Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 340 · 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 is not needed for the coloured flower experiment? (a) food colour (b) a balloon (c) a white flower (d) a glass of water
2. 2.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a balloon (c) a glass of water (d) a magnet
3. 3.🛟 What should you do after handling food colour? (a) wipe them on walls (b) lick your fingers (c) rub your eyes (d) wash your hands
4. 4.True or false: a piece of chalk does not let water climb. (a) False (b) True
5. 5.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
6. 6.⚖️ 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
7. 7.🔍 Which is the odd one out? (a) a plastic ruler (b) a cotton thread (c) a rubber eraser (d) a piece of foil
8. 8.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) yeast (c) a white flower (d) a balloon
9. 9.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a few hours of waiting (c) turmeric powder (d) a battery cell
10. 10.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a magnet (c) a few hours of waiting (d) a white flower
11. 11.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
12. 12.⚖️ 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 room it stands in (c) the length of the stem
13. 13.⚖️ 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) False (b) True
14. 14.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they fall off at once (b) they stay white (c) they all turn green (d) they turn two colours
15. 15.True or false: a rubber eraser does not let water climb. (a) False (b) True
16. 16.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is the one thing we change. (a) True (b) False
17. 17.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) turmeric powder (c) a white flower (d) a glass of water
18. 18.⚖️ 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
19. 19.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) magnetism (c) capillary action (d) melting
20. 20.🔍 Which is the odd one out? (a) a paper towel (b) a steel spoon (c) a sugar cube (d) a piece of chalk
21. 21.⚖️ 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 change it (c) we measure it
22. 22.🌼 How does coloured water reach the petals? (a) through the air (b) it rains on them (c) it is sprayed on (d) through tiny stem tubes
23. 23.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the flower floats away (c) the petals turn bluish (d) the stem turns to ice
24. 24.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
25. 25.⚖️ 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 the one thing we change. (a) False (b) True
26. 26.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is the one thing we change. (a) True (b) False
27. 27.⚖️ 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 keep it the same (b) we measure it (c) we change it
28. 28.⚖️ 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
29. 29.⚖️ 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
30. 30.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a plastic ruler (c) a steel spoon (d) a paper towel
31. 31.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
32. 32.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
33. 33.True or false: a battery cell is not needed for the coloured flower experiment. (a) False (b) True
34. 34.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) True (b) False
35. 35.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
36. 36.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
37. 37.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) turmeric powder (c) a few hours of waiting (d) food colour
38. 38.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) a glass of water (c) a white flower (d) food colour
39. 39.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a magnet (c) food colour (d) a white flower
40. 40.🔍 Which is the odd one out? (a) a sugar cube (b) a strip of cloth (c) a plastic ruler (d) a paper towel

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