Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 296 · 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.⚖️ 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
2. 2.True or false: a rubber eraser lets water climb up it. (a) False (b) True
3. 3.💧 Which of these does not let water climb? (a) a flower stem (b) a paper towel (c) a plastic ruler (d) a piece of chalk
4. 4.⚖️ 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 keep it the same (b) we measure it (c) we change it
5. 5.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the stem turns blue (c) no colour change (d) the flower glows
6. 6.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
7. 7.⚖️ 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 measure it (b) we keep it the same (c) we change it
8. 8.⚖️ 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) time for colour to show (d) the kind of flower
9. 9.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
10. 10.True or false: a rubber eraser does not let water climb. (a) False (b) True
11. 11.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) a few hours of waiting (c) a white flower (d) food colour
12. 12.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
13. 13.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a few hours of waiting (c) turmeric powder (d) a white flower
14. 14.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True
15. 15.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) food colour (c) a few hours of waiting (d) turmeric powder
16. 16.🔍 Which is the odd one out? (a) a piece of foil (b) a paper towel (c) a plastic ruler (d) a glass marble
17. 17.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
18. 18.💧 Which of these does not let water climb? (a) a sugar cube (b) a piece of chalk (c) a flower stem (d) a rubber eraser
19. 19.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
20. 20.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) it rains on them (c) through the air (d) through tiny stem tubes
21. 21.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a glass of water (c) a white flower (d) yeast
22. 22.⚖️ 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
23. 23.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a glass of water (c) a white flower (d) a mirror
24. 24.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
25. 25.🔍 Which is the odd one out? (a) a steel spoon (b) a cotton thread (c) a plastic ruler (d) a rubber eraser
26. 26.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
27. 27.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is kept the same. (a) True (b) False
28. 28.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False
29. 29.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a toddler (d) a pet
30. 30.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is kept the same. (a) True (b) False
31. 31.⚖️ 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 water (c) time for colour to show (d) the room it stands in
32. 32.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they fall off at once (b) they turn two colours (c) they stay white (d) they all turn green
33. 33.💧 Which of these lets water climb up it? (a) a glass marble (b) a cotton thread (c) a rubber eraser (d) a plastic ruler
34. 34.True or false: a glass of water is needed for the coloured flower experiment. (a) True (b) False
35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a balloon (c) food colour (d) a white flower
36. 36.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
37. 37.💧 Which of these lets water climb up it? (a) a glass marble (b) a piece of chalk (c) a steel spoon (d) a piece of foil
38. 38.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
39. 39.⚖️ 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
40. 40.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it

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