Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 69 · 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.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) yeast (c) a white flower (d) a glass of water
3. 3.💧 Which of these lets water climb up it? (a) a piece of chalk (b) a piece of foil (c) a rubber eraser (d) a steel spoon
4. 4.⚖️ 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 change it (b) we keep it the same (c) we measure it
5. 5.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a paper towel (c) a piece of foil (d) a rubber eraser
6. 6.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
7. 7.⚖️ 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 length of the stem (c) the kind of flower
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) time for colour to show (b) the amount of water (c) the amount of colour (d) the length of the stem
9. 9.⚖️ 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) False (b) True
10. 10.True or false: a rubber eraser does not let water climb. (a) False (b) True
11. 11.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
12. 12.🌼 How does coloured water reach the petals? (a) through the air (b) it is sprayed on (c) through tiny stem tubes (d) it rains on them
13. 13.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is the one thing we change. (a) True (b) False
14. 14.🧺 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) food colour
15. 15.🔍 Which is the odd one out? (a) a piece of foil (b) a plastic ruler (c) a steel spoon (d) a sugar cube
16. 16.True or false: a rubber eraser lets water climb up it. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) a plastic ruler (b) a cotton thread (c) a paper towel (d) a strip of cloth
18. 18.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a steel spoon (c) a glass marble (d) a sugar cube
19. 19.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is the one thing we change. (a) False (b) True
20. 20.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) melting (c) capillary action (d) evaporation
21. 21.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) yeast (d) a few hours of waiting
22. 22.⚖️ 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
23. 23.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) food colour (c) a magnet (d) a balloon
24. 24.⚖️ 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) True (b) False
25. 25.⚖️ 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
26. 26.True or false: a mirror is not needed for the coloured flower experiment. (a) False (b) True
27. 27.True or false: a paper towel lets water climb up it. (a) False (b) True
28. 28.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a magnet (c) a mirror (d) a glass of water
29. 29.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
30. 30.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) a magnet (c) a balloon (d) a battery cell
31. 31.🛟 Who should trim the flower stem? (a) a pet (b) a grown-up (c) a toddler (d) anyone, without looking
32. 32.🔍 Which is the odd one out? (a) a piece of foil (b) a steel spoon (c) a rubber eraser (d) a paper towel
33. 33.True or false: a white flower is not needed for the coloured flower experiment. (a) False (b) True
34. 34.💧 Which of these does not let water climb? (a) a strip of cloth (b) a flower stem (c) a paper towel (d) a plastic ruler
35. 35.⚖️ 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
36. 36.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
37. 37.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
38. 38.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
39. 39.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a mirror (c) a few hours of waiting (d) a white flower
40. 40.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed

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