Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 543 · 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.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
2. 2.💧 Which of these lets water climb up it? (a) a steel spoon (b) a cotton thread (c) a glass marble (d) a plastic ruler
3. 3.True or false: a piece of chalk does not let water climb. (a) False (b) True
4. 4.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) food colour (d) turmeric powder
5. 5.⚖️ 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
6. 6.⚖️ 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 measure it (c) we keep it the same
7. 7.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) it turns to plastic (c) nothing ever happens (d) colour climbs up it
8. 8.🔍 Which is the odd one out? (a) a flower stem (b) a strip of cloth (c) a piece of foil (d) a piece of chalk
9. 9.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
10. 10.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a pet (d) a grown-up
11. 11.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
12. 12.🔍 Which is the odd one out? (a) a cotton thread (b) a paper towel (c) a rubber eraser (d) a strip of cloth
13. 13.⚖️ 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 kept the same. (a) False (b) True
14. 14.🧺 Which of these is not needed for the coloured flower experiment? (a) yeast (b) food colour (c) a white flower (d) a few hours of waiting
15. 15.💧 Which of these does not let water climb? (a) a paper towel (b) a piece of chalk (c) a cotton thread (d) a steel spoon
16. 16.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) it rains on them (c) through tiny stem tubes (d) through the air
17. 17.True or false: a rubber eraser does not let water climb. (a) False (b) True
18. 18.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
19. 19.⚖️ 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
20. 20.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) capillary action (c) magnetism (d) evaporation
21. 21.🔍 Which is the odd one out? (a) a cotton thread (b) a paper towel (c) a piece of chalk (d) a plastic ruler
22. 22.True or false: a paper towel does not let water climb. (a) False (b) True
23. 23.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
24. 24.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) turmeric powder (c) a glass of water (d) a magnet
25. 25.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
26. 26.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) a white flower (c) a few hours of waiting (d) a glass of water
27. 27.🔍 Which is the odd one out? (a) a piece of foil (b) a glass marble (c) a steel spoon (d) a piece of chalk
28. 28.💧 Which of these does not let water climb? (a) a flower stem (b) a sugar cube (c) a strip of cloth (d) a rubber eraser
29. 29.True or false: a balloon is not needed for the coloured flower experiment. (a) True (b) False
30. 30.⚖️ 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 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 white flower (b) a glass of water (c) a few hours of waiting (d) a magnet
32. 32.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
33. 33.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
34. 34.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
35. 35.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is the one thing we change. (a) True (b) False
36. 36.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) yeast (d) a white flower
37. 37.⚖️ 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
38. 38.💧 Which of these does not let water climb? (a) a flower stem (b) a piece of foil (c) a piece of chalk (d) a strip of cloth
39. 39.True or false: a sugar cube does not let water climb. (a) True (b) False
40. 40.True or false: a glass marble lets water climb up it. (a) True (b) False

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