Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 891 · 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.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
2. 2.💧 Which of these does not let water climb? (a) a sugar cube (b) a flower stem (c) a piece of foil (d) a cotton thread
3. 3.🧺 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 balloon
4. 4.True or false: a rubber eraser 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 change it (c) we keep it the same
6. 6.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
7. 7.🌼 Why do the petals keep pulling water up the stem? (a) petals lose water to air (b) petals like colour (c) the stem is hot (d) petals are magnetic
8. 8.True or false: a piece of chalk lets water climb up it. (a) False (b) True
9. 9.💧 Which of these does not let water climb? (a) a paper towel (b) a strip of cloth (c) a sugar cube (d) a steel spoon
10. 10.⚖️ 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
11. 11.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a mirror (c) a glass of water (d) a battery cell
12. 12.⚖️ 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 the one thing we change. (a) True (b) False
13. 13.True or false: a sugar cube lets water climb up it. (a) True (b) False
14. 14.💧 Which of these lets water climb up it? (a) a sugar cube (b) a piece of foil (c) a rubber eraser (d) a glass marble
15. 15.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
16. 16.🛟 Who should trim the flower stem? (a) a grown-up (b) a toddler (c) anyone, without looking (d) a pet
17. 17.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
18. 18.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) a few hours of waiting (c) a glass of water (d) a white flower
19. 19.True or false: a plastic ruler does not let water climb. (a) True (b) False
20. 20.💧 Which of these lets water climb up it? (a) a steel spoon (b) a piece of foil (c) a strip of cloth (d) a glass marble
21. 21.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
22. 22.⚖️ 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) the amount of water (c) time for colour to show
23. 23.True or false: a magnet is needed for the coloured flower experiment. (a) False (b) True
24. 24.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the petals turn red (c) the stem turns blue (d) the flower glows
25. 25.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False
26. 26.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
27. 27.True or false: a paper towel lets water climb up it. (a) True (b) False
28. 28.⚖️ 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 room it stands in (b) the amount of colour (c) the amount of water (d) time for colour to show
29. 29.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a glass marble (d) a sugar cube
30. 30.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
31. 31.🛟 What should you do after handling food colour? (a) wipe them on walls (b) wash your hands (c) rub your eyes (d) lick your fingers
32. 32.⚖️ 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
33. 33.⚖️ 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) time for colour to show (b) the kind of flower (c) the room it stands in (d) the length of the stem
34. 34.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a few hours of waiting (d) a battery cell
36. 36.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is what we measure. (a) False (b) True
37. 37.True or false: a cotton thread does not let water climb. (a) False (b) True
38. 38.💧 Which of these lets water climb up it? (a) a piece of foil (b) a rubber eraser (c) a steel spoon (d) a cotton thread
39. 39.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) capillary action (c) melting (d) magnetism
40. 40.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a magnet (d) a white flower

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