Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 657 · 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.🛟 Who should trim the flower stem? (a) a grown-up (b) a pet (c) a toddler (d) anyone, without looking
2. 2.⚖️ 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
3. 3.🧺 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 magnet (d) a white flower
4. 4.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
5. 5.🧺 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
6. 6.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False
7. 7.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
8. 8.🧺 Which of these is not needed for the coloured flower experiment? (a) yeast (b) a glass of water (c) a white flower (d) a few hours of waiting
9. 9.🔮 What would change if the flower stood in plain water? (a) the stem turns blue (b) no colour change (c) the flower glows (d) the petals turn red
10. 10.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
11. 11.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it turns to plastic (c) nothing ever happens (d) it sinks at once
12. 12.⚖️ 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 room it stands in (c) the length of the stem
13. 13.⚖️ 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 kind of flower (c) the length of the stem
14. 14.True or false: a piece of foil lets water climb up it. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a plastic ruler (d) a strip of cloth
16. 16.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
17. 17.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
18. 18.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wipe them on walls (d) wash your hands
19. 19.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) it is sprayed on (c) it rains on them (d) through the air
20. 20.⚖️ 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
21. 21.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
22. 22.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) a balloon (d) a white flower
23. 23.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) food colour (c) a few hours of waiting (d) a white flower
24. 24.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the petals turn bluish (c) the stem turns to ice (d) the water turns green
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 is the odd one out? (a) a steel spoon (b) a cotton thread (c) a rubber eraser (d) a glass marble
27. 27.🧺 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) turmeric powder (d) a white flower
28. 28.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a balloon (c) a mirror (d) a glass of water
29. 29.True or false: a white flower is not needed for the coloured flower experiment. (a) False (b) True
30. 30.⚖️ 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 kind of flower (b) the amount of colour (c) time for colour to show (d) the length of the stem
31. 31.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) a mirror (c) a balloon (d) yeast
32. 32.True or false: a glass of water is 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? Which of these is the one thing we change? (a) the kind of flower (b) the room it stands in (c) the amount of water (d) the length of the stem
34. 34.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
35. 35.🔍 Which is the odd one out? (a) a steel spoon (b) a plastic ruler (c) a sugar cube (d) a piece of foil
36. 36.🔍 Which is the odd one out? (a) a rubber eraser (b) a plastic ruler (c) a steel spoon (d) a paper towel
37. 37.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
38. 38.🧺 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) a mirror (d) food colour
39. 39.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a steel spoon (c) a sugar cube (d) a piece of foil
40. 40.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a glass of water (c) a magnet (d) a white flower

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