Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 697 · 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.⚖️ 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
3. 3.True or false: a flower stem does not let water climb. (a) False (b) True
4. 4.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a white flower (c) yeast (d) a few hours of waiting
5. 5.🛟 What should you do after handling food colour? (a) lick your fingers (b) wash your hands (c) wipe them on walls (d) rub your eyes
6. 6.🔍 Which is the odd one out? (a) a strip of cloth (b) a paper towel (c) a piece of chalk (d) a glass marble
7. 7.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
8. 8.True or false: a cotton thread lets water climb up it. (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: time for colour to show is kept the same. (a) False (b) True
10. 10.🧺 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 white flower (d) turmeric powder
11. 11.⚖️ 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
12. 12.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
13. 13.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) magnetism (c) capillary action (d) evaporation
14. 14.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a pet (c) a grown-up (d) a toddler
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 few hours of waiting (d) yeast
16. 16.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
17. 17.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they turn two colours (c) they all turn green (d) they fall off at once
18. 18.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
19. 19.💧 Which of these lets water climb up it? (a) a piece of foil (b) a strip of cloth (c) a steel spoon (d) a glass marble
20. 20.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) a few hours of waiting (d) turmeric powder
21. 21.⚖️ 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 measure it (b) we keep it the same (c) we change it
22. 22.🔮 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
23. 23.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a magnet (c) a glass of water (d) a white flower
24. 24.💧 Which of these lets water climb up it? (a) a piece of foil (b) a rubber eraser (c) a paper towel (d) a plastic ruler
25. 25.💧 Which of these does not let water climb? (a) a strip of cloth (b) a rubber eraser (c) a flower stem (d) a cotton thread
26. 26.💧 Which of these lets water climb up it? (a) a glass marble (b) a rubber eraser (c) a piece of foil (d) a sugar cube
27. 27.True or false: a rubber eraser does not let water climb. (a) False (b) True
28. 28.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the stem turns to ice (c) the petals turn bluish (d) the water turns green
29. 29.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
30. 30.True or false: a glass marble lets water climb up it. (a) True (b) False
31. 31.⚖️ 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) time for colour to show (c) the room it stands in (d) the kind of flower
32. 32.True or false: a steel spoon lets water climb up it. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) a plastic ruler (b) a flower stem (c) a steel spoon (d) a piece of foil
34. 34.🔍 Which is the odd one out? (a) a piece of chalk (b) a strip of cloth (c) a paper towel (d) a steel spoon
35. 35.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a battery cell (c) a few hours of waiting (d) a magnet
36. 36.💧 Which of these does not let water climb? (a) a steel spoon (b) a cotton thread (c) a sugar cube (d) a piece of chalk
37. 37.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a few hours of waiting (c) food colour (d) a mirror
38. 38.🔍 Which is the odd one out? (a) a flower stem (b) a sugar cube (c) a strip of cloth (d) a piece of foil
39. 39.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
40. 40.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is kept the same. (a) False (b) True

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