Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 254 · 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: the amount of water is the one thing we change. (a) True (b) False
2. 2.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a battery cell (c) a white flower (d) food colour
3. 3.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a pet (d) a toddler
4. 4.🌼 How does coloured water reach the petals? (a) through the air (b) through tiny stem tubes (c) it rains on them (d) it is sprayed on
5. 5.True or false: a strip of cloth lets water climb up it. (a) True (b) False
6. 6.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wipe them on walls (d) wash your hands
7. 7.💧 Which of these lets water climb up it? (a) a strip of cloth (b) a glass marble (c) a plastic ruler (d) a steel spoon
8. 8.⚖️ 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 amount of colour
9. 9.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the stem turns blue (c) no colour change (d) the petals turn red
10. 10.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
11. 11.True or false: a glass marble lets water climb up it. (a) False (b) True
12. 12.🧺 Which of these is not needed for the coloured flower experiment? (a) a mirror (b) a few hours of waiting (c) a glass of water (d) food colour
13. 13.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) food colour (c) a white flower (d) yeast
14. 14.🔍 Which is the odd one out? (a) a steel spoon (b) a glass marble (c) a rubber eraser (d) a flower stem
15. 15.⚖️ 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 keep it the same (b) we change it (c) we measure it
16. 16.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) turmeric powder (c) a few hours of waiting (d) food colour
17. 17.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
18. 18.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a white flower (c) a battery cell (d) a magnet
19. 19.⚖️ 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
20. 20.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is what we measure. (a) True (b) False
21. 21.🔍 Which is the odd one out? (a) a piece of chalk (b) a strip of cloth (c) a cotton thread (d) a glass marble
22. 22.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
23. 23.⚖️ 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 keep it the same (b) we measure it (c) we change it
24. 24.⚖️ 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
25. 25.⚖️ 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 kind of flower (b) the length of the stem (c) time for colour to show (d) the room it stands in
26. 26.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
27. 27.🔮 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
28. 28.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
29. 29.🔍 Which is the odd one out? (a) a steel spoon (b) a glass marble (c) a piece of chalk (d) a plastic ruler
30. 30.True or false: a steel spoon lets water climb up it. (a) True (b) False
31. 31.💧 Which of these lets water climb up it? (a) a glass marble (b) a plastic ruler (c) a steel spoon (d) a flower stem
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? Which of these is kept the same? (a) the amount of water (b) the length of the stem (c) time for colour to show
34. 34.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
35. 35.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
36. 36.⚖️ 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 keep it the same (b) we measure it (c) we change it
37. 37.🔍 Which is the odd one out? (a) a paper towel (b) a piece of foil (c) a sugar cube (d) a piece of chalk
38. 38.💧 Which of these does not let water climb? (a) a piece of chalk (b) a cotton thread (c) a glass marble (d) a paper towel
39. 39.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a mirror (c) a battery cell (d) food colour
40. 40.💧 Which of these lets water climb up it? (a) a piece of foil (b) a piece of chalk (c) a rubber eraser (d) a plastic ruler

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