Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 882 · 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 cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
2. 2.🧺 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) turmeric powder (d) food colour
3. 3.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is kept the same? (a) time for colour to show (b) the length of the stem (c) the kind of flower
4. 4.💧 Dip a paper towel 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? True or false: time for colour to show is what we measure. (a) True (b) False
6. 6.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they all turn green (b) they stay white (c) they turn two colours (d) they fall off at once
7. 7.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) melting (c) capillary action (d) evaporation
8. 8.💧 Which of these lets water climb up it? (a) a glass marble (b) a rubber eraser (c) a plastic ruler (d) a strip of cloth
9. 9.⚖️ 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 measure it (b) we keep it the same (c) we change it
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 what we measure. (a) True (b) False
11. 11.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
12. 12.True or false: a sugar cube lets water climb up it. (a) True (b) False
13. 13.True or false: a magnet is not needed for the coloured flower experiment. (a) False (b) True
14. 14.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a battery cell (c) a few hours of waiting (d) a glass of water
15. 15.⚖️ 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 change it (b) we keep it the same (c) we measure it
16. 16.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) a white flower (d) a balloon
17. 17.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
18. 18.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a glass marble (c) a plastic ruler (d) a cotton thread
19. 19.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
20. 20.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
21. 21.💧 Which of these does not let water climb? (a) a piece of chalk (b) a flower stem (c) a plastic ruler (d) a paper towel
22. 22.True or false: a piece of chalk does not let water climb. (a) True (b) False
23. 23.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
24. 24.⚖️ 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 kind of flower (b) the amount of colour (c) the length of the stem (d) time for colour to show
25. 25.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
26. 26.True or false: a cotton thread lets water climb up it. (a) False (b) True
27. 27.True or false: a strip of cloth lets water climb up it. (a) False (b) True
28. 28.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a magnet (c) a mirror (d) a few hours of waiting
29. 29.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a magnet (c) food colour (d) a white flower
30. 30.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a glass of water (c) a magnet (d) a balloon
31. 31.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
32. 32.💧 Which of these does not let water climb? (a) a paper towel (b) a rubber eraser (c) a cotton thread (d) a sugar cube
33. 33.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
34. 34.🔍 Which is the odd one out? (a) a cotton thread (b) a steel spoon (c) a flower stem (d) a piece of chalk
35. 35.⚖️ 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 keep it the same (c) we change it
36. 36.True or false: a paper towel lets water climb up it. (a) True (b) False
37. 37.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
38. 38.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
39. 39.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
40. 40.⚖️ 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 kept the same. (a) False (b) True

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