Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 510 · 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.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a few hours of waiting (c) a white flower (d) a mirror
2. 2.🔍 Which is the odd one out? (a) a steel spoon (b) a flower stem (c) a plastic ruler (d) a glass marble
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) food colour (c) a white flower (d) a few hours of waiting
4. 4.⚖️ 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
5. 5.True or false: a cotton thread lets water climb up it. (a) True (b) False
6. 6.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
7. 7.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a battery cell (c) a few hours of waiting (d) a white flower
8. 8.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) a few hours of waiting (d) yeast
9. 9.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they all turn green (b) they stay white (c) they turn two colours (d) they fall off at once
10. 10.🔍 Which is the odd one out? (a) a rubber eraser (b) a piece of chalk (c) a steel spoon (d) a plastic ruler
11. 11.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
12. 12.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
13. 13.True or false: a battery cell is not needed for the coloured flower experiment. (a) False (b) True
14. 14.🌼 How does coloured water reach the petals? (a) it rains on them (b) it is sprayed on (c) through tiny stem tubes (d) through the air
15. 15.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) True (b) False
16. 16.True or false: a sugar cube lets water climb up it. (a) True (b) False
17. 17.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) petals lose water to air (c) petals like colour (d) the stem is hot
18. 18.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
19. 19.⚖️ 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 kind of flower (b) time for colour to show (c) the length of the stem
20. 20.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
21. 21.⚖️ 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 change it (c) we measure it
22. 22.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
23. 23.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) yeast (c) turmeric powder (d) a glass of water
24. 24.⚖️ 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 change it (c) we measure it
25. 25.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
26. 26.🔍 Which is the odd one out? (a) a sugar cube (b) a steel spoon (c) a flower stem (d) a strip of cloth
27. 27.⚖️ 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
28. 28.True or false: yeast is not needed for the coloured flower experiment. (a) False (b) True
29. 29.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a few hours of waiting (c) turmeric powder (d) a glass of water
30. 30.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) it sinks at once (c) colour climbs up it (d) nothing ever happens
31. 31.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a piece of foil (c) a steel spoon (d) a strip of cloth
32. 32.⚖️ 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
33. 33.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
34. 34.True or false: a piece of foil lets water climb up it. (a) False (b) True
35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a balloon (c) a few hours of waiting (d) food colour
36. 36.True or false: a cotton thread does not let water climb. (a) False (b) True
37. 37.🛟 What should you do after handling food colour? (a) rub your eyes (b) lick your fingers (c) wash your hands (d) wipe them on walls
38. 38.⚖️ 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 colour (b) time for colour to show (c) the length of the stem (d) the room it stands in
39. 39.💧 Which of these does not let water climb? (a) a cotton thread (b) a glass marble (c) a piece of chalk (d) a strip of cloth
40. 40.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed

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