Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 368 · 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.🧺 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 few hours of waiting (d) turmeric powder
2. 2.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the length of the stem is kept the same. (a) False (b) True
3. 3.⚖️ 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 change it (c) we keep it the same
4. 4.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
5. 5.🔍 Which is the odd one out? (a) a plastic ruler (b) a sugar cube (c) a paper towel (d) a cotton thread
6. 6.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
7. 7.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
8. 8.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
9. 9.True or false: turmeric powder is needed for the coloured flower experiment. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) a steel spoon (b) a glass marble (c) a flower stem (d) a plastic ruler
11. 11.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) food colour (c) a white flower (d) a battery cell
12. 12.🛟 Who should trim the flower stem? (a) a pet (b) anyone, without looking (c) a grown-up (d) a toddler
13. 13.🧺 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) a battery cell
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) time for colour to show (b) the length of the stem (c) the amount of colour
15. 15.⚖️ 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
16. 16.🔍 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
17. 17.True or false: food colour is needed for the coloured flower experiment. (a) True (b) False
18. 18.⚖️ 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) time for colour to show (c) the amount of water
19. 19.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
20. 20.True or false: a mirror is not needed for the coloured flower experiment. (a) False (b) True
21. 21.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a magnet (c) a white flower (d) a balloon
22. 22.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
23. 23.🛟 What should you do after handling food colour? (a) wash your hands (b) lick your fingers (c) rub your eyes (d) wipe them on walls
24. 24.True or false: a plastic ruler lets water climb up it. (a) False (b) True
25. 25.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a mirror (c) a white flower (d) a few hours of waiting
26. 26.⚖️ 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 kind of flower (b) time for colour to show (c) the length of the stem
27. 27.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
28. 28.True or false: a paper towel does not let water climb. (a) False (b) True
29. 29.⚖️ 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 keep it the same (c) we measure it
30. 30.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it turns to plastic (c) colour climbs up it (d) it sinks at once
31. 31.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
32. 32.🔍 Which is the odd one out? (a) a flower stem (b) a strip of cloth (c) a steel spoon (d) a sugar cube
33. 33.⚖️ 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) False (b) True
34. 34.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
35. 35.🧺 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) a magnet
36. 36.🌼 How does coloured water reach the petals? (a) it rains on them (b) it is sprayed on (c) through tiny stem tubes (d) through the air
37. 37.⚖️ 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) True (b) False
38. 38.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
39. 39.True or false: a sugar cube does not let water climb. (a) False (b) True
40. 40.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False

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