Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 606 · 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 amount of colour”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🛟 Who should trim the flower stem? (a) a grown-up (b) anyone, without looking (c) a pet (d) a toddler
3. 3.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
4. 4.🛟 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
5. 5.True or false: a piece of chalk lets water climb up it. (a) False (b) True
6. 6.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a glass of water (c) a battery cell (d) a mirror
7. 7.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
8. 8.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
9. 9.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the petals turn bluish (c) the water turns green (d) the flower floats away
10. 10.True or false: a paper towel lets water climb up it. (a) True (b) False
11. 11.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) a white flower (c) a glass of water (d) a few hours of waiting
12. 12.🌼 How does coloured water reach the petals? (a) it rains on them (b) through the air (c) through tiny stem tubes (d) it is sprayed on
13. 13.⚖️ 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 length of the stem (b) time for colour to show (c) the amount of water (d) the kind of flower
14. 14.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
15. 15.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) colour climbs up it (c) it sinks at once (d) nothing ever happens
16. 16.⚖️ 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) False (b) True
17. 17.🔍 Which is the odd one out? (a) a cotton thread (b) a paper towel (c) a piece of chalk (d) a piece of foil
18. 18.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
19. 19.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
20. 20.True or false: a glass marble lets water climb up it. (a) False (b) True
21. 21.⚖️ 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) time for colour to show (c) the room it stands in (d) the amount of colour
22. 22.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
23. 23.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) food colour (c) a white flower (d) a few hours of waiting
24. 24.🔍 Which is the odd one out? (a) a paper towel (b) a sugar cube (c) a cotton thread (d) a plastic ruler
25. 25.🧺 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) a white flower (d) yeast
26. 26.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) yeast (c) food colour (d) a battery cell
27. 27.💧 Which of these lets water climb up it? (a) a steel spoon (b) a glass marble (c) a rubber eraser (d) a flower stem
28. 28.⚖️ 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 keep it the same (c) we measure it
29. 29.💧 Which of these does not let water climb? (a) a strip of cloth (b) a piece of foil (c) a sugar cube (d) a piece of chalk
30. 30.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not 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 keep it the same (c) we change it
32. 32.True or false: a magnet is needed for the coloured flower experiment. (a) False (b) True
33. 33.⚖️ 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
34. 34.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is kept the same. (a) True (b) False
35. 35.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
36. 36.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False
37. 37.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) food colour (c) yeast (d) a white flower
38. 38.💧 Which of these lets water climb up it? (a) a paper towel (b) a glass marble (c) a plastic ruler (d) a piece of foil
39. 39.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
40. 40.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) food colour (c) a white flower (d) a mirror

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