Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 347 · 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 of these is needed for the coloured flower experiment? (a) turmeric powder (b) a white flower (c) a magnet (d) a balloon
2. 2.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) anyone, without looking (d) a grown-up
3. 3.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a glass of water (c) a balloon (d) a battery cell
4. 4.⚖️ 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 length of the stem (c) the room it stands in
5. 5.⚖️ 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
6. 6.🛟 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
7. 7.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a few hours of waiting (c) a battery cell (d) a mirror
8. 8.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a glass of water (d) a mirror
9. 9.💧 Which of these does not let water climb? (a) a cotton thread (b) a sugar cube (c) a flower stem (d) a glass marble
10. 10.⚖️ 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
11. 11.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
12. 12.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the water turns green (c) the stem turns to ice (d) the petals turn bluish
13. 13.🌼 How does coloured water reach the petals? (a) through the air (b) through tiny stem tubes (c) it rains on them (d) it is sprayed on
14. 14.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
15. 15.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a magnet (c) food colour (d) a few hours of waiting
16. 16.True or false: a plastic ruler does not let water climb. (a) False (b) True
17. 17.💧 Which of these does not let water climb? (a) a strip of cloth (b) a paper towel (c) a sugar cube (d) a plastic ruler
18. 18.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
19. 19.🧺 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
20. 20.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
21. 21.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) a few hours of waiting (c) a glass of water (d) a white flower
22. 22.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the flower glows (c) the stem turns blue (d) no colour change
23. 23.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) colour climbs up it (c) nothing ever happens (d) it sinks at once
24. 24.True or false: a steel spoon does not let water climb. (a) False (b) True
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 amount of water (b) the length of the stem (c) time for colour to show
26. 26.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) a few hours of waiting (d) yeast
27. 27.⚖️ 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
28. 28.True or false: a glass of water is needed for the coloured flower experiment. (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 length of the stem”? (a) we change it (b) we measure it (c) we keep it the same
30. 30.💧 Which of these does not let water climb? (a) a strip of cloth (b) a flower stem (c) a steel spoon (d) a cotton thread
31. 31.🌼 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
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 kept the same. (a) True (b) False
33. 33.True or false: a plastic ruler lets water climb up it. (a) True (b) False
34. 34.💧 Which of these does not let water climb? (a) a piece of foil (b) a cotton thread (c) a sugar cube (d) a paper towel
35. 35.⚖️ 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 amount of water (c) the kind of flower (d) the room it stands in
36. 36.⚖️ 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 length of the stem (b) the room it stands in (c) time for colour to show (d) the kind of flower
37. 37.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
38. 38.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
39. 39.True or false: a paper towel lets water climb up it. (a) False (b) True
40. 40.⚖️ 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 change it (b) we keep it the same (c) we measure it

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