Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 803 · 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.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
2. 2.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
3. 3.True or false: a magnet is needed for the coloured flower experiment. (a) False (b) True
4. 4.True or false: a rubber eraser lets water climb up it. (a) True (b) False
5. 5.🔮 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
6. 6.⚖️ 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 change it (b) we keep it the same (c) we measure it
7. 7.⚖️ 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 what we measure. (a) True (b) False
8. 8.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
9. 9.⚖️ 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) True (b) False
10. 10.🧺 Which of these is not needed for the coloured flower experiment? (a) a balloon (b) a glass of water (c) food colour (d) a few hours of waiting
11. 11.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) a white flower (d) a mirror
12. 12.🛟 What should you do after handling food colour? (a) wash your hands (b) rub your eyes (c) wipe them on walls (d) lick your fingers
13. 13.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
14. 14.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
15. 15.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a magnet (c) yeast (d) a white flower
16. 16.🔍 Which is the odd one out? (a) a strip of cloth (b) a cotton thread (c) a piece of chalk (d) a piece of foil
17. 17.True or false: a plastic ruler lets water climb up it. (a) False (b) True
18. 18.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) no colour change (c) the stem turns blue (d) the petals turn red
19. 19.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
20. 20.True or false: a strip of cloth does not let water climb. (a) True (b) False
21. 21.⚖️ 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
22. 22.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
23. 23.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
24. 24.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
25. 25.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) a glass of water (c) a few hours of waiting (d) food colour
26. 26.⚖️ 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 amount of colour (b) time for colour to show (c) the length of the stem
27. 27.🔍 Which is the odd one out? (a) a glass marble (b) a piece of chalk (c) a cotton thread (d) a sugar cube
28. 28.💧 Which of these lets water climb up it? (a) a steel spoon (b) a piece of foil (c) a glass marble (d) a paper towel
29. 29.⚖️ 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
30. 30.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) petals are magnetic (c) the stem is hot (d) petals lose water to air
31. 31.True or false: a white flower is not needed for the coloured flower experiment. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) a sugar cube (b) a steel spoon (c) a strip of cloth (d) a paper towel
33. 33.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) turmeric powder (c) a few hours of waiting (d) a white flower
34. 34.💧 Which of these lets water climb up it? (a) a piece of foil (b) a rubber eraser (c) a plastic ruler (d) a flower stem
35. 35.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
36. 36.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) a white flower (d) a magnet
37. 37.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) capillary action (c) melting (d) evaporation
38. 38.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
39. 39.🧺 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) a balloon (d) food colour
40. 40.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb

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