Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 545 · 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 is the odd one out? (a) a piece of chalk (b) a glass marble (c) a paper towel (d) a cotton thread
2. 2.💧 Which of these does not let water climb? (a) a flower stem (b) a piece of foil (c) a paper towel (d) a sugar cube
3. 3.True or false: a glass marble does not let water climb. (a) False (b) True
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 amount of water (b) the length of the stem (c) time for colour to show (d) the kind of flower
5. 5.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they all turn green (b) they fall off at once (c) they turn two colours (d) they stay white
6. 6.⚖️ 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) False (b) True
7. 7.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
8. 8.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) colour climbs up it (c) nothing ever happens (d) it sinks at once
9. 9.⚖️ 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
10. 10.⚖️ 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 kept the same. (a) False (b) True
11. 11.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
12. 12.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
13. 13.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a glass marble (c) a piece of foil (d) a sugar cube
14. 14.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True
15. 15.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a flower stem (d) a piece of foil
16. 16.⚖️ 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) True (b) False
17. 17.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) a white flower (d) a balloon
18. 18.🛟 Who should trim the flower stem? (a) a grown-up (b) a pet (c) a toddler (d) anyone, without looking
19. 19.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) capillary action (c) magnetism (d) evaporation
20. 20.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) a balloon (c) yeast (d) turmeric powder
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 room it stands in (b) time for colour to show (c) the kind of flower (d) the length of the stem
22. 22.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a magnet (c) a few hours of waiting (d) a white flower
23. 23.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
24. 24.🌼 How does coloured water reach the petals? (a) it rains on them (b) through the air (c) it is sprayed on (d) through tiny stem tubes
25. 25.🔍 Which is the odd one out? (a) a paper towel (b) a strip of cloth (c) a steel spoon (d) a cotton thread
26. 26.⚖️ 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 change it (b) we measure it (c) we keep it the same
27. 27.🔍 Which is the odd one out? (a) a steel spoon (b) a rubber eraser (c) a cotton thread (d) a plastic ruler
28. 28.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
29. 29.True or false: a cotton thread does not let water climb. (a) True (b) False
30. 30.⚖️ 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 change it (b) we measure it (c) we keep it the same
31. 31.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
32. 32.🛟 What should you do after handling food colour? (a) lick your fingers (b) wipe them on walls (c) wash your hands (d) rub your eyes
33. 33.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
34. 34.⚖️ 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) the kind of flower (c) time for colour to show
35. 35.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a white flower (c) a glass of water (d) a magnet
36. 36.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a few hours of waiting (d) turmeric powder
37. 37.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) yeast (c) food colour (d) a glass of water
38. 38.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
39. 39.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) yeast (c) a few hours of waiting (d) food colour
40. 40.🔍 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 stem turns to ice (d) the flower floats away

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