Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 983 · 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 of these is not needed for the coloured flower experiment? (a) food colour (b) a mirror (c) a white flower (d) a glass of water
2. 2.🔍 Which is the odd one out? (a) a plastic ruler (b) a sugar cube (c) a piece of chalk (d) a cotton thread
3. 3.💧 Which of these does not let water climb? (a) a cotton thread (b) a flower stem (c) a plastic ruler (d) a paper towel
4. 4.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
5. 5.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is kept the same. (a) False (b) True
6. 6.🔮 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
7. 7.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a few hours of waiting (c) a glass of water (d) food colour
8. 8.⚖️ 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 amount of colour (c) the length of the stem
9. 9.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) a piece of foil (b) a rubber eraser (c) a plastic ruler (d) a cotton thread
11. 11.🔍 Which is the odd one out? (a) a paper towel (b) a flower stem (c) a steel spoon (d) a cotton thread
12. 12.🛟 What should you do after handling food colour? (a) lick your fingers (b) wash your hands (c) rub your eyes (d) wipe them on walls
13. 13.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
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) the amount of water (b) the length of the stem (c) time for colour to show
15. 15.⚖️ 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
16. 16.🛟 Who should trim the flower stem? (a) a toddler (b) a grown-up (c) a pet (d) anyone, without looking
17. 17.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
18. 18.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) a white flower (c) a glass of water (d) food colour
19. 19.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a white flower (c) a glass of water (d) a balloon
20. 20.🔍 Which is the odd one out? (a) a sugar cube (b) a glass marble (c) a steel spoon (d) a rubber eraser
21. 21.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
22. 22.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
23. 23.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
24. 24.🌼 How does coloured water reach the petals? (a) through the air (b) it rains on them (c) it is sprayed on (d) through tiny stem tubes
25. 25.True or false: a plastic ruler lets water climb up it. (a) True (b) False
26. 26.⚖️ 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) True (b) False
27. 27.🔮 What would change if the flower stood in plain water? (a) the stem turns blue (b) the petals turn red (c) the flower glows (d) no colour change
28. 28.💧 Which of these lets water climb up it? (a) a piece of foil (b) a rubber eraser (c) a strip of cloth (d) a glass marble
29. 29.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) a glass of water (c) food colour (d) a white flower
30. 30.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a glass of water (d) yeast
31. 31.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a steel spoon (c) a glass marble (d) a flower stem
32. 32.⚖️ 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
33. 33.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
34. 34.⚖️ 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 room it stands in (b) the amount of colour (c) the amount of water (d) time for colour to show
35. 35.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) yeast (c) turmeric powder (d) food colour
36. 36.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the petals turn bluish (c) the stem turns to ice (d) the flower floats away
37. 37.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True
38. 38.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
39. 39.True or false: a white flower is needed for the coloured flower experiment. (a) True (b) False
40. 40.True or false: a sugar cube does not let water climb. (a) False (b) True

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