Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 779 · 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 balloon 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 amount of water is the one thing we change. (a) False (b) True
3. 3.⚖️ 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 room it stands in (d) the amount of colour
4. 4.🧺 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 glass of water (d) a magnet
5. 5.🛟 Who should trim the flower stem? (a) a toddler (b) a grown-up (c) anyone, without looking (d) a pet
6. 6.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
7. 7.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it sinks at once (c) it turns to plastic (d) nothing ever happens
8. 8.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) food colour (c) a white flower (d) a few hours of waiting
9. 9.🧺 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
10. 10.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) turmeric powder (d) a few hours of waiting
11. 11.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) yeast (d) a glass of water
12. 12.True or false: a cotton thread does not let water climb. (a) True (b) False
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 what we measure. (a) True (b) False
14. 14.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a piece of foil (c) a glass marble (d) a piece of chalk
15. 15.🔍 Which is the odd one out? (a) a sugar cube (b) a piece of chalk (c) a paper towel (d) a rubber eraser
16. 16.True or false: a steel spoon does not let water climb. (a) False (b) True
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 turn two colours (c) they all turn green (d) they stay white
18. 18.⚖️ 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 kind of flower (c) time for colour to show (d) the amount of colour
19. 19.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
20. 20.🔍 Which is the odd one out? (a) a flower stem (b) a glass marble (c) a sugar cube (d) a paper towel
21. 21.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
22. 22.🧺 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) a white flower (d) a balloon
23. 23.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
24. 24.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
25. 25.⚖️ 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
26. 26.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a mirror (c) food colour (d) a few hours of waiting
27. 27.🔍 Which is the odd one out? (a) a piece of foil (b) a plastic ruler (c) a glass marble (d) a strip of cloth
28. 28.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wipe them on walls (d) wash your hands
29. 29.💧 Which of these does not let water climb? (a) a cotton thread (b) a plastic ruler (c) a sugar cube (d) a flower stem
30. 30.🔍 Which is the odd one out? (a) a strip of cloth (b) a sugar cube (c) a plastic ruler (d) a flower stem
31. 31.🌼 How does coloured water reach the petals? (a) it rains on them (b) through the air (c) through tiny stem tubes (d) it is sprayed on
32. 32.⚖️ 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
33. 33.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a balloon (c) a magnet (d) food colour
34. 34.True or false: a strip of cloth lets water climb up it. (a) False (b) True
35. 35.⚖️ 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) 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 amount of water”? (a) we keep it the same (b) we change it (c) we measure it
37. 37.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
38. 38.True or false: a strip of cloth does not let water climb. (a) False (b) True
39. 39.🔍 Which is the odd one out? (a) a cotton thread (b) a paper towel (c) a piece of foil (d) a piece of chalk
40. 40.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False

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