Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 909 · 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.💧 Which of these does not let water climb? (a) a piece of chalk (b) a strip of cloth (c) a flower stem (d) a piece of foil
2. 2.True or false: a piece of chalk lets water climb up it. (a) True (b) False
3. 3.True or false: food colour is needed for the coloured flower experiment. (a) True (b) False
4. 4.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a toddler (d) a pet
5. 5.True or false: a balloon is needed for the coloured flower experiment. (a) False (b) True
6. 6.💧 Which of these does not let water climb? (a) a piece of chalk (b) a cotton thread (c) a steel spoon (d) a strip of cloth
7. 7.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
8. 8.⚖️ 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
9. 9.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is what we measure. (a) True (b) False
10. 10.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
11. 11.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
12. 12.🔍 Which is the odd one out? (a) a strip of cloth (b) a glass marble (c) a piece of chalk (d) a flower stem
13. 13.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a battery cell (c) a mirror (d) food colour
14. 14.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a battery cell (c) a white flower (d) a few hours of waiting
15. 15.True or false: a plastic ruler does not let water climb. (a) True (b) False
16. 16.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
17. 17.True or false: a sugar cube lets water climb up it. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) a plastic ruler (b) a sugar cube (c) a piece of foil (d) a rubber eraser
19. 19.🧺 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 balloon
20. 20.⚖️ 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) False (b) True
21. 21.🛟 What should you do after handling food colour? (a) wash your hands (b) wipe them on walls (c) rub your eyes (d) lick your fingers
22. 22.True or false: a balloon is not needed for the coloured flower experiment. (a) True (b) False
23. 23.⚖️ 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 keep it the same (c) we change it
24. 24.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) it turns to plastic (c) nothing ever happens (d) colour climbs up it
25. 25.🔍 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 water turns green (d) the petals turn bluish
26. 26.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) a white flower (d) a battery cell
28. 28.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a white flower (d) a magnet
29. 29.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
30. 30.True or false: a piece of foil lets water climb up it. (a) False (b) True
31. 31.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
32. 32.💧 Which of these lets water climb up it? (a) a steel spoon (b) a glass marble (c) a strip of cloth (d) a piece of foil
33. 33.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a magnet (c) a balloon (d) a white flower
34. 34.⚖️ 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) the amount of water (c) time for colour to show
35. 35.True or false: food colour is not needed for the coloured flower experiment. (a) False (b) True
36. 36.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals are magnetic (c) petals like colour (d) petals lose water to air
37. 37.True or false: a glass marble lets water climb up it. (a) True (b) False
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed

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