Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 189 · 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.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
2. 2.True or false: a glass marble lets water climb up it. (a) False (b) True
3. 3.⚖️ 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 measure it (b) we change it (c) we keep it the same
4. 4.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
5. 5.True or false: a steel spoon does not let water climb. (a) False (b) True
6. 6.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) melting (c) capillary action (d) evaporation
7. 7.⚖️ 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
8. 8.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a battery cell (c) food colour (d) a glass of water
9. 9.True or false: a piece of chalk lets water climb up it. (a) True (b) False
10. 10.⚖️ 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 kind of flower (b) time for colour to show (c) the amount of water (d) the length of the stem
11. 11.True or false: a strip of cloth does not let water climb. (a) False (b) True
12. 12.⚖️ 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
13. 13.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
14. 14.💧 Which of these lets water climb up it? (a) a sugar cube (b) a glass marble (c) a steel spoon (d) a piece of foil
15. 15.💧 Which of these lets water climb up it? (a) a steel spoon (b) a piece of chalk (c) a plastic ruler (d) a rubber eraser
16. 16.🛟 What should you do after handling food colour? (a) wipe them on walls (b) wash your hands (c) rub your eyes (d) lick your fingers
17. 17.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is what we measure? (a) time for colour to show (b) the length of the stem (c) the room it stands in (d) the amount of colour
18. 18.True or false: a flower stem lets water climb up it. (a) False (b) True
19. 19.True or false: a paper towel does not let water climb. (a) False (b) True
20. 20.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
21. 21.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
22. 22.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) a magnet (c) a balloon (d) a battery cell
23. 23.💧 Which of these does not let water climb? (a) a cotton thread (b) a glass marble (c) a piece of chalk (d) a sugar cube
24. 24.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they fall off at once (b) they stay white (c) they all turn green (d) they turn two colours
25. 25.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
26. 26.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a few hours of waiting (c) food colour (d) turmeric powder
28. 28.True or false: a glass marble does not let water climb. (a) False (b) True
29. 29.⚖️ 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) False (b) True
30. 30.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) a magnet (c) a battery cell (d) yeast
31. 31.💧 Which of these does not let water climb? (a) a flower stem (b) a piece of chalk (c) a strip of cloth (d) a rubber eraser
32. 32.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) a grown-up (d) anyone, without looking
33. 33.⚖️ 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
34. 34.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) nothing ever happens (c) it turns to plastic (d) it sinks at once
35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) yeast (c) food colour (d) a white flower
36. 36.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
37. 37.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
38. 38.⚖️ 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 keep it the same (b) we measure it (c) we change it
39. 39.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a white flower (c) a battery cell (d) a few hours of waiting
40. 40.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed

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