Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 605 · 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 magnet is needed for the coloured flower experiment. (a) True (b) False
2. 2.⚖️ 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 change it (c) we keep it the same
3. 3.🔍 Which is the odd one out? (a) a piece of foil (b) a rubber eraser (c) a glass marble (d) a strip of cloth
4. 4.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) it is sprayed on (c) through the air (d) it rains on them
5. 5.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
6. 6.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) a few hours of waiting (c) food colour (d) a white flower
7. 7.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
8. 8.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is what we measure. (a) False (b) True
9. 9.💧 Which of these does not let water climb? (a) a piece of chalk (b) a steel spoon (c) a sugar cube (d) a flower stem
10. 10.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is what we measure? (a) time for colour to show (b) the amount of colour (c) the room it stands in (d) the amount of water
11. 11.⚖️ 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
12. 12.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
13. 13.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
14. 14.🔍 Which is the odd one out? (a) a cotton thread (b) a rubber eraser (c) a plastic ruler (d) a steel spoon
15. 15.⚖️ 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
16. 16.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
17. 17.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a white flower (c) turmeric powder (d) food colour
18. 18.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a toddler (d) a pet
19. 19.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
20. 20.💧 Which of these does not let water climb? (a) a strip of cloth (b) a sugar cube (c) a cotton thread (d) a piece of foil
21. 21.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is what we measure. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) a sugar cube (b) a glass marble (c) a plastic ruler (d) a piece of foil
23. 23.⚖️ 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 change it (b) we keep it the same (c) we measure it
24. 24.🔍 Which is the odd one out? (a) a cotton thread (b) a flower stem (c) a glass marble (d) a paper towel
25. 25.True or false: a glass marble lets water climb up it. (a) True (b) False
26. 26.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) yeast (c) a glass of water (d) a white flower
27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) a white flower (c) food colour (d) a glass of water
28. 28.⚖️ 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) the amount of colour (d) the room it stands in
29. 29.⚖️ 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 what we measure. (a) True (b) False
30. 30.True or false: a sugar cube lets water climb up it. (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 kept the same? (a) time for colour to show (b) the amount of colour (c) the length of the stem
32. 32.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
33. 33.⚖️ 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
34. 34.⚖️ 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) True (b) False
35. 35.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
36. 36.🛟 What should you do after handling food colour? (a) wash your hands (b) wipe them on walls (c) lick your fingers (d) rub your eyes
37. 37.⚖️ 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
38. 38.True or false: a paper towel does not let water climb. (a) True (b) False
39. 39.True or false: a flower stem does not let water climb. (a) False (b) True
40. 40.⚖️ 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) False (b) True

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