Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 875 · 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 lets water climb up it? (a) a flower stem (b) a piece of foil (c) a plastic ruler (d) a steel spoon
2. 2.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
3. 3.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
4. 4.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
5. 5.⚖️ 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
6. 6.🔍 Which is the odd one out? (a) a plastic ruler (b) a rubber eraser (c) a steel spoon (d) a sugar cube
7. 7.🛟 What should you do after handling food colour? (a) rub your eyes (b) lick your fingers (c) wipe them on walls (d) wash your hands
8. 8.🔍 Which is the odd one out? (a) a steel spoon (b) a rubber eraser (c) a piece of chalk (d) a glass marble
9. 9.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
10. 10.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is kept the same. (a) True (b) False
11. 11.🔍 Which is the odd one out? (a) a flower stem (b) a paper towel (c) a rubber eraser (d) a strip of cloth
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a balloon (d) a glass of water
13. 13.⚖️ 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 keep it the same (b) we measure it (c) we change it
14. 14.True or false: a balloon is needed for the coloured flower experiment. (a) False (b) True
15. 15.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
16. 16.⚖️ 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 kind of flower (d) the length of the stem
17. 17.True or false: a flower stem does not let water climb. (a) True (b) False
18. 18.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
19. 19.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
20. 20.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a few hours of waiting (c) turmeric powder (d) a white flower
21. 21.🔍 Which is the odd one out? (a) a plastic ruler (b) a steel spoon (c) a piece of foil (d) a strip of cloth
22. 22.🛟 Who should trim the flower stem? (a) a pet (b) a toddler (c) anyone, without looking (d) a grown-up
23. 23.⚖️ 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 amount of water (b) time for colour to show (c) the room it stands in (d) the length of the stem
24. 24.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) evaporation (c) capillary action (d) melting
25. 25.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) a sugar cube (b) a steel spoon (c) a cotton thread (d) a flower stem
27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) a battery cell (d) a glass of water
28. 28.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
29. 29.⚖️ 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 keep it the same (b) we measure it (c) we change it
30. 30.⚖️ 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
31. 31.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is the one thing we change. (a) True (b) False
32. 32.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a magnet (c) a few hours of waiting (d) a balloon
33. 33.🔍 Which is the odd one out? (a) a plastic ruler (b) a paper towel (c) a steel spoon (d) a rubber eraser
34. 34.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) food colour (c) a magnet (d) a glass of water
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.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) it rains on them (c) through tiny stem tubes (d) through the air
37. 37.True or false: a balloon is not needed for the coloured flower experiment. (a) True (b) False
38. 38.🧺 Which of these is not needed for the coloured flower experiment? (a) a balloon (b) a few hours of waiting (c) a white flower (d) a glass of water
39. 39.True or false: a paper towel lets water climb up it. (a) False (b) True
40. 40.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) food colour (c) a glass of water (d) a few hours of waiting

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