Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 929 · 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.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
2. 2.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a magnet (d) a glass of water
3. 3.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a piece of foil (c) a steel spoon (d) a flower stem
4. 4.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
5. 5.⚖️ 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 keep it the same (c) we measure it
6. 6.🔍 Which is the odd one out? (a) a cotton thread (b) a plastic ruler (c) a sugar cube (d) a strip of cloth
7. 7.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
8. 8.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) food colour (c) a white flower (d) a battery cell
9. 9.⚖️ 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 amount of water
10. 10.⚖️ 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
11. 11.True or false: a mirror is not needed for the coloured flower experiment. (a) False (b) True
12. 12.💧 Which of these does not let water climb? (a) a sugar cube (b) a flower stem (c) a piece of foil (d) a paper towel
13. 13.🔮 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 turn two colours (c) they fall off at once (d) they all turn green
14. 14.💧 Which of these lets water climb up it? (a) a sugar cube (b) a piece of foil (c) a steel spoon (d) a glass marble
15. 15.⚖️ 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
16. 16.🔍 Which is the odd one out? (a) a glass marble (b) a flower stem (c) a piece of chalk (d) a cotton thread
17. 17.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) magnetism (c) evaporation (d) capillary action
18. 18.💧 Which of these lets water climb up it? (a) a piece of foil (b) a glass marble (c) a rubber eraser (d) a piece of chalk
19. 19.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) it turns to plastic (c) colour climbs up it (d) nothing ever happens
20. 20.🔍 Which is the odd one out? (a) a flower stem (b) a paper towel (c) a sugar cube (d) a piece of foil
21. 21.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a few hours of waiting (c) a glass of water (d) yeast
22. 22.⚖️ 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 colour
23. 23.True or false: a plastic ruler does not let water climb. (a) False (b) True
24. 24.True or false: yeast is not needed for the coloured flower experiment. (a) False (b) True
25. 25.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a few hours of waiting (c) a mirror (d) a balloon
26. 26.🛟 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
27. 27.💧 Which of these does not let water climb? (a) a flower stem (b) a steel spoon (c) a paper towel (d) a sugar cube
28. 28.⚖️ 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 room it stands in (b) the length of the stem (c) time for colour to show
29. 29.⚖️ 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 amount of water (b) time for colour to show (c) the kind of flower (d) the length of the stem
30. 30.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the flower floats away (c) the water turns green (d) the petals turn bluish
31. 31.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
32. 32.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a steel spoon (c) a glass marble (d) a strip of cloth
33. 33.🌼 How does coloured water reach the petals? (a) through the air (b) it is sprayed on (c) through tiny stem tubes (d) it rains on them
34. 34.🔍 Which is the odd one out? (a) a rubber eraser (b) a cotton thread (c) a sugar cube (d) a paper towel
35. 35.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
36. 36.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is the one thing we change. (a) False (b) True
37. 37.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a balloon (c) food colour (d) a white flower
38. 38.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a battery cell (c) a white flower (d) food colour
39. 39.True or false: a paper towel lets water climb up it. (a) True (b) False
40. 40.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it

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