Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 366 · 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 is the odd one out? (a) a plastic ruler (b) a strip of cloth (c) a steel spoon (d) a glass marble
2. 2.⚖️ 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 amount of water (b) time for colour to show (c) the length of the stem (d) the kind of flower
3. 3.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
4. 4.🛟 What should you do after handling food colour? (a) rub your eyes (b) lick your fingers (c) wash your hands (d) wipe them on walls
5. 5.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
6. 6.⚖️ 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
7. 7.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) nothing ever happens (c) it turns to plastic (d) colour climbs up it
8. 8.⚖️ 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 length of the stem (c) time for colour to show (d) the kind of flower
9. 9.True or false: a flower stem lets water climb up it. (a) True (b) False
10. 10.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
11. 11.True or false: a strip of cloth lets water climb up it. (a) True (b) False
12. 12.True or false: a glass marble does not let water climb. (a) False (b) True
13. 13.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a mirror (c) yeast (d) a glass of water
14. 14.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
15. 15.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
16. 16.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) turmeric powder (b) a white flower (c) a glass of water (d) a few hours of waiting
17. 17.📘 What is it called when water climbs up thin tubes or paper by itself? (a) capillary action (b) melting (c) magnetism (d) evaporation
18. 18.⚖️ 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 change it (b) we keep it the same (c) we measure it
19. 19.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) it rains on them (c) through the air (d) it is sprayed on
20. 20.💧 Which of these does not let water climb? (a) a paper towel (b) a piece of foil (c) a sugar cube (d) a strip of cloth
21. 21.⚖️ 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
22. 22.💧 Which of these does not let water climb? (a) a paper towel (b) a glass marble (c) a sugar cube (d) a cotton thread
23. 23.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) a cotton thread (b) a plastic ruler (c) a sugar cube (d) a strip of cloth
25. 25.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
26. 26.⚖️ 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
27. 27.True or false: a piece of foil does not let water climb. (a) True (b) False
28. 28.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a few hours of waiting (c) yeast (d) a battery cell
29. 29.🔍 Which is the odd one out? (a) a plastic ruler (b) a flower stem (c) a piece of foil (d) a steel spoon
30. 30.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) a few hours of waiting (c) a white flower (d) a glass of water
31. 31.⚖️ 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 keep it the same (c) we measure it
32. 32.True or false: a sugar cube lets water climb up it. (a) True (b) False
33. 33.💧 Which of these does not let water climb? (a) a strip of cloth (b) a plastic ruler (c) a flower stem (d) a paper towel
34. 34.True or false: a flower stem does not let water climb. (a) False (b) True
35. 35.⚖️ 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) the kind of flower (c) time for colour to show
36. 36.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
37. 37.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a pet (d) a grown-up
38. 38.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
39. 39.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
40. 40.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb

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