stem (c) the kind of flower (d) the amount of water
2. 2.True or false: a strip of cloth does not let water climb. (a) True (b) False
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a few hours of waiting (c) a white flower (d) a mirror
4. 4.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the stem turns blue (c) the petals turn red (d) the flower glows
5. 5.🧺 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) turmeric powder (d) a white flower
6. 6.🛟 What should you do after handling food colour? (a) rub your eyes (b) lick your fingers (c) wash your hands (d) wipe them on walls
7. 7.True or false: a glass marble lets water climb up it. (a) True (b) False
8. 8.⚖️ 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
9. 9.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
10. 10.True or false: a rubber eraser lets water climb up it. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) a cotton thread (b) a flower stem (c) a strip of cloth (d) a rubber eraser
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) yeast (c) a white flower (d) a glass of water
13. 13.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
14. 14.⚖️ 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) True (b) False
15. 15.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it sinks at once (c) colour climbs up it (d) it turns to plastic
16. 16.💧 Which of these lets water climb up it? (a) a glass marble (b) a piece of foil (c) a sugar cube (d) a steel spoon
17. 17.True or false: a white flower is needed for the coloured flower experiment. (a) True (b) False
18. 18.True or false: a plastic ruler lets water climb up it. (a) False (b) True
19. 19.💧 Which of these does not let water climb? (a) a sugar cube (b) a flower stem (c) a glass marble (d) a cotton thread
20. 20.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
21. 21.🔍 Which is the odd one out? (a) a glass marble (b) a sugar cube (c) a rubber eraser (d) a steel spoon
22. 22.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) a magnet (c) a balloon (d) turmeric powder
23. 23.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
24. 24.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) a battery cell (c) yeast (d) a magnet
25. 25.🧺 Which of these is not needed for the coloured flower experiment? (a) turmeric powder (b) a glass of water (c) a white flower (d) a few hours of waiting
26. 26.⚖️ 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 keep it the same (c) we change it
27. 27.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a balloon (c) a few hours of waiting (d) turmeric powder
28. 28.🔍 Which is the odd one out? (a) a sugar cube (b) a strip of cloth (c) a cotton thread (d) a piece of foil
29. 29.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) evaporation (c) magnetism (d) capillary action
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) time for colour to show (b) the amount of colour (c) the kind of flower (d) the room it stands in
31. 31.⚖️ 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
32. 32.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
33. 33.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
34. 34.True or false: a piece of chalk does not let water climb. (a) True (b) False
35. 35.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
36. 36.💧 Which of these lets water climb up it? (a) a glass marble (b) a flower stem (c) a plastic ruler (d) a rubber eraser
37. 37.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
38. 38.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
39. 39.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
40. 40.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed

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