Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 558 · 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.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
2. 2.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) a white flower (c) a few hours of waiting (d) a glass of water
3. 3.🧺 Which of these is not needed for the coloured flower experiment? (a) a mirror (b) a few hours of waiting (c) a white flower (d) a glass of water
4. 4.🔍 Which is the odd one out? (a) a rubber eraser (b) a plastic ruler (c) a sugar cube (d) a steel spoon
5. 5.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a toddler (c) a grown-up (d) a pet
6. 6.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a white flower (c) yeast (d) a magnet
7. 7.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
8. 8.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the stem turns to ice (c) the water turns green (d) the petals turn bluish
9. 9.🛟 What should you do after handling food colour? (a) wipe them on walls (b) rub your eyes (c) wash your hands (d) lick your fingers
10. 10.💧 Which of these lets water climb up it? (a) a piece of foil (b) a plastic ruler (c) a flower stem (d) a rubber eraser
11. 11.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) petals are magnetic (c) petals lose water to air (d) the stem is hot
12. 12.⚖️ 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
13. 13.⚖️ 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 change it (c) we keep it the same
14. 14.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
15. 15.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
16. 16.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
17. 17.⚖️ 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 the one thing we change. (a) False (b) True
18. 18.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) nothing ever happens (c) it sinks at once (d) colour climbs up it
19. 19.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a glass of water (c) a white flower (d) food colour
20. 20.🧺 Which of these is not needed for the coloured flower experiment? (a) a balloon (b) a glass of water (c) food colour (d) a few hours of waiting
21. 21.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) yeast (c) a balloon (d) a magnet
22. 22.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
23. 23.⚖️ 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 kind of flower
24. 24.🧺 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
25. 25.True or false: a magnet is needed for the coloured flower experiment. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) a paper towel (b) a piece of foil (c) a plastic ruler (d) a rubber eraser
27. 27.⚖️ 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
28. 28.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
29. 29.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) turmeric powder (c) a white flower (d) a glass of water
30. 30.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the stem turns blue (c) no colour change (d) the flower glows
31. 31.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) a mirror (d) a white flower
32. 32.⚖️ 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
33. 33.🔍 Which is the odd one out? (a) a strip of cloth (b) a flower stem (c) a piece of chalk (d) a glass marble
34. 34.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through the air (c) it rains on them (d) through tiny stem tubes
35. 35.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
36. 36.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
37. 37.⚖️ 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
38. 38.⚖️ 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
39. 39.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of colour”? (a) we measure it (b) we keep it the same (c) we change it
40. 40.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed

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