Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 31 · 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 “the kind of flower”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🛟 Who should trim the flower stem? (a) a pet (b) a toddler (c) anyone, without looking (d) a grown-up
3. 3.True or false: a steel spoon lets water climb up it. (a) True (b) False
4. 4.🧺 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) yeast (d) food colour
5. 5.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) turmeric powder (c) food colour (d) a white flower
6. 6.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a glass of water (c) food colour (d) a balloon
7. 7.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) nothing ever happens (c) it sinks at once (d) colour climbs up it
8. 8.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
9. 9.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a glass of water (d) a battery cell
10. 10.🔍 Which is the odd one out? (a) a paper towel (b) a sugar cube (c) a cotton thread (d) a steel spoon
11. 11.🔍 Which is the odd one out? (a) a rubber eraser (b) a glass marble (c) a paper towel (d) a steel spoon
12. 12.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) yeast (c) a white flower (d) a glass of water
13. 13.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
14. 14.🛟 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
15. 15.💧 Which of these lets water climb up it? (a) a cotton thread (b) a plastic ruler (c) a steel spoon (d) a glass marble
16. 16.⚖️ 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 keep it the same (c) we measure it
17. 17.🔍 Which is the odd one out? (a) a rubber eraser (b) a cotton thread (c) a glass marble (d) a piece of foil
18. 18.🔍 Which is the odd one out? (a) a sugar cube (b) a paper towel (c) a flower stem (d) a rubber eraser
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 measure it (b) we keep it the same (c) we change it
20. 20.💧 Which of these does not let water climb? (a) a cotton thread (b) a strip of cloth (c) a sugar cube (d) a piece of foil
21. 21.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the stem turns to ice (c) the flower floats away (d) the water turns green
22. 22.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
23. 23.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
24. 24.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a magnet (c) turmeric powder (d) a white flower
25. 25.⚖️ 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
26. 26.💧 Which of these does not let water climb? (a) a sugar cube (b) a steel spoon (c) a cotton thread (d) a paper towel
27. 27.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
28. 28.⚖️ 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
29. 29.⚖️ 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 the one thing we change. (a) False (b) True
30. 30.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a plastic ruler (c) a glass marble (d) a strip of cloth
31. 31.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) petals lose water to air (c) petals are magnetic (d) the stem is hot
32. 32.🔍 Which is the odd one out? (a) a steel spoon (b) a plastic ruler (c) a piece of foil (d) a sugar cube
33. 33.⚖️ 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
34. 34.⚖️ 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 measure it (b) we change it (c) we keep it the same
35. 35.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
36. 36.⚖️ 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) True (b) False
37. 37.True or false: a sugar cube lets water climb up it. (a) False (b) True
38. 38.⚖️ 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
39. 39.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False
40. 40.⚖️ 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 keep it the same (b) we measure it (c) we change it

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