Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 380 · 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.True or false: a cotton thread lets water climb up it. (a) False (b) True
2. 2.🛟 What should you do after handling food colour? (a) rub your eyes (b) wipe them on walls (c) wash your hands (d) lick your fingers
3. 3.💧 Which of these lets water climb up it? (a) a steel spoon (b) a rubber eraser (c) a glass marble (d) a paper towel
4. 4.True or false: a glass marble does not let water climb. (a) False (b) True
5. 5.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) evaporation (c) magnetism (d) capillary action
6. 6.💧 Which of these lets water climb up it? (a) a steel spoon (b) a glass marble (c) a piece of foil (d) a piece of chalk
7. 7.⚖️ 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 kept the same. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) a plastic ruler (b) a glass marble (c) a paper towel (d) a rubber eraser
9. 9.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True
10. 10.⚖️ 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
11. 11.💧 Which of these does not let water climb? (a) a cotton thread (b) a paper towel (c) a sugar cube (d) a piece of foil
12. 12.⚖️ 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 length of the stem (c) the room it stands in (d) the kind of flower
13. 13.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
14. 14.🧺 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 battery cell (d) a few hours of waiting
15. 15.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) turmeric powder (b) food colour (c) a glass of water (d) a white flower
16. 16.🔍 Which is the odd one out? (a) a paper towel (b) a piece of foil (c) a cotton thread (d) a piece of chalk
17. 17.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
18. 18.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a white flower (c) a battery cell (d) food colour
19. 19.True or false: a glass marble lets water climb up it. (a) True (b) False
20. 20.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
21. 21.🔍 Which is the odd one out? (a) a sugar cube (b) a steel spoon (c) a flower stem (d) a piece of chalk
22. 22.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
23. 23.⚖️ 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) False (b) True
24. 24.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) a white flower (c) a glass of water (d) a few hours of waiting
25. 25.⚖️ 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
26. 26.True or false: a flower stem does not let water climb. (a) True (b) False
27. 27.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
28. 28.🧺 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 magnet
29. 29.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
30. 30.True or false: a strip of cloth does not let water climb. (a) True (b) False
31. 31.⚖️ 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
32. 32.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
33. 33.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the water turns green (c) the stem turns to ice (d) the petals turn bluish
34. 34.True or false: a magnet is not needed for the coloured flower experiment. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a glass marble (d) a piece of chalk
36. 36.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) colour climbs up it (c) it turns to plastic (d) nothing ever happens
37. 37.💧 Which of these lets water climb up it? (a) a piece of foil (b) a flower stem (c) a plastic ruler (d) a steel spoon
38. 38.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is the one thing we change. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) a rubber eraser (b) a plastic ruler (c) a glass marble (d) a strip of cloth
40. 40.⚖️ 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 measure it (b) we keep it the same (c) we change it

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