Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 754 · 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 battery cell is not needed for the coloured flower experiment. (a) False (b) True
2. 2.🔍 Which is the odd one out? (a) a paper towel (b) a steel spoon (c) a piece of chalk (d) a sugar cube
3. 3.🛟 What should you do after handling food colour? (a) wash your hands (b) lick your fingers (c) wipe them on walls (d) rub your eyes
4. 4.⚖️ 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 amount of colour (c) time for colour to show (d) the length of the stem
5. 5.⚖️ 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 the one thing we change. (a) True (b) False
6. 6.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) anyone, without looking (d) a grown-up
7. 7.⚖️ 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 keep it the same (b) we measure it (c) we change it
8. 8.🔮 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 fall off at once (d) they turn two colours
9. 9.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
10. 10.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
11. 11.True or false: a paper towel does not let water climb. (a) True (b) False
12. 12.True or false: a piece of chalk does not let water climb. (a) False (b) True
13. 13.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) turmeric powder (d) a glass of water
14. 14.💧 Which of these does not let water climb? (a) a paper towel (b) a piece of chalk (c) a sugar cube (d) a rubber eraser
15. 15.True or false: a piece of foil does not let water climb. (a) True (b) False
16. 16.⚖️ 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
17. 17.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the petals turn red (c) the stem turns blue (d) no colour change
18. 18.🔍 Which is the odd one out? (a) a piece of foil (b) a piece of chalk (c) a glass marble (d) a rubber eraser
19. 19.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) petals lose water to air (c) petals like colour (d) the stem is hot
20. 20.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) yeast (c) a magnet (d) a battery cell
21. 21.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a glass marble (c) a sugar cube (d) a steel spoon
22. 22.🔍 Which is the odd one out? (a) a sugar cube (b) a plastic ruler (c) a steel spoon (d) a rubber eraser
23. 23.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
24. 24.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
25. 25.⚖️ 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 measure it (c) we change it
26. 26.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of foil (c) a rubber eraser (d) a flower stem
27. 27.⚖️ 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 length of the stem (c) the kind of flower (d) the amount of colour
28. 28.True or false: a flower stem lets water climb up it. (a) False (b) True
29. 29.⚖️ 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
30. 30.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
31. 31.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a few hours of waiting (c) a battery cell (d) food colour
32. 32.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a magnet (d) a few hours of waiting
33. 33.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
34. 34.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
35. 35.💧 Which of these does not let water climb? (a) a flower stem (b) a cotton thread (c) a steel spoon (d) a piece of chalk
36. 36.💧 Which of these does not let water climb? (a) a piece of foil (b) a sugar cube (c) a cotton thread (d) a flower stem
37. 37.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
38. 38.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a white flower (c) a mirror (d) a few hours of waiting
39. 39.⚖️ 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 room it stands in (b) the length of the stem (c) time for colour to show
40. 40.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) colour climbs up it (c) nothing ever happens (d) it sinks at once

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