Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 789 · 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.🛟 What should you do after handling food colour? (a) wipe them on walls (b) rub your eyes (c) lick your fingers (d) wash your hands
2. 2.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
3. 3.💧 Which of these does not let water climb? (a) a paper towel (b) a strip of cloth (c) a flower stem (d) a plastic ruler
4. 4.True or false: a rubber eraser lets water climb up it. (a) False (b) True
5. 5.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
6. 6.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
7. 7.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is what we measure. (a) False (b) True
8. 8.🧺 Which of these is not needed for the coloured flower experiment? (a) turmeric powder (b) a glass of water (c) food colour (d) a few hours of waiting
9. 9.⚖️ 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
10. 10.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a white flower (c) a magnet (d) a mirror
11. 11.⚖️ 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 keep it the same (c) we change it
12. 12.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they turn two colours (b) they all turn green (c) they stay white (d) they fall off at once
13. 13.🔍 Which is the odd one out? (a) a sugar cube (b) a steel spoon (c) a cotton thread (d) a piece of chalk
14. 14.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
15. 15.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
16. 16.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a cotton thread (d) a plastic ruler
17. 17.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) petals lose water to air (c) the stem is hot (d) petals are magnetic
18. 18.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) a glass of water (c) food colour (d) a white flower
19. 19.⚖️ 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 keep it the same (c) we change it
20. 20.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a magnet (c) a few hours of waiting (d) food colour
21. 21.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
22. 22.🧺 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 white flower (d) a battery cell
23. 23.🛟 Who should trim the flower stem? (a) a grown-up (b) a toddler (c) anyone, without looking (d) a pet
24. 24.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is the one thing we change. (a) True (b) False
25. 25.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
26. 26.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through the air (c) it rains on them (d) through tiny stem tubes
27. 27.⚖️ 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 length of the stem (c) time for colour to show (d) the room it stands in
28. 28.⚖️ 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
29. 29.True or false: a magnet is not needed for the coloured flower experiment. (a) False (b) True
30. 30.💧 Which of these lets water climb up it? (a) a glass marble (b) a piece of foil (c) a sugar cube (d) a steel spoon
31. 31.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of foil (c) a rubber eraser (d) a flower stem
32. 32.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
33. 33.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
34. 34.True or false: a piece of chalk does not let water climb. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) a strip of cloth (b) a steel spoon (c) a glass marble (d) a rubber eraser
36. 36.⚖️ 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
37. 37.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
38. 38.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) False (b) True
39. 39.True or false: a flower stem does not let water climb. (a) False (b) True
40. 40.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) a few hours of waiting (c) a white flower (d) a glass of water

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