Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 716 · 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 plastic ruler (b) a glass marble (c) a steel spoon (d) a flower stem
2. 2.⚖️ 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 length of the stem (b) time for colour to show (c) the amount of water
3. 3.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
4. 4.🛟 Who should trim the flower stem? (a) a pet (b) a grown-up (c) anyone, without looking (d) a toddler
5. 5.⚖️ 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
6. 6.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
7. 7.💧 Which of these does not let water climb? (a) a strip of cloth (b) a piece of chalk (c) a paper towel (d) a steel spoon
8. 8.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a battery cell (c) a glass of water (d) a white flower
9. 9.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
10. 10.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a magnet (c) a battery cell (d) a few hours of waiting
11. 11.True or false: a white flower is needed for the coloured flower experiment. (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 the one thing we change? (a) the length of the stem (b) the kind of flower (c) the amount of colour (d) the amount of water
13. 13.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a few hours of waiting (c) a white flower (d) yeast
14. 14.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
15. 15.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a steel spoon (c) a rubber eraser (d) a flower stem
16. 16.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is kept the same. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) a glass marble (b) a piece of foil (c) a plastic ruler (d) a sugar cube
18. 18.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False
19. 19.🔮 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
20. 20.🔍 Which is the odd one out? (a) a cotton thread (b) a strip of cloth (c) a flower stem (d) a glass marble
21. 21.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) melting (c) capillary action (d) evaporation
22. 22.True or false: a piece of chalk does not let water climb. (a) True (b) False
23. 23.⚖️ 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
24. 24.⚖️ 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 kind of flower (b) time for colour to show (c) the room it stands in (d) the amount of water
25. 25.True or false: food colour is needed for the coloured flower experiment. (a) True (b) False
26. 26.⚖️ 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 measure it (c) we keep it the same
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.🔍 Which is the odd one out? (a) a paper towel (b) a steel spoon (c) a strip of cloth (d) a flower stem
29. 29.💧 Which of these lets water climb up it? (a) a piece of chalk (b) a steel spoon (c) a piece of foil (d) a plastic ruler
30. 30.⚖️ 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 keep it the same (b) we change it (c) we measure it
31. 31.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is kept the same. (a) True (b) False
32. 32.⚖️ 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) True (b) False
33. 33.🔍 Which is the odd one out? (a) a piece of chalk (b) a plastic ruler (c) a steel spoon (d) a glass marble
34. 34.💧 Which of these lets water climb up it? (a) a glass marble (b) a plastic ruler (c) a rubber eraser (d) a paper towel
35. 35.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) food colour (c) a balloon (d) a glass of water
36. 36.True or false: a cotton thread lets water climb up it. (a) False (b) True
37. 37.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) yeast (c) a balloon (d) a glass of water
38. 38.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the flower glows (c) the petals turn red (d) the stem turns blue
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 keep it the same (b) we measure it (c) we change it
40. 40.💧 Which of these does not let water climb? (a) a strip of cloth (b) a flower stem (c) a cotton thread (d) a piece of foil

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