Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 957 · 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 white flower (b) a few hours of waiting (c) a magnet (d) a glass of water
2. 2.🛟 What should you do after handling food colour? (a) wipe them on walls (b) rub your eyes (c) lick your fingers (d) wash your hands
3. 3.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the flower glows (c) the stem turns blue (d) no colour change
4. 4.True or false: a sugar cube lets water climb up it. (a) False (b) True
5. 5.⚖️ 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
6. 6.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals like colour (c) petals lose water to air (d) petals are magnetic
7. 7.🔍 Which is the odd one out? (a) a paper towel (b) a plastic ruler (c) a piece of foil (d) a rubber eraser
8. 8.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
9. 9.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
10. 10.⚖️ 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 keep it the same (c) we measure it
11. 11.🔍 Which is the odd one out? (a) a strip of cloth (b) a piece of chalk (c) a steel spoon (d) a cotton thread
12. 12.💧 Which of these does not let water climb? (a) a plastic ruler (b) a strip of cloth (c) a piece of chalk (d) a sugar cube
13. 13.True or false: a mirror is needed for the coloured flower experiment. (a) False (b) True
14. 14.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a balloon (c) a glass of water (d) a mirror
15. 15.📘 What is it called when water climbs up thin tubes or paper by itself? (a) capillary action (b) evaporation (c) melting (d) magnetism
16. 16.🔮 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
17. 17.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
18. 18.True or false: a magnet is not needed for the coloured flower experiment. (a) False (b) True
19. 19.🔍 Which is the odd one out? (a) a plastic ruler (b) a steel spoon (c) a sugar cube (d) a rubber eraser
20. 20.⚖️ 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 room it stands in (c) the length of the stem (d) the amount of water
21. 21.True or false: a plastic ruler lets water climb up it. (a) True (b) False
22. 22.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a glass marble (c) a sugar cube (d) a rubber eraser
23. 23.🧺 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
24. 24.⚖️ 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
25. 25.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a mirror (c) a magnet (d) food colour
26. 26.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
27. 27.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
28. 28.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the petals turn bluish (c) the water turns green (d) the flower floats away
29. 29.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
30. 30.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is what we measure. (a) False (b) True
31. 31.🌼 How does coloured water reach the petals? (a) it rains on them (b) through tiny stem tubes (c) it is sprayed on (d) through the air
32. 32.⚖️ 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 kind of flower
33. 33.True or false: a piece of foil does not let water climb. (a) False (b) True
34. 34.💧 Which of these does not let water climb? (a) a sugar cube (b) a strip of cloth (c) a rubber eraser (d) a cotton thread
35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) turmeric powder (c) food colour (d) a glass of water
36. 36.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a mirror (c) a few hours of waiting (d) a white flower
37. 37.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
38. 38.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a piece of chalk (c) a plastic ruler (d) a piece of foil
39. 39.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
40. 40.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb

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