Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 277 · 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.🛟 What should you do after handling food colour? (a) lick your fingers (b) wipe them on walls (c) rub your eyes (d) wash your hands
2. 2.💧 Which of these does not let water climb? (a) a piece of chalk (b) a cotton thread (c) a sugar cube (d) a glass marble
3. 3.⚖️ 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
4. 4.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) capillary action (c) melting (d) evaporation
5. 5.True or false: a cotton thread lets water climb up it. (a) False (b) True
6. 6.True or false: a sugar cube lets water climb up it. (a) False (b) True
7. 7.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
8. 8.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the stem turns blue (c) the flower glows (d) the petals turn red
9. 9.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
10. 10.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) turmeric powder (c) a few hours of waiting (d) yeast
11. 11.True or false: a piece of chalk does not let water climb. (a) False (b) True
12. 12.💧 Which of these lets water climb up it? (a) a steel spoon (b) a glass marble (c) a plastic ruler (d) a paper towel
13. 13.🔍 Which is the odd one out? (a) a glass marble (b) a strip of cloth (c) a steel spoon (d) a piece of foil
14. 14.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) the stem is hot (c) petals lose water to air (d) petals like colour
15. 15.🛟 Who should trim the flower stem? (a) a pet (b) a toddler (c) anyone, without looking (d) a grown-up
16. 16.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) a battery cell (d) food colour
17. 17.⚖️ 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 keep it the same (c) we measure it
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) time for colour to show (c) the length of the stem
19. 19.True or false: turmeric powder is needed for the coloured flower experiment. (a) False (b) True
20. 20.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
21. 21.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a magnet (c) a white flower (d) a few hours of waiting
22. 22.🔍 Which is the odd one out? (a) a plastic ruler (b) a strip of cloth (c) a paper towel (d) a piece of chalk
23. 23.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) a white flower (d) yeast
24. 24.⚖️ 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) True (b) False
25. 25.⚖️ 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) False (b) True
26. 26.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
27. 27.⚖️ 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 keep it the same (b) we measure it (c) we change it
28. 28.🧺 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 balloon (d) a few hours of waiting
29. 29.⚖️ 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 length of the stem (b) the amount of water (c) the room it stands in (d) time for colour to show
30. 30.🔍 Which is the odd one out? (a) a rubber eraser (b) a flower stem (c) a paper towel (d) a piece of chalk
31. 31.⚖️ 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 what we measure. (a) False (b) True
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 room it stands in (b) the length of the stem (c) the amount of colour (d) the kind of flower
33. 33.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) yeast (c) a battery cell (d) a white flower
34. 34.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
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) False (b) True
36. 36.💧 Which of these lets water climb up it? (a) a glass marble (b) a piece of chalk (c) a plastic ruler (d) a piece of foil
37. 37.🌼 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
38. 38.🔍 Which is the odd one out? (a) a piece of foil (b) a flower stem (c) a strip of cloth (d) a sugar cube
39. 39.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) a flower stem (b) a paper towel (c) a cotton thread (d) a glass marble

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