Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 324 · 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 not needed for the coloured flower experiment? (a) a few hours of waiting (b) a magnet (c) food colour (d) a glass of water
2. 2.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) food colour (c) a battery cell (d) yeast
3. 3.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
4. 4.⚖️ 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
5. 5.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
6. 6.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
7. 7.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a balloon (c) a glass of water (d) food colour
8. 8.⚖️ 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) True (b) False
9. 9.⚖️ 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 room it stands in (b) the kind of flower (c) the amount of water (d) time for colour to show
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 length of the stem (d) the amount of colour
11. 11.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a white flower (c) food colour (d) a mirror
12. 12.True or false: turmeric powder is needed for the coloured flower experiment. (a) False (b) True
13. 13.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
14. 14.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of foil (c) a paper towel (d) a glass marble
15. 15.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is kept the same. (a) False (b) True
16. 16.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) nothing ever happens (c) it sinks at once (d) colour climbs up it
17. 17.⚖️ 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 keep it the same (b) we change it (c) we measure it
18. 18.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
19. 19.⚖️ 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
20. 20.🔍 Which is the odd one out? (a) a strip of cloth (b) a flower stem (c) a sugar cube (d) a piece of foil
21. 21.🔮 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 stay white (d) they turn two colours
22. 22.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
23. 23.🔍 Which is the odd one out? (a) a piece of foil (b) a steel spoon (c) a strip of cloth (d) a plastic ruler
24. 24.True or false: a plastic ruler lets water climb up it. (a) True (b) False
25. 25.True or false: a rubber eraser lets water climb up it. (a) False (b) True
26. 26.⚖️ 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 what we measure. (a) False (b) True
27. 27.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
28. 28.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) turmeric powder (c) a white flower (d) a few hours of waiting
29. 29.⚖️ 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 keep it the same (b) we change it (c) we measure it
30. 30.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
31. 31.🛟 What should you do after handling food colour? (a) rub your eyes (b) wash your hands (c) lick your fingers (d) wipe them on walls
32. 32.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
33. 33.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a grown-up (d) a pet
34. 34.🌼 How does coloured water reach the petals? (a) it rains on them (b) through tiny stem tubes (c) through the air (d) it is sprayed on
35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) turmeric powder (c) a white flower (d) a glass of water
36. 36.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) yeast (c) turmeric powder (d) a white flower
37. 37.🔍 Which is the odd one out? (a) a sugar cube (b) a flower stem (c) a piece of chalk (d) a rubber eraser
38. 38.True or false: a piece of foil does not let water climb. (a) True (b) False
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) time for colour to show (b) the amount of colour (c) the length of the stem
40. 40.True or false: food colour is needed for the coloured flower experiment. (a) True (b) False

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