Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 424 · 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.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a balloon (d) a glass of water
3. 3.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) no colour change (c) the stem turns blue (d) the petals turn red
4. 4.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a few hours of waiting (d) turmeric powder
5. 5.True or false: a sugar cube lets water climb up it. (a) True (b) False
6. 6.True or false: a sugar cube does not let water climb. (a) True (b) False
7. 7.💧 Which of these does not let water climb? (a) a sugar cube (b) a flower stem (c) a paper towel (d) a plastic ruler
8. 8.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
9. 9.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False
10. 10.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a pet (c) a grown-up (d) a toddler
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 what we measure. (a) False (b) True
12. 12.💧 Which of these lets water climb up it? (a) a piece of foil (b) a piece of chalk (c) a plastic ruler (d) a rubber eraser
13. 13.⚖️ 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
14. 14.⚖️ 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) time for colour to show (c) the kind of flower (d) the room it stands in
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 kept the same. (a) True (b) False
16. 16.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a white flower (d) a mirror
17. 17.True or false: a magnet is not needed for the coloured flower experiment. (a) False (b) True
18. 18.⚖️ 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
19. 19.True or false: food colour is not needed for the coloured flower experiment. (a) False (b) True
20. 20.True or false: a paper towel lets water climb up it. (a) False (b) True
21. 21.True or false: a white flower is needed for the coloured flower experiment. (a) True (b) False
22. 22.⚖️ 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 room it stands in (b) the amount of colour (c) the kind of flower (d) the length of the stem
23. 23.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of foil (c) a cotton thread (d) a steel spoon
24. 24.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) yeast (c) a magnet (d) a glass of water
25. 25.⚖️ 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
26. 26.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
27. 27.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it sinks at once (c) colour climbs up it (d) it turns to plastic
28. 28.True or false: a glass of water is needed for the coloured flower experiment. (a) True (b) False
29. 29.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
30. 30.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a battery cell (d) a glass of water
31. 31.True or false: a piece of foil lets water climb up it. (a) True (b) False
32. 32.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a few hours of waiting (c) a magnet (d) a battery cell
33. 33.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
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 balloon is not needed for the coloured flower experiment. (a) False (b) True
36. 36.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the room it stands in”? (a) we change it (b) we measure it (c) we keep it the same
37. 37.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
38. 38.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a paper towel (d) a steel spoon
39. 39.🔮 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 turn two colours (c) they fall off at once (d) they all turn green
40. 40.💧 Which of these does not let water climb? (a) a piece of chalk (b) a cotton thread (c) a steel spoon (d) a strip of cloth

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