Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 442 · 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 is the odd one out? (a) a cotton thread (b) a flower stem (c) a steel spoon (d) a paper towel
2. 2.💧 Which of these lets water climb up it? (a) a glass marble (b) a piece of foil (c) a plastic ruler (d) a strip of cloth
3. 3.🔍 Which is the odd one out? (a) a piece of foil (b) a cotton thread (c) a plastic ruler (d) a glass marble
4. 4.🔍 Which is the odd one out? (a) a glass marble (b) a piece of chalk (c) a steel spoon (d) a piece of foil
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 kind of flower (b) the room it stands in (c) the amount of water (d) the length of the stem
6. 6.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the stem turns blue (c) the flower glows (d) the petals turn red
7. 7.🔍 Which is the odd one out? (a) a piece of foil (b) a strip of cloth (c) a piece of chalk (d) a paper towel
8. 8.True or false: a cotton thread does not let water climb. (a) True (b) False
9. 9.True or false: food colour is needed for the coloured flower experiment. (a) False (b) True
10. 10.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) melting (c) capillary action (d) magnetism
11. 11.⚖️ 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
12. 12.⚖️ 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 keep it the same (c) we measure it
13. 13.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) petals like colour (c) the stem is hot (d) petals lose water to air
14. 14.🛟 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
15. 15.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) turmeric powder (c) a few hours of waiting (d) yeast
16. 16.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a glass of water (c) food colour (d) a battery cell
17. 17.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
18. 18.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
19. 19.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a toddler (c) a pet (d) a grown-up
20. 20.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) food colour (c) a few hours of waiting (d) a glass of water
21. 21.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
22. 22.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False
23. 23.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
24. 24.🔍 Which is the odd one out? (a) a paper towel (b) a piece of chalk (c) a rubber eraser (d) a sugar cube
25. 25.⚖️ 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 keep it the same (b) we measure it (c) we change it
26. 26.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
27. 27.🧺 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) food colour (d) a magnet
28. 28.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
29. 29.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
30. 30.💧 Which of these does not let water climb? (a) a piece of chalk (b) a cotton thread (c) a plastic ruler (d) a flower stem
31. 31.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a steel spoon (c) a piece of foil (d) a sugar cube
32. 32.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True
33. 33.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
34. 34.⚖️ 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 length of the stem (b) the room it stands in (c) time for colour to show
35. 35.🔍 Which is the odd one out? (a) a flower stem (b) a glass marble (c) a strip of cloth (d) a sugar cube
36. 36.🔍 Which is the odd one out? (a) a piece of foil (b) a steel spoon (c) a flower stem (d) a glass marble
37. 37.True or false: a piece of foil 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 kept the same? (a) the length of the stem (b) the amount of water (c) time for colour to show
39. 39.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
40. 40.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it

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