Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 770 · 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.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a balloon (c) a few hours of waiting (d) a white flower
2. 2.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wipe them on walls (d) wash your hands
3. 3.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
4. 4.⚖️ 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
5. 5.💧 Which of these does not let water climb? (a) a cotton thread (b) a flower stem (c) a sugar cube (d) a rubber eraser
6. 6.🔍 Which is the odd one out? (a) a cotton thread (b) a strip of cloth (c) a piece of foil (d) a sugar cube
7. 7.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
8. 8.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
9. 9.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
10. 10.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a few hours of waiting (c) yeast (d) a magnet
11. 11.🌼 How does coloured water reach the petals? (a) it rains on them (b) through tiny stem tubes (c) it is sprayed on (d) through the air
12. 12.💧 Which of these lets water climb up it? (a) a steel spoon (b) a glass marble (c) a plastic ruler (d) a cotton thread
13. 13.🧺 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) food colour (d) turmeric powder
14. 14.True or false: a plastic ruler does not let water climb. (a) True (b) False
15. 15.True or false: a plastic ruler lets water climb up it. (a) True (b) False
16. 16.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a balloon (c) a magnet (d) a white flower
17. 17.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
18. 18.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
19. 19.📘 What is it called when water climbs up thin tubes or paper by itself? (a) capillary action (b) magnetism (c) melting (d) evaporation
20. 20.True or false: turmeric powder is needed for the coloured flower experiment. (a) False (b) True
21. 21.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) colour climbs up it (c) it sinks at once (d) it turns to plastic
22. 22.🧺 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 few hours of waiting (d) a mirror
23. 23.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a glass of water (c) a few hours of waiting (d) a white flower
24. 24.🛟 Who should trim the flower stem? (a) a pet (b) a toddler (c) anyone, without looking (d) a grown-up
25. 25.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) a white flower (d) yeast
26. 26.⚖️ 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
27. 27.💧 Which of these does not let water climb? (a) a strip of cloth (b) a paper towel (c) a plastic ruler (d) a flower stem
28. 28.⚖️ 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 change it (b) we measure it (c) we keep it the same
29. 29.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
30. 30.🔮 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
31. 31.True or false: a sugar cube lets water climb up it. (a) True (b) False
32. 32.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
33. 33.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
34. 34.🔍 Which is the odd one out? (a) a paper towel (b) a piece of chalk (c) a strip of cloth (d) a plastic ruler
35. 35.True or false: a piece of chalk does not let water climb. (a) False (b) True
36. 36.⚖️ 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 kind of flower (b) the length of the stem (c) the amount of colour (d) the room it stands in
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 measure it (b) we change it (c) we keep it the same
38. 38.🔍 Which is the odd one out? (a) a strip of cloth (b) a cotton thread (c) a piece of chalk (d) a glass marble
39. 39.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
40. 40.True or false: food colour is needed for the coloured flower experiment. (a) False (b) True

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