Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 987 · 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.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
2. 2.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through tiny stem tubes (c) it rains on them (d) through the air
3. 3.💧 Which of these does not let water climb? (a) a flower stem (b) a sugar cube (c) a piece of chalk (d) a glass marble
4. 4.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) True (b) False
5. 5.⚖️ 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 amount of colour (b) the room it stands in (c) the kind of flower (d) time for colour to show
6. 6.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
7. 7.⚖️ 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 change it (b) we measure it (c) we keep it the same
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 all turn green (c) they turn two colours (d) they fall off at once
9. 9.🧺 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) a magnet
10. 10.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a balloon (c) a few hours of waiting (d) food colour
11. 11.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) yeast (c) a glass of water (d) a few hours of waiting
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 room it stands in (b) the kind of flower (c) the amount of colour (d) the length of the stem
13. 13.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) a few hours of waiting (c) food colour (d) a glass of water
14. 14.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) evaporation (c) melting (d) capillary action
15. 15.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
16. 16.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a white flower (c) a battery cell (d) food colour
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 what we measure. (a) True (b) False
18. 18.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) colour climbs up it (c) it sinks at once (d) nothing ever happens
19. 19.⚖️ 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 keep it the same (c) we change it
20. 20.⚖️ 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
21. 21.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
22. 22.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) yeast (c) a glass of water (d) a few hours of waiting
23. 23.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a pet (c) a grown-up (d) a toddler
24. 24.True or false: a piece of chalk does not let water climb. (a) False (b) True
25. 25.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a steel spoon (d) a sugar cube
26. 26.⚖️ 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) False (b) True
27. 27.⚖️ 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
28. 28.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
29. 29.🧺 Which of these is needed for the coloured flower experiment? (a) a few hours of waiting (b) a balloon (c) turmeric powder (d) a mirror
30. 30.🔍 Which is the odd one out? (a) a glass marble (b) a strip of cloth (c) a steel spoon (d) a rubber eraser
31. 31.🔍 Which is the odd one out? (a) a rubber eraser (b) a glass marble (c) a piece of foil (d) a flower stem
32. 32.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
33. 33.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
34. 34.⚖️ 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
35. 35.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
36. 36.💧 Which of these lets water climb up it? (a) a piece of foil (b) a flower stem (c) a steel spoon (d) a plastic ruler
37. 37.⚖️ 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
38. 38.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
39. 39.⚖️ 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
40. 40.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb

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