Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 470 · 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.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
2. 2.💧 Which of these does not let water climb? (a) a piece of chalk (b) a paper towel (c) a steel spoon (d) a strip of cloth
3. 3.True or false: a strip of cloth does not let water climb. (a) True (b) False
4. 4.⚖️ 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 room it stands in (c) the length of the stem (d) the amount of colour
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 kept the same. (a) True (b) False
6. 6.🧺 Which of these is not needed for the coloured flower experiment? (a) turmeric powder (b) a few hours of waiting (c) a white flower (d) a glass of water
7. 7.🔍 Which is the odd one out? (a) a glass marble (b) a rubber eraser (c) a steel spoon (d) a strip of cloth
8. 8.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
9. 9.💧 Which of these does not let water climb? (a) a cotton thread (b) a piece of chalk (c) a paper towel (d) a glass marble
10. 10.🔍 Which is the odd one out? (a) a flower stem (b) a cotton thread (c) a strip of cloth (d) a steel spoon
11. 11.🛟 Who should trim the flower stem? (a) a pet (b) a toddler (c) a grown-up (d) anyone, without looking
12. 12.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
13. 13.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
14. 14.True or false: yeast is not needed for the coloured flower experiment. (a) False (b) True
15. 15.⚖️ 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 keep it the same (b) we measure it (c) we change it
16. 16.🧺 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) food colour (d) a battery cell
17. 17.⚖️ 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 length of the stem (b) the amount of water (c) time for colour to show
18. 18.⚖️ 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 change it (c) we keep it the same
19. 19.⚖️ 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
20. 20.⚖️ 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) the amount of water (d) time for colour to show
21. 21.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the water turns green (c) the petals turn bluish (d) the flower floats away
22. 22.🌼 Why do the petals keep pulling water up the stem? (a) petals lose water to air (b) petals like colour (c) the stem is hot (d) petals are magnetic
23. 23.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a mirror (c) a white flower (d) a magnet
24. 24.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) False (b) True
25. 25.🔍 Which is the odd one out? (a) a sugar cube (b) a piece of chalk (c) a paper towel (d) a glass marble
26. 26.🔍 Which is the odd one out? (a) a steel spoon (b) a sugar cube (c) a piece of foil (d) a rubber eraser
27. 27.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
28. 28.🛟 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
29. 29.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
30. 30.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) food colour (c) a few hours of waiting (d) a white flower
31. 31.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
32. 32.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
33. 33.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
34. 34.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is kept the same. (a) False (b) True
35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) a mirror (d) a few hours of waiting
36. 36.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
37. 37.⚖️ 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
38. 38.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) it sinks at once (c) colour climbs up it (d) nothing ever happens
39. 39.🧺 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) yeast (d) a white flower
40. 40.⚖️ 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) True (b) False

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