Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 153 · 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 of these is not needed for the coloured flower experiment? (a) a white flower (b) a glass of water (c) a magnet (d) food colour
2. 2.🔍 Which is the odd one out? (a) a sugar cube (b) a cotton thread (c) a glass marble (d) a piece of chalk
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a battery cell (c) a few hours of waiting (d) food colour
4. 4.🌼 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
5. 5.⚖️ 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 change it (c) we measure it
6. 6.🔍 Which is the odd one out? (a) a piece of chalk (b) a steel spoon (c) a flower stem (d) a strip of cloth
7. 7.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
8. 8.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) food colour (c) a glass of water (d) a white flower
9. 9.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they turn two colours (b) they all turn green (c) they fall off at once (d) they stay white
10. 10.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “time for colour to show”? (a) we keep it the same (b) we change it (c) we measure it
11. 11.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) a white flower (d) a battery cell
12. 12.🧺 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 magnet
13. 13.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) turmeric powder (b) a white flower (c) food colour (d) a glass of water
14. 14.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) capillary action (c) evaporation (d) magnetism
15. 15.💧 Which of these lets water climb up it? (a) a glass marble (b) a flower stem (c) a plastic ruler (d) a steel spoon
16. 16.True or false: a battery cell is not needed for the coloured flower experiment. (a) False (b) True
17. 17.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it sinks at once (c) nothing ever happens (d) it turns to plastic
18. 18.💧 Which of these does not let water climb? (a) a piece of chalk (b) a sugar cube (c) a plastic ruler (d) a flower stem
19. 19.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the room it stands in is kept the same. (a) True (b) False
20. 20.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a few hours of waiting (c) a white flower (d) a balloon
21. 21.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
22. 22.True or false: yeast is not needed for the coloured flower experiment. (a) False (b) True
23. 23.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
24. 24.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
25. 25.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) turmeric powder (c) a magnet (d) a glass of water
26. 26.⚖️ 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 measure it (b) we keep it the same (c) we change it
27. 27.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the petals turn red (c) no colour change (d) the stem turns blue
28. 28.🔍 Which is the odd one out? (a) a steel spoon (b) a paper towel (c) a glass marble (d) a rubber eraser
29. 29.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
30. 30.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
31. 31.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a grown-up (d) a pet
32. 32.⚖️ 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 kind of flower (b) the amount of water (c) the amount of colour (d) the length of the stem
33. 33.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
34. 34.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
35. 35.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
36. 36.⚖️ 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) time for colour to show (c) the amount of colour (d) the length of the stem
37. 37.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals like colour (c) petals lose water to air (d) petals are magnetic
38. 38.🧺 Which of these is not needed for the coloured flower experiment? (a) a mirror (b) a white flower (c) a glass of water (d) a few hours of waiting
39. 39.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the water turns green (c) the petals turn bluish (d) the flower floats away
40. 40.🔍 Which is the odd one out? (a) a flower stem (b) a cotton thread (c) a rubber eraser (d) a paper towel

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