Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 597 · 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.⚖️ 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 keep it the same (b) we measure it (c) we change it
2. 2.🧺 Which of these is not needed for the coloured flower experiment? (a) a mirror (b) a white flower (c) a glass of water (d) a few hours of waiting
3. 3.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
4. 4.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) colour climbs up it (c) it turns to plastic (d) it sinks at once
5. 5.🔍 Which is the odd one out? (a) a glass marble (b) a steel spoon (c) a rubber eraser (d) a piece of chalk
6. 6.⚖️ 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 kept the same. (a) False (b) True
7. 7.⚖️ 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
8. 8.💧 Which of these does not let water climb? (a) a sugar cube (b) a cotton thread (c) a steel spoon (d) a strip of cloth
9. 9.True or false: a strip of cloth lets water climb up it. (a) True (b) False
10. 10.🧺 Which of these is not needed for the coloured flower experiment? (a) turmeric powder (b) a white flower (c) a few hours of waiting (d) a glass of water
11. 11.⚖️ 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) time for colour to show (b) the length of the stem (c) the room it stands in (d) the amount of water
12. 12.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a pet (c) a grown-up (d) a toddler
13. 13.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) yeast (c) a few hours of waiting (d) food colour
14. 14.🔍 Which is the odd one out? (a) a piece of foil (b) a plastic ruler (c) a steel spoon (d) a cotton thread
15. 15.True or false: a steel spoon lets water climb up it. (a) True (b) False
16. 16.⚖️ 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 water (b) the length of the stem (c) time for colour to show (d) the amount of colour
17. 17.💧 Which of these lets water climb up it? (a) a steel spoon (b) a glass marble (c) a plastic ruler (d) a cotton thread
18. 18.True or false: a sugar cube lets water climb up it. (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 room it stands in”? (a) we change it (b) we keep it the same (c) we measure it
20. 20.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
21. 21.💧 Which of these lets water climb up it? (a) a glass marble (b) a steel spoon (c) a piece of chalk (d) a piece of foil
22. 22.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a white flower (c) a glass of water (d) a battery cell
23. 23.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
24. 24.True or false: a rubber eraser lets water climb up it. (a) False (b) True
25. 25.🔍 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
26. 26.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
27. 27.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
28. 28.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
29. 29.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
30. 30.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) magnetism (c) capillary action (d) evaporation
31. 31.🧺 Which of these is not needed for the coloured flower experiment? (a) yeast (b) a glass of water (c) a white flower (d) food colour
32. 32.True or false: a paper towel lets water climb up it. (a) False (b) True
33. 33.⚖️ 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 what we measure. (a) True (b) False
34. 34.⚖️ 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
35. 35.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
36. 36.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a few hours of waiting (d) a mirror
37. 37.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a glass marble (c) a steel spoon (d) a sugar cube
38. 38.🛟 What should you do after handling food colour? (a) wash your hands (b) rub your eyes (c) lick your fingers (d) wipe them on walls
39. 39.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
40. 40.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a magnet (c) food colour (d) a few hours of waiting

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