Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 508 · 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.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) nothing ever happens (c) colour climbs up it (d) it sinks at once
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 balloon (d) food colour
3. 3.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a magnet (c) yeast (d) a white flower
4. 4.🔍 Which is the odd one out? (a) a piece of foil (b) a sugar cube (c) a piece of chalk (d) a paper towel
5. 5.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
6. 6.🛟 What should you do after handling food colour? (a) wipe them on walls (b) wash your hands (c) lick your fingers (d) rub your eyes
7. 7.💧 Which of these does not let water climb? (a) a cotton thread (b) a glass marble (c) a flower stem (d) a sugar cube
8. 8.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
9. 9.💧 Which of these does not let water climb? (a) a piece of chalk (b) a paper towel (c) a steel spoon (d) a cotton thread
10. 10.🔮 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
11. 11.🧺 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) a few hours of waiting (d) a battery cell
12. 12.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) through the air (c) it rains on them (d) it is sprayed on
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 length of the stem (b) the kind of flower (c) the amount of water (d) the room it stands in
14. 14.⚖️ 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 the one thing we change. (a) False (b) True
15. 15.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the stem turns to ice (c) the petals turn bluish (d) the water turns green
16. 16.True or false: a sugar cube does not let water climb. (a) True (b) False
17. 17.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
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) the length of the stem (b) time for colour to show (c) the amount of water
19. 19.⚖️ 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) True (b) False
20. 20.⚖️ 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 change it (c) we keep it the same
21. 21.🌼 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
22. 22.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
23. 23.True or false: a cotton thread does not let water climb. (a) True (b) False
24. 24.⚖️ 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 change it (b) we keep it the same (c) we measure it
25. 25.⚖️ 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) True (b) False
26. 26.⚖️ 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) the amount of water (c) the kind of flower (d) time for colour to show
27. 27.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
28. 28.⚖️ 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 change it (b) we measure it (c) we keep it the same
29. 29.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a strip of cloth (c) a rubber eraser (d) a steel spoon
30. 30.🔍 Which is the odd one out? (a) a strip of cloth (b) a paper towel (c) a piece of chalk (d) a plastic ruler
31. 31.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
32. 32.💧 Which of these does not let water climb? (a) a strip of cloth (b) a cotton thread (c) a rubber eraser (d) a paper towel
33. 33.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a glass of water (c) a mirror (d) food colour
34. 34.⚖️ 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 the one thing we change. (a) True (b) False
35. 35.🔍 Which is the odd one out? (a) a rubber eraser (b) a cotton thread (c) a paper towel (d) a strip of cloth
36. 36.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
37. 37.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) yeast (d) a white flower
38. 38.True or false: a cotton thread lets water climb up it. (a) False (b) True
39. 39.True or false: food colour is needed for the coloured flower experiment. (a) False (b) True
40. 40.💧 Which of these lets water climb up it? (a) a glass marble (b) a flower stem (c) a piece of foil (d) a plastic ruler

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