Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 678 · 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 sugar cube (b) a strip of cloth (c) a glass marble (d) a cotton thread
2. 2.🧺 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 few hours of waiting (d) a balloon
3. 3.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
4. 4.True or false: a cotton thread does not let water climb. (a) True (b) False
5. 5.⚖️ 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
6. 6.⚖️ 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
7. 7.💧 Which of these does not let water climb? (a) a paper towel (b) a flower stem (c) a strip of cloth (d) a glass marble
8. 8.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
9. 9.True or false: a piece of chalk does not let water climb. (a) False (b) True
10. 10.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a glass of water (d) a mirror
11. 11.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a pet (d) a grown-up
12. 12.True or false: a piece of chalk lets water climb up it. (a) True (b) False
13. 13.⚖️ 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 keep it the same (b) we measure it (c) we change it
14. 14.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a steel spoon (d) a sugar cube
15. 15.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
16. 16.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
17. 17.⚖️ 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 keep it the same (c) we change it
18. 18.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is the one thing we change. (a) False (b) True
19. 19.⚖️ 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 measure it (c) we change it
20. 20.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) yeast (c) a glass of water (d) a few hours of waiting
21. 21.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a few hours of waiting (c) turmeric powder (d) a glass of water
22. 22.⚖️ 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 length of the stem (c) the kind of flower
23. 23.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a piece of foil (c) a steel spoon (d) a cotton thread
24. 24.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) colour climbs up it (c) nothing ever happens (d) it sinks at once
25. 25.True or false: a glass marble does not let water climb. (a) False (b) True
26. 26.True or false: a rubber eraser lets water climb up it. (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 “time for colour to show”? (a) we change it (b) we keep it the same (c) we measure it
28. 28.⚖️ 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 length of the stem (b) the room it stands in (c) the amount of water (d) the kind of flower
29. 29.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
30. 30.🌼 How does coloured water reach the petals? (a) through the air (b) through tiny stem tubes (c) it is sprayed on (d) it rains on them
31. 31.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a few hours of waiting (c) a battery cell (d) a white flower
32. 32.💧 Which of these does not let water climb? (a) a strip of cloth (b) a sugar cube (c) a piece of chalk (d) a piece of foil
33. 33.⚖️ 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) False (b) True
34. 34.⚖️ 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 length of the stem (b) time for colour to show (c) the amount of colour (d) the kind of flower
35. 35.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
36. 36.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) evaporation (c) capillary action (d) magnetism
37. 37.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) food colour (c) a white flower (d) a balloon
38. 38.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
39. 39.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a white flower (c) a magnet (d) a balloon
40. 40.True or false: a sugar cube lets water climb up it. (a) False (b) True

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