Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 658 · 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) food colour (c) a glass of water (d) a battery cell
2. 2.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) a balloon (c) a magnet (d) a battery cell
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a magnet (d) a glass of water
4. 4.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) yeast (c) food colour (d) a white flower
5. 5.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
6. 6.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
7. 7.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
8. 8.🔍 Which is the odd one out? (a) a plastic ruler (b) a steel spoon (c) a cotton thread (d) a glass marble
9. 9.🛟 What should you do after handling food colour? (a) wipe them on walls (b) lick your fingers (c) wash your hands (d) rub your eyes
10. 10.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
11. 11.⚖️ 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 length of the stem (b) the room it stands in (c) the amount of colour (d) time for colour to show
12. 12.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) food colour (c) a white flower (d) a magnet
13. 13.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True
14. 14.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the stem turns to ice (c) the petals turn bluish (d) the flower floats away
15. 15.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a paper towel (c) a steel spoon (d) a glass marble
16. 16.💧 Which of these does not let water climb? (a) a paper towel (b) a strip of cloth (c) a cotton thread (d) a piece of foil
17. 17.True or false: a mirror is not needed for the coloured flower experiment. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a paper towel (d) a plastic ruler
19. 19.🔍 Which is the odd one out? (a) a flower stem (b) a strip of cloth (c) a paper towel (d) a rubber eraser
20. 20.💧 Which of these lets water climb up it? (a) a flower stem (b) a glass marble (c) a rubber eraser (d) a plastic ruler
21. 21.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
22. 22.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
23. 23.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
24. 24.🔍 Which is the odd one out? (a) a sugar cube (b) a glass marble (c) a cotton thread (d) a paper towel
25. 25.True or false: a cotton thread does not let water climb. (a) False (b) True
26. 26.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
27. 27.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) colour climbs up it (c) nothing ever happens (d) it sinks at once
28. 28.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
29. 29.True or false: a mirror is needed for the coloured flower experiment. (a) False (b) True
30. 30.True or false: a cotton thread lets water climb up it. (a) False (b) True
31. 31.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) it rains on them (c) through the air (d) through tiny stem tubes
32. 32.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
33. 33.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a balloon (c) a glass of water (d) food colour
34. 34.⚖️ 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) time for colour to show (c) the kind of flower
35. 35.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a white flower (c) food colour (d) a mirror
36. 36.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
37. 37.⚖️ 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 room it stands in (d) the kind of flower
38. 38.⚖️ 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
39. 39.🔍 Which is the odd one out? (a) a sugar cube (b) a strip of cloth (c) a plastic ruler (d) a paper towel
40. 40.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals are magnetic (c) petals like colour (d) petals lose water to air

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