Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 160 · 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.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
2. 2.⚖️ 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
3. 3.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
4. 4.🌼 How does coloured water reach the petals? (a) it rains on them (b) through tiny stem tubes (c) through the air (d) it is sprayed on
5. 5.🧺 Do we need a mirror 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 length of the stem”? (a) we change it (b) we keep it the same (c) we measure it
7. 7.⚖️ 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 room it stands in (d) the kind of flower
8. 8.🔍 Which is the odd one out? (a) a flower stem (b) a sugar cube (c) a cotton thread (d) a piece of foil
9. 9.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) turmeric powder (c) a white flower (d) a balloon
10. 10.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) nothing ever happens (c) it sinks at once (d) colour climbs up it
11. 11.True or false: a rubber eraser does not let water climb. (a) False (b) True
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a battery cell (d) a glass of water
13. 13.True or false: a piece of chalk lets water climb up it. (a) False (b) True
14. 14.💧 Which of these does not let water climb? (a) a piece of chalk (b) a glass marble (c) a strip of cloth (d) a paper towel
15. 15.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
16. 16.⚖️ 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 kind of flower (c) time for colour to show (d) the amount of colour
17. 17.🧺 Which of these is not needed for the coloured flower experiment? (a) a mirror (b) a glass of water (c) a few hours of waiting (d) food colour
18. 18.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
19. 19.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
20. 20.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) no colour change (c) the flower glows (d) the stem turns blue
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 what we measure. (a) False (b) True
22. 22.True or false: food colour is needed for the coloured flower experiment. (a) True (b) False
23. 23.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a pet (c) a grown-up (d) a toddler
24. 24.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) food colour (c) a white flower (d) a glass of water
25. 25.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
26. 26.🔍 Which is the odd one out? (a) a flower stem (b) a glass marble (c) a cotton thread (d) a piece of chalk
27. 27.🧺 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) yeast (d) food colour
28. 28.True or false: a flower stem does not let water climb. (a) False (b) True
29. 29.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a balloon (c) a few hours of waiting (d) a white flower
30. 30.💧 Which of these lets water climb up it? (a) a steel spoon (b) a piece of foil (c) a plastic ruler (d) a flower stem
31. 31.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) melting (c) capillary action (d) magnetism
32. 32.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) food colour (c) a few hours of waiting (d) a magnet
33. 33.True or false: a strip of cloth lets water climb up it. (a) True (b) False
34. 34.🛟 What should you do after handling food colour? (a) lick your fingers (b) wipe them on walls (c) wash your hands (d) rub your eyes
35. 35.True or false: a steel spoon does not let water climb. (a) False (b) True
36. 36.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
37. 37.True or false: a steel spoon lets water climb up it. (a) True (b) False
38. 38.True or false: a cotton thread lets water climb up it. (a) False (b) True
39. 39.True or false: a sugar cube does not let water climb. (a) False (b) True
40. 40.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True

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