Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 759 · 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 is the odd one out? (a) a piece of foil (b) a rubber eraser (c) a sugar cube (d) a glass marble
2. 2.🔍 Which is the odd one out? (a) a piece of chalk (b) a glass marble (c) a plastic ruler (d) a steel spoon
3. 3.True or false: a white flower is not needed for the coloured flower experiment. (a) False (b) True
4. 4.⚖️ 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 measure it (b) we change it (c) we keep it the same
5. 5.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the water turns green (c) the petals turn bluish (d) the stem turns to ice
6. 6.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a white flower (c) yeast (d) turmeric powder
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 measure it (b) we keep it the same (c) we change it
8. 8.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they fall off at once (b) they all turn green (c) they stay white (d) they turn two colours
9. 9.⚖️ 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
10. 10.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
11. 11.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
12. 12.🔍 Which is the odd one out? (a) a flower stem (b) a plastic ruler (c) a strip of cloth (d) a paper towel
13. 13.⚖️ 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) False (b) True
14. 14.💧 Which of these lets water climb up it? (a) a glass marble (b) a steel spoon (c) a rubber eraser (d) a strip of cloth
15. 15.💧 Which of these does not let water climb? (a) a flower stem (b) a steel spoon (c) a piece of chalk (d) a sugar cube
16. 16.🛟 What should you do after handling food colour? (a) wash your hands (b) wipe them on walls (c) lick your fingers (d) rub your eyes
17. 17.True or false: a sugar cube lets water climb up it. (a) True (b) False
18. 18.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a few hours of waiting (c) a balloon (d) a magnet
19. 19.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
20. 20.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
21. 21.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
22. 22.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) a white flower (c) a glass of water (d) food colour
23. 23.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a balloon (c) food colour (d) a mirror
24. 24.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the stem turns blue (c) the petals turn red (d) the flower glows
25. 25.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) a grown-up (d) anyone, without looking
26. 26.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a mirror (c) food colour (d) a glass of water
28. 28.🔍 Which is the odd one out? (a) a strip of cloth (b) a sugar cube (c) a piece of foil (d) a cotton thread
29. 29.⚖️ 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 room it stands in (c) the kind of flower (d) time for colour to show
30. 30.🌼 How does coloured water reach the petals? (a) it rains on them (b) through the air (c) it is sprayed on (d) through tiny stem tubes
31. 31.🧺 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 battery cell (d) a few hours of waiting
32. 32.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
33. 33.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) colour climbs up it (c) it turns to plastic (d) nothing ever happens
34. 34.🔍 Which is the odd one out? (a) a glass marble (b) a steel spoon (c) a flower stem (d) a plastic ruler
35. 35.True or false: a sugar cube does not let water climb. (a) True (b) False
36. 36.💧 Which of these lets water climb up it? (a) a paper towel (b) a steel spoon (c) a piece of foil (d) a glass marble
37. 37.💧 Which of these lets water climb up it? (a) a sugar cube (b) a plastic ruler (c) a rubber eraser (d) a steel spoon
38. 38.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
39. 39.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the length of the stem”? (a) we measure it (b) we change it (c) we keep it the same
40. 40.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it

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