Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 723 · 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.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
2. 2.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
3. 3.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
4. 4.⚖️ 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 what we measure. (a) True (b) False
5. 5.⚖️ 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
6. 6.⚖️ 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 the one thing we change. (a) False (b) True
7. 7.🔮 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
8. 8.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a magnet (c) food colour (d) a few hours of waiting
9. 9.💧 Which of these does not let water climb? (a) a piece of chalk (b) a flower stem (c) a glass marble (d) a cotton thread
10. 10.True or false: a piece of chalk lets water climb up it. (a) True (b) False
11. 11.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a battery cell (c) food colour (d) a few hours of waiting
13. 13.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) a magnet (c) a mirror (d) a balloon
14. 14.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
15. 15.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of foil (c) a plastic ruler (d) a paper towel
16. 16.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) food colour (c) a glass of water (d) a white flower
17. 17.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
18. 18.🔍 Which is the odd one out? (a) a glass marble (b) a strip of cloth (c) a rubber eraser (d) a plastic ruler
19. 19.🔍 Which is the odd one out? (a) a strip of cloth (b) a sugar cube (c) a piece of chalk (d) a steel spoon
20. 20.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a mirror (c) a glass of water (d) a few hours of waiting
21. 21.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) no colour change (c) the petals turn red (d) the stem turns blue
22. 22.⚖️ 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) time for colour to show (c) the amount of colour (d) the length of the stem
23. 23.True or false: a cotton thread lets water climb up it. (a) True (b) False
24. 24.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
25. 25.🔮 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 fall off at once (c) they stay white (d) they turn two colours
26. 26.🌼 How does coloured water reach the petals? (a) it rains on them (b) it is sprayed on (c) through the air (d) through tiny stem tubes
27. 27.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
28. 28.🧺 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 magnet
29. 29.True or false: turmeric powder is 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 length of the stem (b) the room it stands in (c) the amount of colour (d) time for colour to show
31. 31.🛟 Who should trim the flower stem? (a) a pet (b) anyone, without looking (c) a toddler (d) a grown-up
32. 32.⚖️ 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) False (b) True
33. 33.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
34. 34.💧 Which of these lets water climb up it? (a) a piece of foil (b) a rubber eraser (c) a plastic ruler (d) a cotton thread
35. 35.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) yeast (c) turmeric powder (d) a white flower
36. 36.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
37. 37.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a few hours of waiting (c) a magnet (d) yeast
38. 38.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
39. 39.🛟 What should you do after handling food colour? (a) wash your hands (b) wipe them on walls (c) rub your eyes (d) lick your fingers
40. 40.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it

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