Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 984 · 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 not needed for the coloured flower experiment? (a) a few hours of waiting (b) food colour (c) a mirror (d) a glass of water
2. 2.True or false: a flower stem does not let water climb. (a) False (b) True
3. 3.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
4. 4.⚖️ 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 measure it (b) we change it (c) we keep it the same
5. 5.⚖️ 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) False (b) True
6. 6.True or false: a sugar cube does not let water climb. (a) True (b) False
7. 7.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it turns to plastic (c) colour climbs up it (d) it sinks at once
8. 8.💧 Which of these does not let water climb? (a) a strip of cloth (b) a paper towel (c) a steel spoon (d) a piece of chalk
9. 9.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
10. 10.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of foil (c) a piece of chalk (d) a steel spoon
11. 11.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) turmeric powder (b) a few hours of waiting (c) a white flower (d) a glass of water
12. 12.⚖️ 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 room it stands in (b) time for colour to show (c) the amount of colour (d) the amount of water
13. 13.💧 Which of these lets water climb up it? (a) a glass marble (b) a plastic ruler (c) a steel spoon (d) a sugar cube
14. 14.🧺 Which of these is not needed for the coloured flower experiment? (a) yeast (b) a white flower (c) a glass of water (d) a few hours of waiting
15. 15.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) capillary action (c) melting (d) evaporation
16. 16.True or false: a balloon is not needed for the coloured flower experiment. (a) True (b) False
17. 17.⚖️ 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 kept the same. (a) False (b) True
18. 18.🧺 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 battery cell (d) a white flower
19. 19.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) petals are magnetic (c) the stem is hot (d) petals lose water to air
20. 20.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
21. 21.⚖️ 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) the kind of flower (c) time for colour to show (d) the length of the stem
22. 22.⚖️ 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
23. 23.⚖️ 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
24. 24.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
25. 25.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) it rains on them (c) through the air (d) through tiny stem tubes
26. 26.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a piece of foil (d) a sugar cube
27. 27.True or false: a piece of chalk does not let water climb. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) a steel spoon (b) a rubber eraser (c) a glass marble (d) a paper towel
29. 29.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
30. 30.🧺 Which of these is not needed for the coloured flower experiment? (a) turmeric powder (b) a glass of water (c) a few hours of waiting (d) a white flower
31. 31.🔍 Which is the odd one out? (a) a cotton thread (b) a piece of chalk (c) a strip of cloth (d) a rubber eraser
32. 32.🧺 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 mirror (d) food colour
33. 33.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they all turn green (b) they fall off at once (c) they turn two colours (d) they stay white
34. 34.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) a white flower (c) a few hours of waiting (d) food colour
35. 35.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
36. 36.🧺 Which of these is not needed for the coloured flower experiment? (a) a balloon (b) a few hours of waiting (c) a glass of water (d) food colour
37. 37.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a plastic ruler (c) a paper towel (d) a glass marble
38. 38.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) anyone, without looking (d) a grown-up
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 water”? (a) we change it (b) we keep it the same (c) we measure it
40. 40.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True

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