Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 628 · 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: yeast is needed for the coloured flower experiment. (a) False (b) True
2. 2.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is kept the same. (a) True (b) False
3. 3.True or false: a cotton thread does not let water climb. (a) False (b) True
4. 4.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
5. 5.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a battery cell (c) a few hours of waiting (d) a balloon
6. 6.💧 Which of these does not let water climb? (a) a cotton thread (b) a piece of chalk (c) a piece of foil (d) a sugar cube
7. 7.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
8. 8.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) a balloon (c) a magnet (d) a mirror
9. 9.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
10. 10.🧺 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 glass of water
11. 11.🛟 What should you do after handling food colour? (a) wipe them on walls (b) rub your eyes (c) lick your fingers (d) wash your hands
12. 12.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
13. 13.⚖️ 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 amount of water (d) the room it stands in
14. 14.⚖️ 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 measure it (b) we change it (c) we keep it the same
15. 15.⚖️ 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 kind of flower (c) the length of the stem
16. 16.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a white flower (c) a glass of water (d) a mirror
17. 17.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they fall off at once (b) they stay white (c) they turn two colours (d) they all turn green
18. 18.True or false: a piece of chalk does not let water climb. (a) False (b) True
19. 19.⚖️ 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
20. 20.True or false: a plastic ruler does not let water climb. (a) True (b) False
21. 21.⚖️ 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 amount of colour (c) time for colour to show
22. 22.🔮 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
23. 23.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is what we measure. (a) True (b) False
24. 24.💧 Which of these does not let water climb? (a) a rubber eraser (b) a sugar cube (c) a flower stem (d) a piece of chalk
25. 25.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a balloon (c) a white flower (d) food colour
26. 26.⚖️ 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
27. 27.🛟 Who should trim the flower stem? (a) a pet (b) a toddler (c) a grown-up (d) anyone, without looking
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 room it stands in (b) the amount of colour (c) the length of the stem (d) the kind of flower
29. 29.🔍 Which is the odd one out? (a) a strip of cloth (b) a flower stem (c) a paper towel (d) a plastic ruler
30. 30.🔍 Which is the odd one out? (a) a piece of foil (b) a piece of chalk (c) a sugar cube (d) a strip of cloth
31. 31.🔍 Which is the odd one out? (a) a paper towel (b) a piece of foil (c) a glass marble (d) a steel spoon
32. 32.True or false: yeast is not needed for the coloured flower experiment. (a) False (b) True
33. 33.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
34. 34.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) turmeric powder (d) a glass of water
35. 35.True or false: a paper towel lets water climb up it. (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 “time for colour to show”? (a) we measure it (b) we keep it the same (c) we change it
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.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the flower floats away (c) the stem turns to ice (d) the water turns green
39. 39.⚖️ 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
40. 40.🔍 Which is the odd one out? (a) a steel spoon (b) a paper towel (c) a sugar cube (d) a strip of cloth

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