Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 776 · 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 kind of flower”? (a) we measure it (b) we keep it the same (c) we change it
2. 2.⚖️ 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
3. 3.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a battery cell (c) a white flower (d) food colour
4. 4.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is what we measure. (a) True (b) False
5. 5.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
6. 6.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals like colour (c) petals lose water to air (d) petals are magnetic
7. 7.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
8. 8.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it turns to plastic (c) nothing ever happens (d) it sinks at once
9. 9.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) food colour (c) a glass of water (d) turmeric powder
10. 10.⚖️ 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 keep it the same (b) we measure it (c) we change it
11. 11.🔍 Which is the odd one out? (a) a strip of cloth (b) a rubber eraser (c) a plastic ruler (d) a steel spoon
12. 12.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
13. 13.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a toddler (c) a pet (d) a grown-up
14. 14.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
15. 15.🛟 What should you do after handling food colour? (a) rub your eyes (b) wipe them on walls (c) lick your fingers (d) wash your hands
16. 16.True or false: a steel spoon does not let water climb. (a) False (b) True
17. 17.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they all turn green (b) they stay white (c) they fall off at once (d) they turn two colours
18. 18.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a battery cell (d) a glass of water
19. 19.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
20. 20.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
21. 21.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
22. 22.🧺 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 magnet
23. 23.🔍 Which is the odd one out? (a) a sugar cube (b) a strip of cloth (c) a steel spoon (d) a paper towel
24. 24.⚖️ 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 kind of flower (d) the length of the stem
25. 25.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a glass of water (c) a balloon (d) a magnet
26. 26.🧺 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) food colour (d) a mirror
27. 27.🔍 Which is the odd one out? (a) a plastic ruler (b) a cotton thread (c) a piece of foil (d) a steel spoon
28. 28.🔍 Which is the odd one out? (a) a strip of cloth (b) a flower stem (c) a piece of foil (d) a sugar cube
29. 29.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a plastic ruler (c) a sugar cube (d) a steel spoon
30. 30.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a few hours of waiting (c) yeast (d) a battery cell
31. 31.True or false: a flower stem lets water climb up it. (a) True (b) False
32. 32.🔍 Which is the odd one out? (a) a sugar cube (b) a strip of cloth (c) a paper towel (d) a glass marble
33. 33.🔍 Which is the odd one out? (a) a paper towel (b) a cotton thread (c) a rubber eraser (d) a flower stem
34. 34.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
35. 35.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is what we measure. (a) True (b) False
36. 36.🧺 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) food colour (d) turmeric powder
37. 37.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a magnet (c) a glass of water (d) a white flower
38. 38.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) yeast (d) a white flower
39. 39.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
40. 40.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “time for colour to show”? (a) we change it (b) we measure it (c) we keep it the same

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