Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 223 · 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.🔍 Which is the odd one out? (a) a paper towel (b) a strip of cloth (c) a piece of foil (d) a flower stem
2. 2.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
3. 3.🛟 Who should trim the flower stem? (a) a toddler (b) a grown-up (c) anyone, without looking (d) a pet
4. 4.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
5. 5.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
6. 6.⚖️ 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 what we measure. (a) True (b) False
7. 7.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a few hours of waiting (c) turmeric powder (d) a mirror
8. 8.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a balloon (c) food colour (d) a mirror
9. 9.🔍 Which is the odd one out? (a) a rubber eraser (b) a piece of foil (c) a piece of chalk (d) a glass marble
10. 10.🛟 What should you do after handling food colour? (a) rub your eyes (b) wash your hands (c) wipe them on walls (d) lick your fingers
11. 11.True or false: a plastic ruler lets water climb up it. (a) False (b) True
12. 12.⚖️ 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 kind of flower (b) time for colour to show (c) the length of the stem
13. 13.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
14. 14.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
15. 15.🔮 What would change if the flower stood in plain water? (a) the stem turns blue (b) the petals turn red (c) the flower glows (d) no colour change
16. 16.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they turn two colours (b) they fall off at once (c) they stay white (d) they all turn green
17. 17.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) colour climbs up it (c) it turns to plastic (d) it sinks at once
18. 18.⚖️ 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 measure it (b) we change it (c) we keep it the same
19. 19.🔍 Which is the odd one out? (a) a strip of cloth (b) a plastic ruler (c) a piece of chalk (d) a paper towel
20. 20.True or false: a flower stem lets water climb up it. (a) False (b) True
21. 21.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a mirror (c) food colour (d) a glass of water
22. 22.🧺 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 balloon (d) a glass of water
23. 23.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
24. 24.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
25. 25.💧 Which of these lets water climb up it? (a) a steel spoon (b) a plastic ruler (c) a flower stem (d) a glass marble
26. 26.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True
27. 27.⚖️ 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
28. 28.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) a white flower (d) a magnet
29. 29.💧 Which of these does not let water climb? (a) a steel spoon (b) a paper towel (c) a flower stem (d) a cotton thread
30. 30.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a piece of foil (d) a cotton thread
31. 31.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
32. 32.True or false: a plastic ruler does not let water climb. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) a plastic ruler (b) a cotton thread (c) a glass marble (d) a rubber eraser
34. 34.⚖️ 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 amount of water (b) the amount of colour (c) time for colour to show (d) the length of the stem
35. 35.True or false: a cotton thread lets water climb up it. (a) False (b) True
36. 36.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a magnet (c) a battery cell (d) a glass of water
37. 37.🔍 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 water turns green (d) the stem turns to ice
38. 38.⚖️ 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) False (b) True
39. 39.💧 Which of these does not let water climb? (a) a piece of foil (b) a sugar cube (c) a flower stem (d) a cotton thread
40. 40.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) it rains on them (c) through tiny stem tubes (d) through the air

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