Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 590 · 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 plastic ruler (b) a rubber eraser (c) a piece of chalk (d) a glass marble
2. 2.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
3. 3.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the stem turns to ice (c) the flower floats away (d) the petals turn bluish
4. 4.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is what we measure. (a) False (b) True
5. 5.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a white flower (c) a few hours of waiting (d) yeast
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 change it (b) we keep it the same (c) we measure it
7. 7.💧 Which of these lets water climb up it? (a) a piece of foil (b) a rubber eraser (c) a paper towel (d) a glass marble
8. 8.⚖️ 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 length of the stem (d) the kind of flower
9. 9.⚖️ 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 length of the stem (b) time for colour to show (c) the amount of water
10. 10.⚖️ 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 what we measure. (a) False (b) True
11. 11.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) food colour (c) a glass of water (d) a few hours of waiting
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) food colour (c) a few hours of waiting (d) a white flower
13. 13.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) no colour change (c) the stem turns blue (d) the flower glows
14. 14.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a toddler (c) a grown-up (d) a pet
15. 15.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a cotton thread (c) a steel spoon (d) a piece of foil
16. 16.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) colour climbs up it (c) it sinks at once (d) nothing ever happens
17. 17.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
18. 18.True or false: a plastic ruler lets water climb up it. (a) False (b) True
19. 19.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) magnetism (c) capillary action (d) evaporation
20. 20.🔍 Which is the odd one out? (a) a sugar cube (b) a steel spoon (c) a piece of chalk (d) a paper towel
21. 21.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is kept the same. (a) False (b) True
22. 22.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) petals lose water to air (c) petals like colour (d) the stem is hot
23. 23.⚖️ 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) False (b) True
24. 24.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
25. 25.💧 Which of these lets water climb up it? (a) a piece of foil (b) a glass marble (c) a sugar cube (d) a plastic ruler
26. 26.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) turmeric powder (c) a mirror (d) a balloon
27. 27.🧺 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) a mirror
28. 28.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
29. 29.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
30. 30.True or false: a sugar cube lets water climb up it. (a) True (b) False
31. 31.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) yeast (c) a mirror (d) a few hours of waiting
32. 32.⚖️ 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 keep it the same (b) we change it (c) we measure it
33. 33.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) turmeric powder (c) a few hours of waiting (d) food colour
34. 34.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
35. 35.True or false: a paper towel does not let water climb. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) a plastic ruler (b) a paper towel (c) a piece of chalk (d) a flower stem
37. 37.🛟 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
38. 38.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a balloon (c) a mirror (d) food colour
39. 39.🔍 Which is the odd one out? (a) a paper towel (b) a flower stem (c) a rubber eraser (d) a sugar cube
40. 40.True or false: a piece of foil lets water climb up it. (a) True (b) False

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