Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 331 · 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 of these is needed for the coloured flower experiment? (a) yeast (b) turmeric powder (c) a balloon (d) a glass of water
2. 2.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) food colour (d) a magnet
3. 3.💧 Which of these lets water climb up it? (a) a glass marble (b) a piece of foil (c) a plastic ruler (d) a paper towel
4. 4.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
5. 5.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
6. 6.⚖️ 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
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 kind of flower (b) the length of the stem (c) the amount of colour (d) time for colour to show
8. 8.True or false: a paper towel lets water climb up it. (a) False (b) True
9. 9.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a glass of water (c) yeast (d) food colour
10. 10.💧 Which of these lets water climb up it? (a) a piece of foil (b) a strip of cloth (c) a steel spoon (d) a glass marble
11. 11.True or false: a piece of chalk lets water climb up it. (a) False (b) True
12. 12.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
13. 13.⚖️ 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
14. 14.True or false: a cotton thread lets water climb up it. (a) False (b) True
15. 15.💧 Which of these does not let water climb? (a) a flower stem (b) a piece of chalk (c) a rubber eraser (d) a paper towel
16. 16.⚖️ 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
17. 17.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) it rains on them (c) through the air (d) it is sprayed on
18. 18.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a magnet (c) a white flower (d) a glass of water
19. 19.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
20. 20.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a balloon (c) a magnet (d) a few hours of waiting
21. 21.⚖️ 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
22. 22.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) anyone, without looking (d) a grown-up
23. 23.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) a white flower (c) a few hours of waiting (d) a glass of water
24. 24.💧 Which of these lets water climb up it? (a) a glass marble (b) a sugar cube (c) a rubber eraser (d) a steel spoon
25. 25.🧺 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
26. 26.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a white flower (c) food colour (d) yeast
27. 27.True or false: a plastic ruler does not let water climb. (a) True (b) False
28. 28.🔮 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
29. 29.🔍 Which is the odd one out? (a) a piece of chalk (b) a plastic ruler (c) a rubber eraser (d) a piece of foil
30. 30.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
31. 31.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the water turns green (c) the petals turn bluish (d) the stem turns to ice
32. 32.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
33. 33.⚖️ 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
34. 34.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a balloon (c) food colour (d) a glass of water
35. 35.⚖️ 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
36. 36.🔍 Which is the odd one out? (a) a steel spoon (b) a plastic ruler (c) a flower stem (d) a rubber eraser
37. 37.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of colour”? (a) we measure it (b) we change it (c) we keep it the same
38. 38.⚖️ 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 kind of flower (b) time for colour to show (c) the amount of colour (d) the room it stands in
39. 39.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wipe them on walls (d) wash your hands
40. 40.💧 Which of these lets water climb up it? (a) a cotton thread (b) a steel spoon (c) a plastic ruler (d) a rubber eraser

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