Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 391 · 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 length of the stem”? (a) we keep it the same (b) we change it (c) we measure it
2. 2.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a few hours of waiting (c) a white flower (d) a mirror
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) turmeric powder (c) a few hours of waiting (d) a white flower
4. 4.True or false: a sugar cube lets water climb up it. (a) False (b) True
5. 5.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a balloon (c) a glass of water (d) a magnet
6. 6.🔮 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
7. 7.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) capillary action (c) evaporation (d) melting
8. 8.⚖️ 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
9. 9.⚖️ 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
10. 10.🌼 How does coloured water reach the petals? (a) it rains on them (b) through tiny stem tubes (c) it is sprayed on (d) through the air
11. 11.True or false: a steel spoon does not let water climb. (a) False (b) True
12. 12.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a mirror (c) a few hours of waiting (d) a battery cell
13. 13.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
14. 14.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) True (b) False
15. 15.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) a few hours of waiting (c) a glass of water (d) food colour
16. 16.🛟 What should you do after handling food colour? (a) wipe them on walls (b) rub your eyes (c) lick your fingers (d) wash your hands
17. 17.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
18. 18.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
19. 19.🔍 Which is the odd one out? (a) a steel spoon (b) a flower stem (c) a strip of cloth (d) a cotton thread
20. 20.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
21. 21.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
22. 22.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a glass of water (c) a white flower (d) a few hours of waiting
23. 23.🧺 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 balloon (d) a white flower
24. 24.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
25. 25.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a pet (d) a grown-up
26. 26.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
27. 27.💧 Which of these lets water climb up it? (a) a sugar cube (b) a glass marble (c) a plastic ruler (d) a piece of foil
28. 28.💧 Which of these lets water climb up it? (a) a steel spoon (b) a glass marble (c) a piece of foil (d) a cotton thread
29. 29.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
30. 30.⚖️ 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 kind of flower (c) time for colour to show (d) the length of the stem
31. 31.True or false: a glass marble does not let water climb. (a) False (b) True
32. 32.True or false: a white flower is not needed for the coloured flower experiment. (a) False (b) True
33. 33.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a white flower (c) a glass of water (d) a magnet
34. 34.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
35. 35.🔍 Which is the odd one out? (a) a plastic ruler (b) a glass marble (c) a steel spoon (d) a sugar cube
36. 36.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a magnet (c) a white flower (d) turmeric powder
37. 37.⚖️ 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) False (b) True
38. 38.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a mirror (c) a white flower (d) a few hours of waiting
39. 39.🧺 Which of these is not needed for the coloured flower experiment? (a) turmeric powder (b) food colour (c) a glass of water (d) a few hours of waiting
40. 40.🔍 Which is the odd one out? (a) a piece of foil (b) a piece of chalk (c) a steel spoon (d) a plastic ruler

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