Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 420 · 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 plastic ruler (b) a rubber eraser (c) a piece of chalk (d) a piece of foil
2. 2.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the petals turn red (c) the stem turns blue (d) the flower glows
3. 3.⚖️ 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 what we measure. (a) True (b) False
4. 4.💧 Which of these does not let water climb? (a) a steel spoon (b) a paper towel (c) a cotton thread (d) a piece of chalk
5. 5.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
6. 6.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the kind of flower”? (a) we change it (b) we measure it (c) we keep it the same
7. 7.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
8. 8.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the water turns green (c) the petals turn bluish (d) the flower floats away
9. 9.True or false: a magnet is needed for the coloured flower experiment. (a) False (b) True
10. 10.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
11. 11.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
12. 12.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
13. 13.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
14. 14.🔍 Which is the odd one out? (a) a glass marble (b) a plastic ruler (c) a sugar cube (d) a piece of foil
15. 15.⚖️ 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 change it (c) we keep it the same
16. 16.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
17. 17.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
18. 18.🛟 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
19. 19.True or false: a paper towel does not let water climb. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) a plastic ruler (b) a cotton thread (c) a strip of cloth (d) a sugar cube
21. 21.⚖️ 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) False (b) True
22. 22.True or false: a strip of cloth lets water climb up it. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) a piece of foil (b) a steel spoon (c) a plastic ruler (d) a paper towel
24. 24.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a balloon (c) a white flower (d) a mirror
25. 25.True or false: a flower stem lets water climb up it. (a) True (b) False
26. 26.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a balloon (c) a white flower (d) a few hours of waiting
27. 27.⚖️ 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 length of the stem (b) the room it stands in (c) the kind of flower (d) the amount of colour
28. 28.⚖️ 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 measure it (b) we keep it the same (c) we change it
29. 29.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) turmeric powder (c) a few hours of waiting (d) a white flower
30. 30.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) colour climbs up it (c) nothing ever happens (d) it turns to plastic
31. 31.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is what we measure. (a) True (b) False
32. 32.🧺 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) yeast
33. 33.🔍 Which is the odd one out? (a) a steel spoon (b) a paper towel (c) a strip of cloth (d) a cotton thread
34. 34.True or false: a white flower is not needed for the coloured flower experiment. (a) False (b) True
35. 35.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
36. 36.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a balloon (d) a glass of water
37. 37.💧 Which of these does not let water climb? (a) a cotton thread (b) a flower stem (c) a plastic ruler (d) a paper towel
38. 38.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a few hours of waiting (c) a glass of water (d) a battery cell
39. 39.💧 Which of these does not let water climb? (a) a cotton thread (b) a paper towel (c) a piece of chalk (d) a rubber eraser
40. 40.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a glass of water (c) a battery cell (d) a magnet

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