Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 509 · 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.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
2. 2.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they all turn green (b) they stay white (c) they fall off at once (d) they turn two colours
3. 3.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) no colour change (c) the stem turns blue (d) the petals turn red
4. 4.⚖️ 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
5. 5.🌼 How does coloured water reach the petals? (a) through the air (b) it rains on them (c) through tiny stem tubes (d) it is sprayed on
6. 6.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a pet (d) a grown-up
7. 7.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a mirror (c) food colour (d) a white flower
8. 8.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a magnet (c) a white flower (d) a battery cell
9. 9.💧 Which of these lets water climb up it? (a) a cotton thread (b) a plastic ruler (c) a steel spoon (d) a piece of foil
10. 10.⚖️ 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
11. 11.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a white flower (c) food colour (d) a few hours of waiting
13. 13.💧 Which of these lets water climb up it? (a) a paper towel (b) a glass marble (c) a plastic ruler (d) a steel spoon
14. 14.True or false: a balloon is not needed for the coloured flower experiment. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) a cotton thread (b) a steel spoon (c) a plastic ruler (d) a rubber eraser
16. 16.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
17. 17.True or false: a few hours of waiting 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? What do we do with “the room it stands in”? (a) we change it (b) we measure it (c) we keep it the same
19. 19.🔍 Which is the odd one out? (a) a glass marble (b) a plastic ruler (c) a steel spoon (d) a piece of chalk
20. 20.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) it sinks at once (c) nothing ever happens (d) colour climbs up it
21. 21.🔍 Which is the odd one out? (a) a strip of cloth (b) a glass marble (c) a plastic ruler (d) a steel spoon
22. 22.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a glass of water (c) turmeric powder (d) a mirror
23. 23.True or false: food colour is needed for the coloured flower experiment. (a) False (b) True
24. 24.⚖️ 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
25. 25.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is the one thing we change. (a) True (b) False
26. 26.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
27. 27.True or false: a plastic ruler lets water climb up it. (a) True (b) False
28. 28.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) food colour (c) a magnet (d) a balloon
29. 29.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
30. 30.True or false: a magnet is needed for the coloured flower experiment. (a) False (b) True
31. 31.True or false: a flower stem does not let water climb. (a) True (b) False
32. 32.🛟 What should you do after handling food colour? (a) rub your eyes (b) wipe them on walls (c) lick your fingers (d) wash your hands
33. 33.🧺 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 mirror
34. 34.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
35. 35.True or false: a steel spoon does not let water climb. (a) False (b) True
36. 36.⚖️ 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
37. 37.⚖️ 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 amount of colour (b) the length of the stem (c) time for colour to show (d) the kind of flower
38. 38.⚖️ 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
39. 39.🧺 Which of these is not needed for the coloured flower experiment? (a) a battery cell (b) a few hours of waiting (c) a white flower (d) a glass of water
40. 40.🔍 Which is the odd one out? (a) a flower stem (b) a strip of cloth (c) a plastic ruler (d) a piece of chalk

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