Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 611 · 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 needed for the coloured flower experiment? (a) a mirror (b) a few hours of waiting (c) yeast (d) a magnet
2. 2.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
3. 3.⚖️ 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) True (b) False
4. 4.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
5. 5.🛟 Who should trim the flower stem? (a) a pet (b) a grown-up (c) a toddler (d) anyone, without looking
6. 6.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of colour”? (a) we measure it (b) we keep it the same (c) we change it
7. 7.⚖️ 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 room it stands in (b) time for colour to show (c) the amount of water (d) the length of the stem
8. 8.🔍 Which is the odd one out? (a) a steel spoon (b) a plastic ruler (c) a strip of cloth (d) a rubber eraser
9. 9.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) colour climbs up it (c) it turns to plastic (d) it sinks at once
10. 10.🛟 What should you do after handling food colour? (a) wash your hands (b) rub your eyes (c) lick your fingers (d) wipe them on walls
11. 11.True or false: a piece of chalk lets water climb up it. (a) False (b) True
12. 12.💧 Which of these lets water climb up it? (a) a steel spoon (b) a paper towel (c) a plastic ruler (d) a piece of foil
13. 13.💧 Which of these does not let water climb? (a) a steel spoon (b) a cotton thread (c) a paper towel (d) a sugar cube
14. 14.⚖️ 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 colour (b) the room it stands in (c) the kind of flower (d) time for colour to show
15. 15.🔍 Which is the odd one out? (a) a strip of cloth (b) a flower stem (c) a piece of chalk (d) a piece of foil
16. 16.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
17. 17.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
18. 18.⚖️ 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 keep it the same (c) we measure it
19. 19.🔮 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 stay white (d) they fall off at once
20. 20.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
21. 21.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) turmeric powder (c) food colour (d) a magnet
22. 22.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a mirror (d) a glass of water
23. 23.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
24. 24.⚖️ 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) False (b) True
25. 25.True or false: a piece of foil does not let water climb. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) a piece of chalk (b) a paper towel (c) a flower stem (d) a plastic ruler
27. 27.True or false: a rubber eraser lets water climb up it. (a) False (b) True
28. 28.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a balloon (c) a white flower (d) a glass of water
29. 29.🔍 Which is the odd one out? (a) a rubber eraser (b) a glass marble (c) a sugar cube (d) a plastic ruler
30. 30.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is kept the same. (a) True (b) False
31. 31.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) a white flower (d) turmeric powder
32. 32.⚖️ 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
33. 33.True or false: a steel spoon lets water climb up it. (a) False (b) True
34. 34.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
35. 35.True or false: a battery cell is not needed for the coloured flower experiment. (a) False (b) True
36. 36.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
37. 37.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a magnet (c) a white flower (d) a mirror
38. 38.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is kept the same. (a) True (b) False
39. 39.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a glass of water (d) a battery cell
40. 40.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb

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