Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 806 · 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) needed (b) not needed
2. 2.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) yeast (c) a white flower (d) a glass of water
3. 3.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
4. 4.💧 Which of these lets water climb up it? (a) a steel spoon (b) a cotton thread (c) a plastic ruler (d) a rubber eraser
5. 5.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a mirror (c) a glass of water (d) a white flower
6. 6.🔮 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 all turn green (c) they fall off at once (d) they stay white
7. 7.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a few hours of waiting (c) a balloon (d) food colour
8. 8.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
9. 9.True or false: a white flower is not needed for the coloured flower experiment. (a) False (b) True
10. 10.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a steel spoon (d) a flower stem
11. 11.🔍 Which is the odd one out? (a) a plastic ruler (b) a sugar cube (c) a paper towel (d) a cotton thread
12. 12.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the stem turns to ice (c) the flower floats away (d) the petals turn bluish
13. 13.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a few hours of waiting (c) food colour (d) a battery cell
14. 14.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a battery cell (c) a white flower (d) a few hours of waiting
15. 15.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
16. 16.True or false: a glass marble does not let water climb. (a) False (b) True
17. 17.⚖️ 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 kept the same. (a) False (b) True
18. 18.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
19. 19.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
20. 20.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) melting (c) magnetism (d) capillary action
21. 21.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
22. 22.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
23. 23.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a piece of foil (c) a sugar cube (d) a glass marble
24. 24.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) it turns to plastic (c) nothing ever happens (d) colour climbs up it
25. 25.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
26. 26.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a balloon (c) a glass of water (d) a white flower
27. 27.🔍 Which is the odd one out? (a) a rubber eraser (b) a glass marble (c) a piece of foil (d) a cotton thread
28. 28.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
29. 29.True or false: a sugar cube lets water climb up it. (a) True (b) False
30. 30.💧 Which of these lets water climb up it? (a) a steel spoon (b) a piece of foil (c) a strip of cloth (d) a rubber eraser
31. 31.💧 Which of these lets water climb up it? (a) a steel spoon (b) a piece of foil (c) a plastic ruler (d) a paper towel
32. 32.⚖️ 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
33. 33.🛟 Who should trim the flower stem? (a) a pet (b) a toddler (c) a grown-up (d) anyone, without looking
34. 34.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
35. 35.💧 Which of these does not let water climb? (a) a cotton thread (b) a steel spoon (c) a flower stem (d) a sugar cube
36. 36.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
37. 37.True or false: food colour is not needed for the coloured flower experiment. (a) False (b) True
38. 38.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) a white flower (c) a glass of water (d) a few hours of waiting
39. 39.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
40. 40.True or false: a flower stem lets water climb up it. (a) True (b) False

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