Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 255 · 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 piece of foil (c) a glass marble (d) a strip of cloth
2. 2.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a few hours of waiting (d) a balloon
3. 3.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the stem turns blue (c) the flower glows (d) no colour change
4. 4.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the flower floats away (c) the petals turn bluish (d) the stem turns to ice
5. 5.⚖️ 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) False (b) True
6. 6.True or false: a sugar cube does not let water climb. (a) False (b) True
7. 7.💧 Which of these lets water climb up it? (a) a glass marble (b) a plastic ruler (c) a cotton thread (d) a steel spoon
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) True (b) False
9. 9.⚖️ 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
10. 10.🔍 Which is the odd one out? (a) a strip of cloth (b) a piece of foil (c) a paper towel (d) a piece of chalk
11. 11.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) magnetism (c) capillary action (d) melting
12. 12.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) yeast (c) a white flower (d) a battery cell
13. 13.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
14. 14.⚖️ 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 amount of water
15. 15.💧 Which of these does not let water climb? (a) a rubber eraser (b) a piece of chalk (c) a strip of cloth (d) a paper towel
16. 16.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
17. 17.🔍 Which is the odd one out? (a) a glass marble (b) a paper towel (c) a rubber eraser (d) a steel spoon
18. 18.💧 Which of these does not let water climb? (a) a paper towel (b) a cotton thread (c) a piece of chalk (d) a steel spoon
19. 19.⚖️ 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 change it (c) we keep it the same
20. 20.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) a few hours of waiting (c) food colour (d) a white flower
21. 21.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
22. 22.True or false: a paper towel does not let water climb. (a) False (b) True
23. 23.True or false: a piece of chalk lets water climb up it. (a) False (b) True
24. 24.⚖️ 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 amount of colour (b) the kind of flower (c) time for colour to show (d) the room it stands in
25. 25.True or false: a mirror is not needed for the coloured flower experiment. (a) False (b) True
26. 26.True or false: yeast is not needed for the coloured flower experiment. (a) False (b) True
27. 27.⚖️ 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) False (b) True
28. 28.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
29. 29.⚖️ 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) False (b) True
30. 30.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) nothing ever happens (c) colour climbs up it (d) it sinks at once
31. 31.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True
32. 32.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) a grown-up (d) anyone, without looking
33. 33.⚖️ 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 the one thing we change. (a) False (b) True
34. 34.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
35. 35.⚖️ 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 length of the stem (d) the amount of colour
36. 36.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
37. 37.🛟 What should you do after handling food colour? (a) wash your hands (b) rub your eyes (c) lick your fingers (d) wipe them on walls
38. 38.True or false: a piece of foil lets water climb up it. (a) True (b) False
39. 39.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a few hours of waiting (d) a mirror
40. 40.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) turmeric powder (d) a white flower

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