Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 399 · 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 is the odd one out? (a) a piece of chalk (b) a piece of foil (c) a sugar cube (d) a cotton thread
2. 2.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a glass of water (c) a mirror (d) a balloon
3. 3.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
4. 4.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a battery cell (c) food colour (d) a glass of water
5. 5.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wash your hands (d) wipe them on walls
6. 6.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the flower glows (c) the stem turns blue (d) no colour change
7. 7.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) a balloon (d) a white flower
10. 10.True or false: a rubber eraser does not let water climb. (a) True (b) False
11. 11.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
12. 12.⚖️ 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
13. 13.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) colour climbs up it (c) it sinks at once (d) it turns to plastic
14. 14.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) turmeric powder (b) a few hours of waiting (c) food colour (d) a glass of water
15. 15.True or false: a white flower is not needed for the coloured flower experiment. (a) False (b) True
16. 16.True or false: a piece of chalk does not let water climb. (a) False (b) True
17. 17.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
18. 18.💧 Which of these does not let water climb? (a) a cotton thread (b) a glass marble (c) a sugar cube (d) a strip of cloth
19. 19.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
20. 20.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a pet (d) a toddler
21. 21.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
22. 22.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a magnet (c) food colour (d) a glass of water
23. 23.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) turmeric powder (c) a few hours of waiting (d) a glass of water
24. 24.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
25. 25.True or false: a flower stem does not let water climb. (a) True (b) False
26. 26.⚖️ 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 amount of water (b) the length of the stem (c) the amount of colour (d) the kind of flower
27. 27.⚖️ 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 keep it the same (b) we measure it (c) we change it
28. 28.💧 Which of these does not let water climb? (a) a plastic ruler (b) a flower stem (c) a strip of cloth (d) a cotton thread
29. 29.🔮 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
30. 30.🔍 Which is the odd one out? (a) a piece of foil (b) a plastic ruler (c) a steel spoon (d) a piece of chalk
31. 31.⚖️ 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 change it (b) we keep it the same (c) we measure it
32. 32.True or false: a paper towel does not let water climb. (a) False (b) True
33. 33.🧺 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) food colour (d) a mirror
34. 34.True or false: a plastic ruler lets water climb up it. (a) False (b) True
35. 35.True or false: a glass of water is needed for the coloured flower experiment. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of foil (c) a rubber eraser (d) a sugar cube
37. 37.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a magnet (c) a few hours of waiting (d) food colour
38. 38.🌼 How does coloured water reach the petals? (a) through the air (b) it rains on them (c) through tiny stem tubes (d) it is sprayed on
39. 39.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
40. 40.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed

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