Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 985 · 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 balloon (d) a few hours of waiting
2. 2.🧺 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) a few hours of waiting (d) a magnet
3. 3.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a pet (c) a grown-up (d) a toddler
4. 4.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is what we measure. (a) True (b) False
5. 5.🔍 Which is the odd one out? (a) a sugar cube (b) a strip of cloth (c) a piece of chalk (d) a glass marble
6. 6.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) yeast (c) a few hours of waiting (d) a mirror
7. 7.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a few hours of waiting (c) a mirror (d) a glass of water
8. 8.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
9. 9.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a steel spoon (c) a cotton thread (d) a glass marble
10. 10.True or false: a white flower is needed for the coloured flower experiment. (a) True (b) False
11. 11.True or false: a flower stem does not let water climb. (a) True (b) False
12. 12.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) melting (c) capillary action (d) magnetism
13. 13.🧺 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) food colour (d) turmeric powder
14. 14.⚖️ 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 length of the stem (b) the kind of flower (c) the room it stands in (d) time for colour to show
15. 15.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) it rains on them (c) it is sprayed on (d) through the air
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: a mirror is needed for the coloured flower experiment. (a) True (b) False
18. 18.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) yeast (d) a few hours of waiting
19. 19.⚖️ 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
20. 20.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
21. 21.💧 Which of these does not let water climb? (a) a flower stem (b) a piece of chalk (c) a plastic ruler (d) a strip of cloth
22. 22.⚖️ 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
23. 23.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) turmeric powder (c) a balloon (d) food colour
24. 24.⚖️ 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
25. 25.True or false: a steel spoon lets water climb up it. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of foil (c) a rubber eraser (d) a sugar cube
27. 27.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) colour climbs up it (c) nothing ever happens (d) it turns to plastic
28. 28.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
29. 29.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) True (b) False
30. 30.🔮 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 fall off at once (c) they stay white (d) they turn two colours
31. 31.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a piece of foil (c) a plastic ruler (d) a sugar cube
32. 32.⚖️ 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 change it (b) we measure it (c) we keep it the same
33. 33.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
34. 34.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
35. 35.⚖️ 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
36. 36.⚖️ 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 measure it (c) we keep it the same
37. 37.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False
38. 38.🧺 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 battery cell (d) a white flower
39. 39.⚖️ 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
40. 40.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb

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