Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 115 · 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.⚖️ 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) time for colour to show (c) the amount of colour (d) the length of the stem
2. 2.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
3. 3.🧺 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
4. 4.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) a mirror (d) a glass of water
5. 5.💧 Which of these lets water climb up it? (a) a piece of foil (b) a glass marble (c) a steel spoon (d) a sugar cube
6. 6.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a glass of water (c) a mirror (d) a battery cell
7. 7.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) food colour (c) a white flower (d) a glass of water
8. 8.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a magnet (c) food colour (d) turmeric powder
9. 9.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the water turns green (c) the petals turn bluish (d) the flower floats away
10. 10.🔍 Which is the odd one out? (a) a glass marble (b) a plastic ruler (c) a flower stem (d) a piece of foil
11. 11.🛟 What should you do after handling food colour? (a) rub your eyes (b) wipe them on walls (c) wash your hands (d) lick your fingers
12. 12.True or false: a white flower 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? True or false: the amount of colour is kept the same. (a) False (b) True
14. 14.True or false: a rubber eraser does not let water climb. (a) True (b) False
15. 15.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is the one thing we change. (a) True (b) False
16. 16.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it turns to plastic (c) nothing ever happens (d) it sinks at once
17. 17.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) turmeric powder (c) a mirror (d) a few hours of waiting
18. 18.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
19. 19.🌼 How does coloured water reach the petals? (a) through the air (b) through tiny stem tubes (c) it is sprayed on (d) it rains on them
20. 20.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
21. 21.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the petals turn red (c) no colour change (d) the stem turns blue
22. 22.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
23. 23.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
24. 24.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
25. 25.⚖️ 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 kind of flower
26. 26.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) anyone, without looking (d) a grown-up
27. 27.🔍 Which is the odd one out? (a) a paper towel (b) a sugar cube (c) a cotton thread (d) a plastic ruler
28. 28.⚖️ 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) False (b) True
29. 29.⚖️ 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 measure it (b) we keep it the same (c) we change it
30. 30.⚖️ 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
31. 31.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
32. 32.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of foil (c) a rubber eraser (d) a paper towel
34. 34.💧 Which of these does not let water climb? (a) a piece of chalk (b) a flower stem (c) a sugar cube (d) a steel spoon
35. 35.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a balloon (c) a white flower (d) a battery cell
36. 36.⚖️ 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 change it (b) we keep it the same (c) we measure it
37. 37.⚖️ 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
38. 38.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
39. 39.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
40. 40.💧 Which of these lets water climb up it? (a) a glass marble (b) a piece of chalk (c) a plastic ruler (d) a steel spoon

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