Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 276 · 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.⚖️ 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
2. 2.🛟 What should you do after handling food colour? (a) rub your eyes (b) wipe them on walls (c) lick your fingers (d) wash your hands
3. 3.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is what we measure. (a) False (b) True
4. 4.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
5. 5.🔍 Which is the odd one out? (a) a strip of cloth (b) a sugar cube (c) a paper towel (d) a piece of foil
6. 6.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
7. 7.True or false: a battery cell is not needed for the coloured flower experiment. (a) False (b) True
8. 8.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a mirror (c) a glass of water (d) a white flower
9. 9.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) through the air (c) it rains on them (d) it is sprayed on
10. 10.🔍 Which is the odd one out? (a) a piece of chalk (b) a steel spoon (c) a piece of foil (d) a glass marble
11. 11.🔮 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
12. 12.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a toddler (d) a pet
13. 13.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
14. 14.💧 Which of these does not let water climb? (a) a flower stem (b) a cotton thread (c) a paper towel (d) a glass marble
15. 15.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
16. 16.🧺 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) turmeric powder (d) a glass of water
17. 17.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
18. 18.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a glass of water (c) food colour (d) a few hours of waiting
19. 19.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) it sinks at once (c) nothing ever happens (d) colour climbs up it
20. 20.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the flower floats away (c) the petals turn bluish (d) the water turns green
21. 21.🔍 Which is the odd one out? (a) a sugar cube (b) a strip of cloth (c) a glass marble (d) a cotton thread
22. 22.⚖️ 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
23. 23.🔍 Which is the odd one out? (a) a steel spoon (b) a strip of cloth (c) a cotton thread (d) a paper towel
24. 24.💧 Which of these lets water climb up it? (a) a glass marble (b) a strip of cloth (c) a plastic ruler (d) a steel spoon
25. 25.🔍 Which is the odd one out? (a) a flower stem (b) a sugar cube (c) a plastic ruler (d) a paper towel
26. 26.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a magnet (c) a glass of water (d) food colour
27. 27.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
28. 28.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a balloon (d) a glass of water
29. 29.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a glass of water (c) turmeric powder (d) a mirror
30. 30.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a steel spoon (c) a cotton thread (d) a plastic ruler
31. 31.🧺 Which of these is not needed for the coloured flower experiment? (a) yeast (b) a white flower (c) food colour (d) a few hours of waiting
32. 32.⚖️ 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
33. 33.True or false: a plastic ruler lets water climb up it. (a) True (b) False
34. 34.💧 Which of these lets water climb up it? (a) a glass marble (b) a sugar cube (c) a piece of foil (d) a steel spoon
35. 35.🔍 Which is the odd one out? (a) a glass marble (b) a paper towel (c) a plastic ruler (d) a steel spoon
36. 36.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
37. 37.⚖️ 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
38. 38.True or false: yeast is not needed for the coloured flower experiment. (a) False (b) True
39. 39.⚖️ 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 amount of water (b) the length of the stem (c) time for colour to show
40. 40.⚖️ 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 amount of colour (b) time for colour to show (c) the length of the stem (d) the room it stands in

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