Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 278 · 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.True or false: a piece of foil lets water climb up it. (a) False (b) True
2. 2.💧 Which of these does not let water climb? (a) a plastic ruler (b) a piece of chalk (c) a sugar cube (d) a paper towel
3. 3.🔍 Which is the odd one out? (a) a cotton thread (b) a rubber eraser (c) a strip of cloth (d) a piece of chalk
4. 4.🧺 Which of these is not needed for the coloured flower experiment? (a) a battery cell (b) a white flower (c) a few hours of waiting (d) a glass of water
5. 5.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
6. 6.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
7. 7.⚖️ 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 change it (c) we keep it the same
8. 8.🔍 Which is the odd one out? (a) a cotton thread (b) a paper towel (c) a plastic ruler (d) a sugar cube
9. 9.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) a few hours of waiting (d) yeast
10. 10.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) it turns to plastic (c) colour climbs up it (d) nothing ever happens
11. 11.⚖️ 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 change it (c) we measure it
12. 12.🔍 Which is the odd one out? (a) a piece of foil (b) a piece of chalk (c) a strip of cloth (d) a paper towel
13. 13.⚖️ 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) the kind of flower (b) time for colour to show (c) the amount of water (d) the length of the stem
14. 14.True or false: a plastic ruler lets water climb up it. (a) False (b) True
15. 15.🧺 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) a few hours of waiting (d) a battery cell
16. 16.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the room it stands in is kept the same. (a) True (b) False
17. 17.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
18. 18.💧 Which of these lets water climb up it? (a) a glass marble (b) a piece of chalk (c) a plastic ruler (d) a piece of foil
19. 19.💧 Which of these does not let water climb? (a) a cotton thread (b) a sugar cube (c) a flower stem (d) a steel spoon
20. 20.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) True (b) False
21. 21.🌼 How does coloured water reach the petals? (a) through the air (b) it is sprayed on (c) through tiny stem tubes (d) it rains on them
22. 22.⚖️ 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) the room it stands in (c) the amount of water (d) time for colour to show
23. 23.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) a magnet (c) yeast (d) turmeric powder
24. 24.🛟 What should you do after handling food colour? (a) wipe them on walls (b) wash your hands (c) rub your eyes (d) lick your fingers
25. 25.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the stem turns blue (c) the flower glows (d) the petals turn red
26. 26.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a pet (d) a grown-up
27. 27.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a white flower (c) a glass of water (d) a balloon
28. 28.True or false: a piece of chalk lets water climb up it. (a) True (b) False
29. 29.⚖️ 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 measure it (c) we keep it the same
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) a few hours of waiting
31. 31.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a flower stem (d) a piece of foil
32. 32.💧 Which of these does not let water climb? (a) a piece of chalk (b) a flower stem (c) a cotton thread (d) a piece of foil
33. 33.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a magnet (c) a balloon (d) a glass of water
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) time for colour to show (c) the amount of colour
35. 35.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
36. 36.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a glass of water (c) a few hours of waiting (d) a mirror
37. 37.🧺 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) a mirror (d) a white flower
38. 38.🔮 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 stay white (c) they turn two colours (d) they fall off at once
39. 39.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a white flower (c) a glass of water (d) turmeric powder
40. 40.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a balloon (c) a glass of water (d) food colour

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