Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 225 · 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 piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
2. 2.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
3. 3.💧 Which of these lets water climb up it? (a) a steel spoon (b) a rubber eraser (c) a paper towel (d) a glass marble
4. 4.🌼 How does coloured water reach the petals? (a) it rains on them (b) through the air (c) it is sprayed on (d) through tiny stem tubes
5. 5.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is what we measure. (a) False (b) True
6. 6.⚖️ 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) time for colour to show (c) the kind of flower (d) the amount of water
7. 7.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
8. 8.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
9. 9.🛟 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
10. 10.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) capillary action (c) magnetism (d) melting
11. 11.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
12. 12.True or false: a glass marble does not let water climb. (a) False (b) True
13. 13.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
14. 14.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a mirror (c) a white flower (d) turmeric powder
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 balloon (d) food colour
16. 16.True or false: a steel spoon does not let water climb. (a) False (b) True
17. 17.⚖️ 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 measure it (b) we keep it the same (c) we change it
18. 18.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the flower glows (c) the stem turns blue (d) the petals turn red
19. 19.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
20. 20.💧 Which of these does not let water climb? (a) a flower stem (b) a piece of chalk (c) a piece of foil (d) a strip of cloth
21. 21.True or false: a strip of cloth lets water climb up it. (a) False (b) True
22. 22.🧺 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) yeast (d) food colour
23. 23.⚖️ 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) time for colour to show (b) the amount of water (c) the length of the stem (d) the amount of colour
24. 24.⚖️ 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 measure it (b) we change it (c) we keep it the same
25. 25.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) anyone, without looking (d) a grown-up
26. 26.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
27. 27.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
28. 28.⚖️ 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 amount of colour (b) time for colour to show (c) the length of the stem
29. 29.True or false: a piece of foil does not let water climb. (a) True (b) False
30. 30.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) a flower stem (b) a glass marble (c) a strip of cloth (d) a sugar cube
32. 32.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
33. 33.⚖️ 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
34. 34.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a magnet (c) yeast (d) food colour
35. 35.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a balloon (c) a white flower (d) food colour
36. 36.⚖️ 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 change it (b) we measure it (c) we keep it the same
37. 37.🔍 Which is the odd one out? (a) a strip of cloth (b) a glass marble (c) a piece of foil (d) a rubber eraser
38. 38.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
39. 39.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a mirror (c) a balloon (d) a few hours of waiting
40. 40.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the stem turns to ice (c) the petals turn bluish (d) the flower floats away

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