Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 268 · 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.⚖️ 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 what we measure. (a) True (b) False
2. 2.💧 Which of these lets water climb up it? (a) a piece of chalk (b) a plastic ruler (c) a glass marble (d) a rubber eraser
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a white flower (c) a battery cell (d) a few hours of waiting
4. 4.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) yeast (c) a balloon (d) a white flower
5. 5.🔍 Which is the odd one out? (a) a steel spoon (b) a glass marble (c) a piece of chalk (d) a rubber eraser
6. 6.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a grown-up (d) a pet
7. 7.⚖️ 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) True (b) False
8. 8.True or false: a piece of chalk lets water climb up it. (a) True (b) False
9. 9.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the water turns green (c) the flower floats away (d) the stem turns to ice
10. 10.⚖️ 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 keep it the same (b) we measure it (c) we change it
11. 11.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is kept the same? (a) time for colour to show (b) the length of the stem (c) the amount of water
12. 12.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
13. 13.⚖️ 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) time for colour to show
14. 14.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is kept the same? (a) time for colour to show (b) the amount of colour (c) the length of the stem
15. 15.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
16. 16.🔍 Which is the odd one out? (a) a glass marble (b) a sugar cube (c) a plastic ruler (d) a steel spoon
17. 17.🔍 Which is the odd one out? (a) a plastic ruler (b) a strip of cloth (c) a paper towel (d) a sugar cube
18. 18.💧 Which of these lets water climb up it? (a) a glass marble (b) a plastic ruler (c) a piece of foil (d) a cotton thread
19. 19.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
20. 20.💧 Which of these does not let water climb? (a) a flower stem (b) a cotton thread (c) a paper towel (d) a glass marble
21. 21.🔍 Which is the odd one out? (a) a flower stem (b) a paper towel (c) a glass marble (d) a strip of cloth
22. 22.True or false: a sugar cube 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 room it stands in is the one thing we change. (a) True (b) False
24. 24.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
25. 25.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
26. 26.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the stem turns blue (c) no colour change (d) the flower glows
27. 27.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is what we measure. (a) True (b) False
28. 28.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it turns to plastic (c) it sinks at once (d) colour climbs up it
29. 29.⚖️ 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 water (b) the kind of flower (c) time for colour to show (d) the room it stands in
30. 30.🔍 Which is the odd one out? (a) a flower stem (b) a steel spoon (c) a strip of cloth (d) a paper towel
31. 31.⚖️ 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 keep it the same (c) we change it
32. 32.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) a few hours of waiting (c) a white flower (d) a glass of water
33. 33.True or false: a steel spoon does not let water climb. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) a sugar cube (b) a cotton thread (c) a piece of chalk (d) a piece of foil
35. 35.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is what we measure. (a) True (b) False
36. 36.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) petals lose water to air (c) the stem is hot (d) petals are magnetic
37. 37.🛟 What should you do after handling food colour? (a) wash your hands (b) lick your fingers (c) wipe them on walls (d) rub your eyes
38. 38.🧺 Which of these is not needed for the coloured flower experiment? (a) a mirror (b) a white flower (c) food colour (d) a glass of water
39. 39.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
40. 40.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) evaporation (c) capillary action (d) magnetism

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