Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 833 · 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 few hours of waiting is not needed for the coloured flower experiment. (a) True (b) False
2. 2.True or false: a glass marble lets water climb up it. (a) False (b) True
3. 3.🧺 Which of these is not needed for the coloured flower experiment? (a) a balloon (b) a glass of water (c) a white flower (d) a few hours of waiting
4. 4.⚖️ 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 length of the stem (b) the room it stands in (c) the amount of colour (d) time for colour to show
5. 5.🛟 What should you do after handling food colour? (a) lick your fingers (b) wash your hands (c) rub your eyes (d) wipe them on walls
6. 6.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
7. 7.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) a few hours of waiting (d) turmeric powder
8. 8.💧 Which of these does not let water climb? (a) a piece of chalk (b) a paper towel (c) a rubber eraser (d) a cotton thread
9. 9.🔍 Which is the odd one out? (a) a plastic ruler (b) a cotton thread (c) a rubber eraser (d) a glass marble
10. 10.🔍 Which is the odd one out? (a) a plastic ruler (b) a steel spoon (c) a strip of cloth (d) a glass marble
11. 11.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the stem turns blue (c) the petals turn red (d) no colour change
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a balloon (c) food colour (d) a few hours of waiting
13. 13.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
14. 14.True or false: a strip of cloth does not let water climb. (a) True (b) False
15. 15.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) food colour (c) a battery cell (d) a glass of water
16. 16.⚖️ 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
17. 17.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
18. 18.🔮 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
19. 19.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) a battery cell (c) a magnet (d) a balloon
20. 20.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
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) time for colour to show (b) the kind of flower (c) the length of the stem
22. 22.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the petals turn bluish (c) the stem turns to ice (d) the water turns green
23. 23.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
24. 24.⚖️ 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
25. 25.⚖️ 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
26. 26.True or false: a sugar cube does not let water climb. (a) True (b) False
27. 27.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
28. 28.💧 Which of these lets water climb up it? (a) a glass marble (b) a paper towel (c) a plastic ruler (d) a steel spoon
29. 29.⚖️ 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 keep it the same (b) we change it (c) we measure it
30. 30.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
31. 31.⚖️ 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 measure it (b) we change it (c) we keep it the same
32. 32.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) a glass of water (c) food colour (d) a white flower
33. 33.🧺 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 white flower (d) a magnet
34. 34.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
35. 35.⚖️ 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 kind of flower (b) time for colour to show (c) the length of the stem (d) the amount of colour
36. 36.⚖️ 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 the one thing we change. (a) False (b) True
37. 37.⚖️ 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 change it (b) we keep it the same (c) we measure it
38. 38.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
39. 39.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
40. 40.💧 Which of these does not let water climb? (a) a sugar cube (b) a plastic ruler (c) a paper towel (d) a cotton thread

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