Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 525 · 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? What do we do with “the length of the stem”? (a) we keep it the same (b) we measure it (c) we change it
2. 2.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
3. 3.⚖️ 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 room it stands in (d) the amount of water
4. 4.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it turns to plastic (c) it sinks at once (d) colour climbs up it
5. 5.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
6. 6.⚖️ 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
7. 7.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
8. 8.⚖️ 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 amount of colour (d) the length of the stem
9. 9.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
10. 10.True or false: a sugar cube lets water climb up it. (a) False (b) True
11. 11.True or false: a piece of chalk lets water climb up it. (a) True (b) False
12. 12.💧 Which of these does not let water climb? (a) a sugar cube (b) a glass marble (c) a paper towel (d) a cotton thread
13. 13.🛟 What should you do after handling food colour? (a) wipe them on walls (b) wash your hands (c) lick your fingers (d) rub your eyes
14. 14.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the flower floats away (c) the stem turns to ice (d) the petals turn bluish
15. 15.True or false: a glass of water is needed for the coloured flower experiment. (a) True (b) False
16. 16.True or false: food colour is not needed for the coloured flower experiment. (a) False (b) True
17. 17.⚖️ 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) True (b) False
18. 18.🔍 Which is the odd one out? (a) a paper towel (b) a sugar cube (c) a plastic ruler (d) a cotton thread
19. 19.🌼 Why do the petals keep pulling water up the stem? (a) petals lose water to air (b) petals like colour (c) petals are magnetic (d) the stem is hot
20. 20.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is kept the same. (a) False (b) True
21. 21.🧺 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) a few hours of waiting (d) a magnet
22. 22.🔍 Which is the odd one out? (a) a glass marble (b) a sugar cube (c) a rubber eraser (d) a steel spoon
23. 23.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a battery cell (c) a white flower (d) a glass of water
24. 24.🧺 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) food colour (d) a balloon
25. 25.True or false: food colour is needed for the coloured flower experiment. (a) True (b) False
26. 26.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a few hours of waiting (c) food colour (d) a magnet
27. 27.🧺 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
28. 28.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
29. 29.⚖️ 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
30. 30.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
31. 31.⚖️ 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 what we measure. (a) True (b) False
32. 32.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) yeast (c) a glass of water (d) a balloon
33. 33.💧 Which of these lets water climb up it? (a) a piece of foil (b) a rubber eraser (c) a piece of chalk (d) a plastic ruler
34. 34.🔍 Which is the odd one out? (a) a plastic ruler (b) a steel spoon (c) a strip of cloth (d) a glass marble
35. 35.⚖️ 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
36. 36.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) magnetism (c) capillary action (d) melting
37. 37.⚖️ 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
38. 38.🧺 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) yeast
39. 39.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
40. 40.True or false: a flower stem does not let water climb. (a) False (b) True

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