Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 513 · 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.🔍 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 stem turns to ice (d) the water turns green
2. 2.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
3. 3.💧 Which of these does not let water climb? (a) a glass marble (b) a strip of cloth (c) a piece of chalk (d) a sugar cube
4. 4.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
5. 5.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
6. 6.⚖️ 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 length of the stem (c) time for colour to show (d) the room it stands in
7. 7.⚖️ 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
8. 8.⚖️ 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
9. 9.⚖️ 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 room it stands in (b) the length of the stem (c) the kind of flower (d) time for colour to show
10. 10.⚖️ 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 change it (b) we measure it (c) we keep it the same
11. 11.⚖️ 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
12. 12.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a paper towel (c) a piece of foil (d) a steel spoon
13. 13.⚖️ 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) True (b) False
14. 14.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a mirror (d) a glass of water
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.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they turn two colours (c) they all turn green (d) they fall off at once
17. 17.💧 Which of these lets water climb up it? (a) a piece of foil (b) a steel spoon (c) a glass marble (d) a cotton thread
18. 18.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
19. 19.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals lose water to air (c) petals are magnetic (d) petals like colour
20. 20.⚖️ 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
21. 21.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
22. 22.🧺 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 magnet (d) food colour
23. 23.💧 Which of these lets water climb up it? (a) a piece of foil (b) a piece of chalk (c) a plastic ruler (d) a steel spoon
24. 24.🔍 Which is the odd one out? (a) a sugar cube (b) a rubber eraser (c) a piece of chalk (d) a cotton thread
25. 25.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a balloon (c) a magnet (d) a glass of water
26. 26.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) a white flower (c) a few hours of waiting (d) food colour
27. 27.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a battery cell (c) a glass of water (d) a white flower
28. 28.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
29. 29.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a battery cell (c) turmeric powder (d) a white flower
30. 30.⚖️ 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
31. 31.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) melting (c) capillary action (d) magnetism
32. 32.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) a piece of foil (b) a strip of cloth (c) a paper towel (d) a piece of chalk
34. 34.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
35. 35.True or false: a flower stem does not let water climb. (a) False (b) True
36. 36.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a white flower (c) a glass of water (d) food colour
37. 37.⚖️ 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 change it (b) we measure it (c) we keep it the same
38. 38.⚖️ 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 kept the same. (a) True (b) False
39. 39.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a balloon (c) a white flower (d) a glass of water
40. 40.🔍 Which is the odd one out? (a) a strip of cloth (b) a glass marble (c) a flower stem (d) a cotton thread

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