Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 792 · 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.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
2. 2.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) magnetism (c) capillary action (d) evaporation
3. 3.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a battery cell (c) a magnet (d) a white flower
4. 4.⚖️ 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
5. 5.🧺 Which of these is not needed for the coloured flower experiment? (a) a battery cell (b) a glass of water (c) a white flower (d) food colour
6. 6.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
7. 7.True or false: a mirror is needed for the coloured flower experiment. (a) False (b) True
8. 8.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they fall off at once (c) they turn two colours (d) they all turn green
9. 9.True or false: a sugar cube lets water climb up it. (a) True (b) False
10. 10.🔍 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 stem turns to ice (d) the water turns green
11. 11.🔍 Which is the odd one out? (a) a steel spoon (b) a flower stem (c) a glass marble (d) a rubber eraser
12. 12.🔍 Which is the odd one out? (a) a paper towel (b) a rubber eraser (c) a cotton thread (d) a flower stem
13. 13.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
14. 14.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
15. 15.💧 Which of these does not let water climb? (a) a flower stem (b) a strip of cloth (c) a rubber eraser (d) a cotton thread
16. 16.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) food colour (c) a glass of water (d) a white flower
17. 17.⚖️ 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) the kind of flower (d) time for colour to show
18. 18.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a piece of foil (c) a paper towel (d) a glass marble
19. 19.🌼 Why do the petals keep pulling water up the stem? (a) petals lose water to air (b) the stem is hot (c) petals are magnetic (d) petals like colour
20. 20.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
21. 21.🧺 Which of these is not needed for the coloured flower experiment? (a) yeast (b) a glass of water (c) a white flower (d) food colour
22. 22.🔍 Which is the odd one out? (a) a piece of foil (b) a paper towel (c) a piece of chalk (d) a sugar cube
23. 23.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a magnet (c) a mirror (d) food colour
24. 24.⚖️ 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
25. 25.🌼 How does coloured water reach the petals? (a) through the air (b) it rains on them (c) it is sprayed on (d) through tiny stem tubes
26. 26.⚖️ 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 keep it the same (b) we measure it (c) we change it
27. 27.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
28. 28.True or false: a glass marble does not let water climb. (a) True (b) False
29. 29.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the petals turn red (c) the stem turns blue (d) the flower glows
30. 30.🧺 Which of these is needed for the coloured flower experiment? (a) a few hours of waiting (b) a magnet (c) a mirror (d) a balloon
31. 31.🔮 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
32. 32.⚖️ 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 keep it the same (b) we change it (c) we measure it
33. 33.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False
34. 34.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) True (b) False
35. 35.⚖️ 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 change it (c) we keep it the same
36. 36.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a glass of water (c) yeast (d) a white flower
37. 37.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a piece of foil (d) a cotton thread
39. 39.⚖️ 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
40. 40.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a balloon (c) a few hours of waiting (d) food colour

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