Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 878 · 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? True or false: time for colour to show is the one thing we change. (a) False (b) True
2. 2.💧 Which of these does not let water climb? (a) a flower stem (b) a strip of cloth (c) a piece of foil (d) a sugar cube
3. 3.🔮 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
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.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a pet (d) a grown-up
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 change it (b) we measure it (c) we keep it the same
7. 7.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
8. 8.🔍 Which is the odd one out? (a) a rubber eraser (b) a flower stem (c) a steel spoon (d) a glass marble
9. 9.🔮 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 turn two colours (c) they fall off at once (d) they stay white
10. 10.🔍 Which is the odd one out? (a) a strip of cloth (b) a cotton thread (c) a piece of foil (d) a flower stem
11. 11.⚖️ 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 measure it (b) we change it (c) we keep it the same
12. 12.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a glass marble (c) a plastic ruler (d) a piece of chalk
13. 13.⚖️ 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) True (b) False
14. 14.⚖️ 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) False (b) True
15. 15.🧺 Which of these is needed for the coloured flower experiment? (a) a few hours of waiting (b) a mirror (c) turmeric powder (d) a battery cell
16. 16.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
17. 17.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
18. 18.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a piece of foil (d) a cotton thread
19. 19.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
20. 20.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
21. 21.True or false: a piece of foil does not let water climb. (a) False (b) True
22. 22.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
23. 23.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) yeast (c) turmeric powder (d) a glass of water
24. 24.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals lose water to air (c) petals like colour (d) petals are magnetic
25. 25.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a steel spoon (c) a flower stem (d) a piece of foil
26. 26.True or false: a piece of chalk does not let water climb. (a) False (b) True
27. 27.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
28. 28.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
29. 29.🛟 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
30. 30.🔍 Which is the odd one out? (a) a glass marble (b) a sugar cube (c) a steel spoon (d) a piece of foil
31. 31.💧 Which of these does not let water climb? (a) a plastic ruler (b) a paper towel (c) a piece of chalk (d) a sugar cube
32. 32.True or false: a sugar cube does not let water climb. (a) True (b) False
33. 33.⚖️ 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 measure it (c) we keep it the same
34. 34.🧺 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) yeast (d) a white flower
35. 35.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a white flower (c) turmeric powder (d) a magnet
36. 36.True or false: a paper towel does not let water climb. (a) True (b) False
37. 37.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
38. 38.⚖️ 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
39. 39.⚖️ 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) False (b) True
40. 40.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb

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