Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 777 · 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 not needed for the coloured flower experiment. (a) True (b) False
2. 2.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
3. 3.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
4. 4.True or false: a magnet is needed for the coloured flower experiment. (a) False (b) True
5. 5.🧺 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
6. 6.⚖️ 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 amount of colour
7. 7.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
8. 8.True or false: a steel spoon does not let water climb. (a) False (b) True
9. 9.⚖️ 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 kind of flower (c) the length of the stem (d) time for colour to show
10. 10.🛟 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
11. 11.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a battery cell (c) a glass of water (d) food colour
12. 12.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
13. 13.💧 Which of these does not let water climb? (a) a piece of chalk (b) a flower stem (c) a glass marble (d) a sugar cube
14. 14.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a magnet (c) food colour (d) yeast
15. 15.🔮 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
16. 16.🧺 Which of these is not needed for the coloured flower experiment? (a) turmeric powder (b) a glass of water (c) a white flower (d) food colour
17. 17.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
18. 18.⚖️ 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
19. 19.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a toddler (c) a grown-up (d) a pet
20. 20.⚖️ 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 change it (b) we measure it (c) we keep it the same
21. 21.True or false: a sugar cube lets water climb up it. (a) False (b) True
22. 22.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a few hours of waiting (d) yeast
23. 23.💧 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
24. 24.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
25. 25.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
26. 26.True or false: a rubber eraser lets water climb up it. (a) True (b) False
27. 27.⚖️ 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 what we measure. (a) True (b) False
28. 28.True or false: a plastic ruler does not let water climb. (a) False (b) True
29. 29.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
30. 30.⚖️ 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) the kind of flower (c) time for colour to show
31. 31.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a battery cell (c) turmeric powder (d) a white flower
32. 32.💧 Which of these does not let water climb? (a) a piece of chalk (b) a flower stem (c) a plastic ruler (d) a sugar cube
33. 33.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
34. 34.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
35. 35.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a battery cell (c) turmeric powder (d) a few hours of waiting
36. 36.True or false: a steel spoon lets water climb up it. (a) False (b) True
37. 37.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
38. 38.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the water turns green (c) the stem turns to ice (d) the petals turn bluish
39. 39.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) turmeric powder (b) a few hours of waiting (c) a glass of water (d) a white flower
40. 40.True or false: yeast is not needed for the coloured flower experiment. (a) False (b) True

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