Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 679 · 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 paper towel (c) a flower stem (d) a rubber eraser
2. 2.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a glass marble (c) a cotton thread (d) a piece of foil
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) a white flower (d) turmeric powder
4. 4.💧 Which of these lets water climb up it? (a) a glass marble (b) a steel spoon (c) a sugar cube (d) a rubber eraser
5. 5.⚖️ 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 change it (c) we keep it the same
6. 6.⚖️ 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
7. 7.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
8. 8.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
9. 9.⚖️ 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
10. 10.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
11. 11.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the stem turns to ice (c) the petals turn bluish (d) the flower floats away
12. 12.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
13. 13.⚖️ 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 amount of water (c) time for colour to show (d) the length of the stem
14. 14.⚖️ 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) True (b) False
15. 15.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
16. 16.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the stem turns blue (c) the petals turn red (d) the flower glows
17. 17.🌼 Why do the petals keep pulling water up the stem? (a) petals lose water to air (b) the stem is hot (c) petals like colour (d) petals are magnetic
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) time for colour to show (b) the room it stands in (c) the length of the stem
19. 19.⚖️ 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 room it stands in (b) the kind of flower (c) time for colour to show (d) the length of the stem
20. 20.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) yeast (c) a glass of water (d) a white flower
21. 21.💧 Which of these does not let water climb? (a) a strip of cloth (b) a piece of chalk (c) a sugar cube (d) a plastic ruler
22. 22.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) a few hours of waiting (c) a glass of water (d) a white flower
23. 23.True or false: a cotton thread does not let water climb. (a) False (b) True
24. 24.⚖️ 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 measure it (b) we keep it the same (c) we change it
25. 25.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
26. 26.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
27. 27.True or false: a glass marble lets water climb up it. (a) True (b) False
28. 28.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
29. 29.💧 Which of these lets water climb up it? (a) a steel spoon (b) a rubber eraser (c) a plastic ruler (d) a strip of cloth
30. 30.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) yeast (c) turmeric powder (d) a mirror
31. 31.True or false: a plastic ruler does not let water climb. (a) False (b) True
32. 32.⚖️ 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 measure it (b) we change it (c) we keep it the same
33. 33.True or false: a sugar cube does not let water climb. (a) True (b) False
34. 34.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
35. 35.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True
36. 36.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) food colour (c) a balloon (d) a glass of water
37. 37.🔍 Which is the odd one out? (a) a glass marble (b) a cotton thread (c) a strip of cloth (d) a paper towel
38. 38.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
39. 39.⚖️ 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
40. 40.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a glass marble (c) a steel spoon (d) a paper towel

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