Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 760 · 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.True or false: a strip of cloth lets water climb up it. (a) False (b) True
2. 2.🧺 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) turmeric powder
3. 3.⚖️ 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 water (c) the length of the stem
4. 4.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
5. 5.🌼 How does coloured water reach the petals? (a) it rains on them (b) it is sprayed on (c) through tiny stem tubes (d) through the air
6. 6.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the stem turns to ice (c) the flower floats away (d) the water turns green
7. 7.⚖️ 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 water (d) the amount of colour
8. 8.💧 Which of these lets water climb up it? (a) a cotton thread (b) a rubber eraser (c) a piece of foil (d) a steel spoon
9. 9.⚖️ 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
10. 10.⚖️ 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) time for colour to show (c) the length of the stem (d) the kind of flower
11. 11.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wash your hands (d) wipe them on walls
12. 12.⚖️ 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
13. 13.💧 Which of these does not let water climb? (a) a flower stem (b) a rubber eraser (c) a cotton thread (d) a paper towel
14. 14.True or false: a steel spoon lets water climb up it. (a) True (b) False
15. 15.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) colour climbs up it (c) it turns to plastic (d) it sinks at once
16. 16.⚖️ 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 room it stands in
17. 17.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) True (b) False
18. 18.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
19. 19.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
20. 20.True or false: a cotton thread does not let water climb. (a) False (b) True
21. 21.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) evaporation (c) magnetism (d) capillary action
22. 22.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
23. 23.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
24. 24.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
25. 25.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a magnet (c) food colour (d) a white flower
26. 26.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a white flower (c) yeast (d) a few hours of waiting
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 the one thing we change. (a) True (b) False
28. 28.True or false: a flower stem does not let water climb. (a) True (b) False
29. 29.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) yeast (c) a mirror (d) a few hours of waiting
30. 30.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
31. 31.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) food colour (c) a magnet (d) yeast
32. 32.🧺 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 balloon (d) a white flower
33. 33.🧺 Which of these is not needed for the coloured flower experiment? (a) a battery cell (b) a white flower (c) food colour (d) a glass of water
34. 34.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they turn two colours (b) they fall off at once (c) they stay white (d) they all turn green
35. 35.⚖️ 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 keep it the same (b) we change it (c) we measure it
36. 36.True or false: a paper towel does not let water climb. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) a strip of cloth (b) a plastic ruler (c) a glass marble (d) a steel spoon
38. 38.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) food colour (c) a glass of water (d) a white flower
39. 39.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
40. 40.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed

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