Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 995 · 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.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the stem turns blue (c) the petals turn red (d) no colour change
2. 2.⚖️ 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 keep it the same (c) we change it
3. 3.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
4. 4.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is kept the same. (a) True (b) False
5. 5.⚖️ 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
6. 6.🔍 Which is the odd one out? (a) a paper towel (b) a cotton thread (c) a flower stem (d) a piece of foil
7. 7.⚖️ 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 what we measure. (a) False (b) True
8. 8.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
9. 9.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a few hours of waiting (c) yeast (d) a magnet
10. 10.💧 Which of these lets water climb up it? (a) a steel spoon (b) a cotton thread (c) a rubber eraser (d) a piece of foil
11. 11.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
12. 12.🧺 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) turmeric powder
13. 13.💧 Which of these does not let water climb? (a) a flower stem (b) a piece of foil (c) a strip of cloth (d) a cotton thread
14. 14.True or false: a strip of cloth lets water climb up it. (a) False (b) True
15. 15.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a magnet (c) food colour (d) a battery cell
16. 16.💧 Which of these does not let water climb? (a) a plastic ruler (b) a cotton thread (c) a strip of cloth (d) a flower stem
17. 17.⚖️ 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 the one thing we change. (a) True (b) False
18. 18.⚖️ 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
19. 19.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a white flower (c) a few hours of waiting (d) a magnet
20. 20.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) turmeric powder (c) a glass of water (d) a white flower
21. 21.🔍 Which is the odd one out? (a) a flower stem (b) a strip of cloth (c) a sugar cube (d) a steel spoon
22. 22.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they fall off at once (b) they stay white (c) they all turn green (d) they turn two colours
23. 23.🌼 How does coloured water reach the petals? (a) it rains on them (b) through the air (c) through tiny stem tubes (d) it is sprayed on
24. 24.💧 Which of these lets water climb up it? (a) a piece of foil (b) a plastic ruler (c) a sugar cube (d) a steel spoon
25. 25.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is kept the same? (a) time for colour to show (b) the length of the stem (c) the kind of flower
26. 26.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it turns to plastic (c) nothing ever happens (d) it sinks at once
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) yeast (d) a white flower
29. 29.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is the one thing we change. (a) False (b) True
30. 30.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a glass of water (c) turmeric powder (d) a mirror
31. 31.⚖️ 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 amount of water (b) the length of the stem (c) time for colour to show
32. 32.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a toddler (c) a grown-up (d) a pet
33. 33.💧 Which of these does not let water climb? (a) a piece of chalk (b) a rubber eraser (c) a cotton thread (d) a sugar cube
34. 34.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
35. 35.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
36. 36.🔍 Which is the odd one out? (a) a sugar cube (b) a glass marble (c) a piece of chalk (d) a cotton thread
37. 37.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) petals lose water to air (c) petals like colour (d) the stem is hot
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 colour”? (a) we keep it the same (b) we measure it (c) we change it
39. 39.True or false: a sugar cube lets water climb up it. (a) True (b) False
40. 40.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it

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