Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 902 · 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 lets water climb up it? (a) a glass marble (b) a steel spoon (c) a rubber eraser (d) a strip of cloth
2. 2.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) True (b) False
3. 3.⚖️ 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
4. 4.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
5. 5.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
6. 6.🧺 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 magnet
7. 7.💧 Which of these lets water climb up it? (a) a piece of chalk (b) a rubber eraser (c) a plastic ruler (d) a piece of foil
8. 8.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a mirror (c) yeast (d) food colour
9. 9.⚖️ 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 length of the stem (b) time for colour to show (c) the room it stands in (d) the kind of flower
10. 10.🧺 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 mirror
11. 11.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
12. 12.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) food colour (c) a balloon (d) a white flower
13. 13.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
14. 14.🔍 Which is the odd one out? (a) a piece of chalk (b) a plastic ruler (c) a steel spoon (d) a glass marble
15. 15.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a paper towel (d) a plastic ruler
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 colour”? (a) we measure it (b) we change it (c) we keep it the same
17. 17.True or false: a piece of foil lets water climb up it. (a) False (b) True
18. 18.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) nothing ever happens (c) colour climbs up it (d) it turns to plastic
19. 19.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
20. 20.True or false: a steel spoon does not let water climb. (a) False (b) True
21. 21.🌼 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
22. 22.🛟 What should you do after handling food colour? (a) wipe them on walls (b) wash your hands (c) lick your fingers (d) rub your eyes
23. 23.🔍 Which is the odd one out? (a) a piece of chalk (b) a glass marble (c) a sugar cube (d) a flower stem
24. 24.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
25. 25.True or false: a strip of cloth does not let water climb. (a) False (b) True
26. 26.🌼 How does coloured water reach the petals? (a) it rains on them (b) it is sprayed on (c) through the air (d) through tiny stem tubes
27. 27.🔮 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 fall off at once (c) they stay white (d) they turn two colours
28. 28.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a battery cell (c) food colour (d) a white flower
29. 29.True or false: a glass marble lets water climb up it. (a) False (b) True
30. 30.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) turmeric powder (c) a glass of water (d) food colour
31. 31.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
32. 32.⚖️ 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 keep it the same (c) we change it
33. 33.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) a magnet (c) a balloon (d) a battery cell
34. 34.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a battery cell (c) a few hours of waiting (d) food colour
35. 35.🛟 Who should trim the flower stem? (a) a toddler (b) a grown-up (c) anyone, without looking (d) a pet
36. 36.True or false: a rubber eraser lets water climb up it. (a) True (b) False
37. 37.⚖️ 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 kind of flower (c) time for colour to show
38. 38.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the flower glows (c) the petals turn red (d) the stem turns blue
39. 39.💧 Which of these does not let water climb? (a) a piece of chalk (b) a flower stem (c) a paper towel (d) a piece of foil
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