Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 938 · 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 strip of cloth does not let water climb. (a) True (b) False
2. 2.🛟 What should you do after handling food colour? (a) rub your eyes (b) wash your hands (c) lick your fingers (d) wipe them on walls
3. 3.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
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 amount of water (b) the amount of colour (c) the room it stands in (d) time for colour to show
5. 5.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a pet (d) a grown-up
6. 6.💧 Which of these lets water climb up it? (a) a steel spoon (b) a sugar cube (c) a rubber eraser (d) a piece of foil
7. 7.True or false: a rubber eraser lets water climb up it. (a) True (b) False
8. 8.🔍 Which is the odd one out? (a) a plastic ruler (b) a steel spoon (c) a piece of chalk (d) a piece of foil
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) False (b) True
10. 10.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) colour climbs up it (c) nothing ever happens (d) it turns to plastic
11. 11.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
12. 12.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) a mirror (c) turmeric powder (d) a balloon
13. 13.💧 Dip a flower stem 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 cotton thread does not let water climb. (a) False (b) True
15. 15.💧 Which of these does not let water climb? (a) a paper towel (b) a flower stem (c) a rubber eraser (d) a sugar cube
16. 16.⚖️ 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 what we measure. (a) True (b) False
17. 17.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a white flower (c) food colour (d) a mirror
18. 18.💧 Which of these does not let water climb? (a) a piece of chalk (b) a steel spoon (c) a strip of cloth (d) a sugar cube
19. 19.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
20. 20.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a few hours of waiting (c) a balloon (d) food colour
21. 21.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a steel spoon (d) a piece of chalk
22. 22.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a white flower (c) a few hours of waiting (d) food colour
23. 23.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they fall off at once (b) they turn two colours (c) they all turn green (d) they stay white
24. 24.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) a battery cell (c) a balloon (d) a mirror
25. 25.💧 Which of these does not let water climb? (a) a cotton thread (b) a strip of cloth (c) a flower stem (d) a glass marble
26. 26.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
27. 27.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
28. 28.⚖️ 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
29. 29.⚖️ 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
30. 30.⚖️ 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 measure it (c) we keep it the same
31. 31.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) yeast (c) turmeric powder (d) a few hours of waiting
32. 32.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
33. 33.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
34. 34.True or false: a piece of foil does not let water climb. (a) True (b) False
35. 35.⚖️ 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
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) a white flower (d) turmeric powder
37. 37.🔍 Which is the odd one out? (a) a steel spoon (b) a plastic ruler (c) a piece of foil (d) a strip of cloth
38. 38.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True
39. 39.💧 Which of these does not let water climb? (a) a plastic ruler (b) a flower stem (c) a paper towel (d) a sugar cube
40. 40.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False

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