Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 262 · 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 rubber eraser (b) a paper towel (c) a plastic ruler (d) a piece of foil
2. 2.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
3. 3.⚖️ 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 measure it (c) we keep it the same
4. 4.💧 Which of these does not let water climb? (a) a cotton thread (b) a plastic ruler (c) a strip of cloth (d) a paper towel
5. 5.⚖️ 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 colour (b) the length of the stem (c) the kind of flower (d) the room it stands in
6. 6.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
7. 7.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
8. 8.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
9. 9.🔍 Which is the odd one out? (a) a paper towel (b) a plastic ruler (c) a piece of chalk (d) a strip of cloth
10. 10.🧺 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) turmeric powder
11. 11.🧺 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 white flower (d) a balloon
12. 12.⚖️ 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
13. 13.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
14. 14.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a pet (d) a toddler
15. 15.🔍 Which is the odd one out? (a) a piece of foil (b) a steel spoon (c) a rubber eraser (d) a sugar cube
16. 16.⚖️ 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) True (b) False
17. 17.🌼 How does coloured water reach the petals? (a) it rains on them (b) it is sprayed on (c) through tiny stem tubes (d) through the air
18. 18.💧 Which of these lets water climb up it? (a) a glass marble (b) a rubber eraser (c) a plastic ruler (d) a flower stem
19. 19.True or false: a strip of cloth does not let water climb. (a) False (b) True
20. 20.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
21. 21.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a white flower (c) a magnet (d) food colour
22. 22.🔍 Which is the odd one out? (a) a cotton thread (b) a glass marble (c) a strip of cloth (d) a piece of chalk
23. 23.True or false: a plastic ruler does not let water climb. (a) True (b) False
24. 24.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
25. 25.⚖️ 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
26. 26.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the petals turn bluish (c) the water turns green (d) the stem turns to ice
27. 27.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
28. 28.True or false: a mirror is needed for the coloured flower experiment. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) a glass marble (b) a plastic ruler (c) a steel spoon (d) a cotton thread
30. 30.🧺 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
31. 31.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a balloon (c) a glass of water (d) a battery cell
32. 32.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a battery cell (c) a glass of water (d) food colour
33. 33.True or false: a sugar cube lets water climb up it. (a) True (b) False
34. 34.🧺 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 white flower (d) a magnet
35. 35.⚖️ 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 keep it the same (b) we measure it (c) we change it
36. 36.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
37. 37.True or false: food colour is not needed for the coloured flower experiment. (a) False (b) True
38. 38.True or false: a flower stem does not let water climb. (a) True (b) False
39. 39.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
40. 40.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) melting (c) evaporation (d) capillary action

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