Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 629 · 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.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
2. 2.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
3. 3.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
4. 4.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a few hours of waiting (c) a glass of water (d) yeast
5. 5.⚖️ 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 kind of flower (c) the length of the stem
6. 6.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is kept the same. (a) False (b) True
7. 7.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a grown-up (d) a pet
8. 8.🔮 What would change if the flower stood in plain water? (a) the stem turns blue (b) no colour change (c) the flower glows (d) the petals turn red
9. 9.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) through the air (c) it rains on them (d) it is sprayed on
10. 10.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a few hours of waiting (c) a white flower (d) a battery cell
11. 11.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
12. 12.🔍 Which is the odd one out? (a) a glass marble (b) a rubber eraser (c) a cotton thread (d) a piece of foil
13. 13.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
14. 14.True or false: a plastic ruler lets water climb up it. (a) False (b) True
15. 15.⚖️ 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 change it (b) we measure it (c) we keep it the same
16. 16.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) capillary action (c) melting (d) magnetism
17. 17.True or false: a glass marble does not let water climb. (a) True (b) False
18. 18.⚖️ 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) the length of the stem (c) time for colour to show
19. 19.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) a glass marble (b) a plastic ruler (c) a piece of foil (d) a paper towel
21. 21.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
22. 22.💧 Which of these does not let water climb? (a) a sugar cube (b) a cotton thread (c) a paper towel (d) a plastic ruler
23. 23.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a white flower (c) a mirror (d) turmeric powder
24. 24.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
25. 25.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
26. 26.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) a balloon (d) food colour
28. 28.⚖️ 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 change it (c) we keep it the same
29. 29.🔍 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
30. 30.⚖️ 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
31. 31.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
32. 32.⚖️ 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
33. 33.🛟 What should you do after handling food colour? (a) wipe them on walls (b) lick your fingers (c) wash your hands (d) rub your eyes
34. 34.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is kept the same. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a cotton thread (b) a piece of chalk (c) a steel spoon (d) a sugar cube
36. 36.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a balloon (c) a few hours of waiting (d) a magnet
37. 37.True or false: a steel spoon lets water climb up it. (a) False (b) True
38. 38.⚖️ 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 amount of water (b) the amount of colour (c) the length of the stem (d) time for colour to show
39. 39.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a plastic ruler (c) a piece of chalk (d) a piece of foil
40. 40.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) False (b) True

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