Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 764 · 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.True or false: a piece of chalk lets water climb up it. (a) True (b) False
2. 2.🛟 What should you do after handling food colour? (a) wipe them on walls (b) lick your fingers (c) wash your hands (d) rub your eyes
3. 3.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a mirror (c) a glass of water (d) yeast
4. 4.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) a grown-up (d) anyone, without looking
5. 5.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals lose water to air (c) petals are magnetic (d) petals like colour
6. 6.🔍 Which is the odd one out? (a) a paper towel (b) a sugar cube (c) a flower stem (d) a rubber eraser
7. 7.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a mirror (c) a glass of water (d) a white flower
8. 8.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) nothing ever happens (c) it sinks at once (d) colour climbs up it
9. 9.🔍 Which is the odd one out? (a) a flower stem (b) a piece of foil (c) a steel spoon (d) a glass marble
10. 10.True or false: a sugar cube lets water climb up it. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) a rubber eraser (b) a plastic ruler (c) a steel spoon (d) a cotton thread
12. 12.💧 Which of these does not let water climb? (a) a cotton thread (b) a strip of cloth (c) a steel spoon (d) a paper towel
13. 13.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) True (b) False
14. 14.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) a few hours of waiting (c) a glass of water (d) food colour
15. 15.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
16. 16.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the flower floats away (c) the stem turns to ice (d) the water turns green
17. 17.True or false: food colour is needed for the coloured flower experiment. (a) False (b) True
18. 18.⚖️ 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 kind of flower (b) the length of the stem (c) time for colour to show
19. 19.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
20. 20.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
21. 21.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
22. 22.💧 Which of these does not let water climb? (a) a piece of foil (b) a paper towel (c) a piece of chalk (d) a strip of cloth
23. 23.⚖️ 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 change it (c) we keep it the same
24. 24.True or false: a piece of foil does not let water climb. (a) False (b) True
25. 25.True or false: a piece of foil lets water climb up it. (a) True (b) False
26. 26.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) yeast (c) a few hours of waiting (d) a glass of water
27. 27.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) turmeric powder (c) food colour (d) a magnet
28. 28.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is what we measure. (a) True (b) False
29. 29.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
30. 30.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
31. 31.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a mirror (c) a glass of water (d) food colour
32. 32.🌼 How does coloured water reach the petals? (a) through the air (b) it is sprayed on (c) through tiny stem tubes (d) it rains on them
33. 33.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the room it stands in”? (a) we change it (b) we measure it (c) we keep it the same
34. 34.🔍 Which is the odd one out? (a) a flower stem (b) a sugar cube (c) a paper towel (d) a plastic ruler
35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a white flower (c) a few hours of waiting (d) a glass of water
36. 36.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a strip of cloth (c) a piece of foil (d) a plastic ruler
37. 37.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is the one thing we change. (a) False (b) True
38. 38.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
39. 39.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the petals turn red (c) the stem turns blue (d) no colour change
40. 40.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a piece of foil (c) a glass marble (d) a piece of chalk

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