Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 112 · 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.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) magnetism (c) capillary action (d) melting
2. 2.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a few hours of waiting (c) a glass of water (d) a white flower
3. 3.🔍 Which is the odd one out? (a) a rubber eraser (b) a cotton thread (c) a paper towel (d) a flower stem
4. 4.True or false: a strip of cloth lets water climb up it. (a) False (b) True
5. 5.🌼 Why do the petals keep pulling water up the stem? (a) petals lose water to air (b) petals like colour (c) the stem is hot (d) petals are magnetic
6. 6.⚖️ 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
7. 7.⚖️ 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 change it (b) we keep it the same (c) we measure it
8. 8.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
9. 9.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a mirror (c) a glass of water (d) a few hours of waiting
10. 10.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
11. 11.🔍 Which is the odd one out? (a) a glass marble (b) a plastic ruler (c) a piece of chalk (d) a piece of foil
12. 12.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a battery cell (c) food colour (d) a magnet
13. 13.🛟 What should you do after handling food colour? (a) lick your fingers (b) wash your hands (c) wipe them on walls (d) rub your eyes
14. 14.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) nothing ever happens (c) colour climbs up it (d) it turns to plastic
15. 15.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) a balloon (c) a magnet (d) a mirror
16. 16.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) turmeric powder (d) a glass of water
17. 17.💧 Which of these does not let water climb? (a) a flower stem (b) a steel spoon (c) a cotton thread (d) a strip of cloth
18. 18.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
19. 19.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a pet (d) a toddler
20. 20.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they all turn green (b) they turn two colours (c) they stay white (d) they fall off at once
21. 21.🔍 Which is the odd one out? (a) a cotton thread (b) a piece of chalk (c) a strip of cloth (d) a plastic ruler
22. 22.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False
23. 23.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a white flower (d) a magnet
24. 24.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) a few hours of waiting (c) a white flower (d) a glass of water
25. 25.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is kept the same? (a) time for colour to show (b) the room it stands in (c) the length of the stem
26. 26.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
27. 27.💧 Which of these lets water climb up it? (a) a glass marble (b) a cotton thread (c) a piece of foil (d) a rubber eraser
28. 28.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) food colour (c) a white flower (d) a few hours of waiting
29. 29.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
30. 30.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
31. 31.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
32. 32.🔍 Which is the odd one out? (a) a plastic ruler (b) a steel spoon (c) a piece of foil (d) a paper towel
33. 33.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
34. 34.🧺 Do we need food colour 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 amount of water is kept the same. (a) False (b) True
36. 36.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
37. 37.True or false: a magnet is not needed for the coloured flower experiment. (a) False (b) True
38. 38.💧 Which of these does not let water climb? (a) a cotton thread (b) a rubber eraser (c) a sugar cube (d) a paper towel
39. 39.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) a flower stem (b) a glass marble (c) a piece of chalk (d) a sugar cube

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