Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 253 · 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 piece of chalk (c) a plastic ruler (d) a piece of foil
2. 2.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) food colour (c) a balloon (d) a white flower
3. 3.💧 Which of these lets water climb up it? (a) a steel spoon (b) a plastic ruler (c) a cotton thread (d) a piece of foil
4. 4.⚖️ 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
5. 5.💧 Which of these does not let water climb? (a) a paper towel (b) a cotton thread (c) a strip of cloth (d) a steel spoon
6. 6.💧 Which of these does not let water climb? (a) a paper towel (b) a strip of cloth (c) a rubber eraser (d) a cotton thread
7. 7.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
8. 8.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a battery cell (c) a glass of water (d) a mirror
9. 9.🔍 Which is the odd one out? (a) a paper towel (b) a sugar cube (c) a piece of chalk (d) a plastic ruler
10. 10.⚖️ 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 kind of flower (b) the length of the stem (c) time for colour to show
11. 11.🛟 Who should trim the flower stem? (a) a toddler (b) a grown-up (c) a pet (d) anyone, without looking
12. 12.🛟 What should you do after handling food colour? (a) rub your eyes (b) wash your hands (c) wipe them on walls (d) lick your fingers
13. 13.💧 Which of these lets water climb up it? (a) a sugar cube (b) a glass marble (c) a plastic ruler (d) a piece of foil
14. 14.🔍 Which is the odd one out? (a) a strip of cloth (b) a piece of foil (c) a rubber eraser (d) a glass marble
15. 15.⚖️ 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 kind of flower (b) the length of the stem (c) the amount of water (d) time for colour to show
16. 16.True or false: a paper towel does not let water climb. (a) True (b) False
17. 17.🌼 How does coloured water reach the petals? (a) through the air (b) it is sprayed on (c) it rains on them (d) through tiny stem tubes
18. 18.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) a few hours of waiting (c) a glass of water (d) food colour
19. 19.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
20. 20.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a white flower (c) turmeric powder (d) yeast
21. 21.True or false: a piece of foil lets water climb up it. (a) False (b) True
22. 22.⚖️ 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) False (b) True
23. 23.⚖️ 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
24. 24.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
25. 25.💧 Which of these lets water climb up it? (a) a steel spoon (b) a strip of cloth (c) a plastic ruler (d) a rubber eraser
26. 26.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a plastic ruler (c) a paper towel (d) a glass marble
27. 27.True or false: a piece of chalk does not let water climb. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) a flower stem (b) a strip of cloth (c) a piece of chalk (d) a rubber eraser
29. 29.True or false: a flower stem does not let water climb. (a) True (b) False
30. 30.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
31. 31.⚖️ 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
32. 32.⚖️ 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) False (b) True
33. 33.⚖️ 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 measure it (b) we keep it the same (c) we change it
34. 34.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) petals like colour (c) petals lose water to air (d) the stem is hot
35. 35.True or false: a glass of water is needed for the coloured flower experiment. (a) True (b) False
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 kept the same. (a) False (b) True
37. 37.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
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 magnet (b) food colour (c) a white flower (d) a few hours of waiting
40. 40.⚖️ 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 the one thing we change. (a) True (b) False

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids