Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 698 · 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.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) a white flower (c) a glass of water (d) food colour
2. 2.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through tiny stem tubes (c) it rains on them (d) through the air
3. 3.True or false: a piece of chalk lets water climb up it. (a) True (b) False
4. 4.⚖️ 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 measure it (b) we keep it the same (c) we change it
5. 5.⚖️ 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 keep it the same (b) we measure it (c) we change it
6. 6.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) yeast (c) a magnet (d) a balloon
7. 7.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a white flower (c) food colour (d) a magnet
8. 8.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a pet (d) a toddler
9. 9.🛟 What should you do after handling food colour? (a) wash your hands (b) rub your eyes (c) lick your fingers (d) wipe them on walls
10. 10.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
11. 11.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
12. 12.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
13. 13.True or false: a white flower is needed for the coloured flower experiment. (a) True (b) False
14. 14.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
15. 15.🔍 Which is the odd one out? (a) a flower stem (b) a piece of chalk (c) a piece of foil (d) a cotton thread
16. 16.📘 What is it called when water climbs up thin tubes or paper by itself? (a) capillary action (b) melting (c) magnetism (d) evaporation
17. 17.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) a white flower (d) a battery cell
18. 18.⚖️ 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) time for colour to show (b) the room it stands in (c) the amount of water (d) the length of the stem
19. 19.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a battery cell (c) a white flower (d) a balloon
20. 20.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a balloon (c) a white flower (d) food colour
21. 21.🔍 Which is the odd one out? (a) a glass marble (b) a sugar cube (c) a paper towel (d) a cotton thread
22. 22.True or false: a flower stem does not let water climb. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) a rubber eraser (b) a glass marble (c) a paper towel (d) a steel spoon
24. 24.True or false: a sugar cube lets water climb up it. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) a rubber eraser (b) a paper towel (c) a sugar cube (d) a strip of cloth
26. 26.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
27. 27.True or false: a steel spoon does not let water climb. (a) True (b) False
28. 28.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
29. 29.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a glass of water (c) a white flower (d) turmeric powder
30. 30.🔍 Which is the odd one out? (a) a piece of foil (b) a glass marble (c) a cotton thread (d) a rubber eraser
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 colour”? (a) we change it (b) we keep it the same (c) we measure it
32. 32.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) True (b) False
33. 33.True or false: a glass marble lets water climb up it. (a) False (b) True
34. 34.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) a white flower (d) a balloon
35. 35.🔍 Which is the odd one out? (a) a rubber eraser (b) a sugar cube (c) a plastic ruler (d) a steel spoon
36. 36.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
37. 37.⚖️ 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 colour (b) time for colour to show (c) the length of the stem
38. 38.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) it sinks at once (c) nothing ever happens (d) colour climbs up it
39. 39.💧 Which of these does not let water climb? (a) a strip of cloth (b) a glass marble (c) a flower stem (d) a paper towel
40. 40.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed

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