Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 147 · 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.🧺 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
2. 2.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) the stem is hot (c) petals lose water to air (d) petals are magnetic
3. 3.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
4. 4.True or false: a steel spoon lets water climb up it. (a) True (b) False
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 keep it the same (c) we change it
6. 6.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
7. 7.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
8. 8.⚖️ 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
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 amount of water (b) time for colour to show (c) the length of the stem
10. 10.🔍 Which is the odd one out? (a) a flower stem (b) a piece of chalk (c) a cotton thread (d) a steel spoon
11. 11.True or false: yeast is not needed for the coloured flower experiment. (a) False (b) True
12. 12.True or false: a steel spoon does not let water climb. (a) False (b) True
13. 13.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
14. 14.🧺 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) food colour (d) a mirror
15. 15.True or false: a paper towel lets water climb up it. (a) True (b) False
16. 16.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
17. 17.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
18. 18.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a glass of water (c) a magnet (d) food colour
19. 19.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a glass of water (d) a magnet
20. 20.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
21. 21.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a battery cell (c) a white flower (d) a glass of water
22. 22.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a balloon (c) a magnet (d) a glass of water
23. 23.⚖️ 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
24. 24.True or false: a rubber eraser does not let water climb. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) a piece of foil (b) a rubber eraser (c) a plastic ruler (d) a strip of cloth
26. 26.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) False (b) True
27. 27.💧 Which of these lets water climb up it? (a) a piece of foil (b) a steel spoon (c) a strip of cloth (d) a rubber eraser
28. 28.💧 Which of these does not let water climb? (a) a plastic ruler (b) a sugar cube (c) a strip of cloth (d) a flower stem
29. 29.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) turmeric powder (d) a glass of water
30. 30.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) evaporation (c) magnetism (d) capillary action
31. 31.⚖️ 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 measure it (b) we change it (c) we keep it the same
32. 32.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) a mirror (c) a battery cell (d) a balloon
33. 33.🛟 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
34. 34.True or false: a piece of foil does not let water climb. (a) False (b) True
35. 35.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a piece of foil (c) a plastic ruler (d) a sugar cube
36. 36.💧 Which of these lets water climb up it? (a) a piece of foil (b) a paper towel (c) a plastic ruler (d) a rubber eraser
37. 37.⚖️ 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
38. 38.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) a glass of water (c) a white flower (d) a few hours of waiting
39. 39.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the petals turn bluish (c) the flower floats away (d) the water turns green
40. 40.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb

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