Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 229 · 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 of these does not let water climb? (a) a piece of chalk (b) a rubber eraser (c) a strip of cloth (d) a cotton thread
2. 2.🔮 What would change if the flower stood in plain water? (a) the stem turns blue (b) the petals turn red (c) no colour change (d) the flower glows
3. 3.🔍 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
4. 4.⚖️ 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) True (b) False
5. 5.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
6. 6.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a few hours of waiting (c) a mirror (d) a balloon
7. 7.🔍 Which is the odd one out? (a) a piece of foil (b) a strip of cloth (c) a rubber eraser (d) a plastic ruler
8. 8.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
9. 9.⚖️ 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 kept the same. (a) True (b) False
10. 10.⚖️ 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 measure it (b) we keep it the same (c) we change it
11. 11.🛟 What should you do after handling food colour? (a) rub your eyes (b) wipe them on walls (c) lick your fingers (d) wash your hands
12. 12.🔍 Which is the odd one out? (a) a plastic ruler (b) a glass marble (c) a cotton thread (d) a steel spoon
13. 13.🔮 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
14. 14.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
15. 15.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) evaporation (c) capillary action (d) melting
16. 16.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
17. 17.⚖️ 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
18. 18.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
19. 19.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
20. 20.🛟 Who should trim the flower stem? (a) a grown-up (b) a pet (c) a toddler (d) anyone, without looking
21. 21.⚖️ 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 colour (b) the length of the stem (c) time for colour to show (d) the amount of water
22. 22.🔍 Which is the odd one out? (a) a rubber eraser (b) a plastic ruler (c) a glass marble (d) a flower stem
23. 23.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False
24. 24.🔍 Which is the odd one out? (a) a piece of chalk (b) a plastic ruler (c) a cotton thread (d) a strip of cloth
25. 25.⚖️ 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) False (b) True
26. 26.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
27. 27.⚖️ 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 amount of water (b) time for colour to show (c) the length of the stem
28. 28.⚖️ 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 the one thing we change. (a) False (b) True
29. 29.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
30. 30.True or false: a strip of cloth does not let water climb. (a) True (b) False
31. 31.True or false: a cotton thread lets water climb up it. (a) False (b) True
32. 32.💧 Which of these does not let water climb? (a) a piece of chalk (b) a flower stem (c) a sugar cube (d) a steel spoon
33. 33.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
34. 34.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
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 change it (b) we keep it the same (c) we measure it
36. 36.💧 Which of these does not let water climb? (a) a flower stem (b) a piece of foil (c) a piece of chalk (d) a strip of cloth
37. 37.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
38. 38.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
39. 39.True or false: a piece of chalk lets water climb up it. (a) False (b) True
40. 40.⚖️ 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

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