Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 61 · 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.🧺 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 balloon
2. 2.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a piece of foil (c) a piece of chalk (d) a plastic ruler
3. 3.💧 Which of these does not let water climb? (a) a plastic ruler (b) a cotton thread (c) a piece of chalk (d) a sugar cube
4. 4.⚖️ 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
5. 5.True or false: a sugar cube lets water climb up it. (a) False (b) True
6. 6.⚖️ 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) False (b) True
7. 7.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
8. 8.⚖️ 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 water (b) the kind of flower (c) the length of the stem (d) time for colour to show
9. 9.💧 Which of these lets water climb up it? (a) a piece of foil (b) a rubber eraser (c) a steel spoon (d) a strip of cloth
10. 10.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
11. 11.💧 Which of these does not let water climb? (a) a sugar cube (b) a paper towel (c) a piece of chalk (d) a steel spoon
12. 12.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
13. 13.🧺 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 few hours of waiting (d) a battery cell
14. 14.🌼 How does coloured water reach the petals? (a) through the air (b) it rains on them (c) through tiny stem tubes (d) it is sprayed on
15. 15.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
16. 16.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a sugar cube (d) a glass marble
17. 17.🔍 Which is the odd one out? (a) a sugar cube (b) a plastic ruler (c) a paper towel (d) a piece of chalk
18. 18.🔮 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 all turn green (c) they turn two colours (d) they fall off at once
19. 19.🔍 Which is the odd one out? (a) a sugar cube (b) a rubber eraser (c) a flower stem (d) a paper towel
20. 20.🛟 Who should trim the flower stem? (a) a toddler (b) a grown-up (c) a pet (d) anyone, without looking
21. 21.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True
22. 22.True or false: a white flower is not needed for the coloured flower experiment. (a) False (b) True
23. 23.🧺 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) food colour (d) turmeric powder
24. 24.True or false: a rubber eraser does not let water climb. (a) True (b) False
25. 25.True or false: a flower stem does not let water climb. (a) False (b) True
26. 26.⚖️ 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) time for colour to show (c) the amount of colour
27. 27.True or false: a piece of foil lets water climb up it. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) a flower stem (b) a strip of cloth (c) a paper towel (d) a steel spoon
29. 29.⚖️ 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 keep it the same (b) we change it (c) we measure it
30. 30.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the flower glows (c) no colour change (d) the stem turns blue
31. 31.🔍 Which is the odd one out? (a) a cotton thread (b) a piece of chalk (c) a flower stem (d) a piece of foil
32. 32.⚖️ 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
33. 33.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
34. 34.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a mirror (c) food colour (d) a white flower
35. 35.🔍 Which is the odd one out? (a) a rubber eraser (b) a piece of foil (c) a cotton thread (d) a glass marble
36. 36.⚖️ 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) False (b) True
37. 37.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
38. 38.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False
39. 39.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
40. 40.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb

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