Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 959 · 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 white flower is needed for the coloured flower experiment. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) a strip of cloth (b) a glass marble (c) a paper towel (d) a sugar cube
3. 3.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
4. 4.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they fall off at once (c) they turn two colours (d) they all turn green
5. 5.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
6. 6.🔍 Which is the odd one out? (a) a glass marble (b) a paper towel (c) a piece of foil (d) a rubber eraser
7. 7.⚖️ 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) True (b) False
8. 8.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
9. 9.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it turns to plastic (c) it sinks at once (d) nothing ever happens
10. 10.🧺 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) a balloon (d) food colour
11. 11.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a white flower (c) yeast (d) a glass of water
12. 12.True or false: a steel spoon lets water climb up it. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) a piece of foil (b) a sugar cube (c) a steel spoon (d) a glass marble
14. 14.⚖️ 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 the one thing we change. (a) True (b) False
15. 15.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
16. 16.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
17. 17.⚖️ 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
18. 18.🛟 Who should trim the flower stem? (a) a grown-up (b) a toddler (c) a pet (d) anyone, without looking
19. 19.🛟 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
20. 20.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) a few hours of waiting (c) a white flower (d) food colour
21. 21.True or false: a glass marble does not let water climb. (a) False (b) True
22. 22.⚖️ 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
23. 23.⚖️ 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) False (b) True
24. 24.⚖️ 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 length of the stem (b) the amount of colour (c) time for colour to show (d) the kind of flower
25. 25.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a few hours of waiting (c) turmeric powder (d) a magnet
26. 26.⚖️ 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 measure it (b) we keep it the same (c) we change it
27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a battery cell (c) a white flower (d) food colour
28. 28.⚖️ 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 keep it the same (c) we change it
29. 29.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the petals turn red (c) the stem turns blue (d) the flower glows
30. 30.💧 Which of these lets water climb up it? (a) a cotton thread (b) a steel spoon (c) a rubber eraser (d) a piece of foil
31. 31.True or false: a cotton thread lets water climb up it. (a) True (b) False
32. 32.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
33. 33.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
34. 34.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the stem turns to ice (c) the water turns green (d) the flower floats away
35. 35.🔍 Which is the odd one out? (a) a strip of cloth (b) a piece of foil (c) a cotton thread (d) a sugar cube
36. 36.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through tiny stem tubes (c) it rains on them (d) through the air
37. 37.True or false: a magnet is needed for the coloured flower experiment. (a) False (b) True
38. 38.⚖️ 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 change it (c) we keep it the same
39. 39.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
40. 40.💧 Which of these does not let water climb? (a) a sugar cube (b) a paper towel (c) a piece of foil (d) a flower stem

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