Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 847 · 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.True or false: a mirror is needed for the coloured flower experiment. (a) True (b) False
2. 2.⚖️ 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
3. 3.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
4. 4.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) turmeric powder (d) a few hours of waiting
5. 5.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) food colour (c) a few hours of waiting (d) turmeric powder
6. 6.🔍 Which is the odd one out? (a) a glass marble (b) a strip of cloth (c) a cotton thread (d) a paper towel
7. 7.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
8. 8.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a glass of water (c) a battery cell (d) food colour
9. 9.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
10. 10.True or false: a piece of chalk does not let water climb. (a) False (b) True
11. 11.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
12. 12.🛟 What should you do after handling food colour? (a) rub your eyes (b) lick your fingers (c) wash your hands (d) wipe them on walls
13. 13.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they turn two colours (c) they fall off at once (d) they all turn green
14. 14.🔍 Which is the odd one out? (a) a strip of cloth (b) a glass marble (c) a plastic ruler (d) a piece of foil
15. 15.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a magnet (c) food colour (d) a few hours of waiting
16. 16.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a strip of cloth (c) a glass marble (d) a steel spoon
17. 17.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
18. 18.🔍 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 petals turn bluish (d) the flower floats away
19. 19.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
20. 20.💧 Which of these lets water climb up it? (a) a paper towel (b) a plastic ruler (c) a piece of foil (d) a steel spoon
21. 21.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
22. 22.True or false: a steel spoon does not let water climb. (a) False (b) True
23. 23.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a battery cell (c) a mirror (d) a glass of water
24. 24.🛟 Who should trim the flower stem? (a) a grown-up (b) anyone, without looking (c) a pet (d) a toddler
25. 25.💧 Which of these lets water climb up it? (a) a steel spoon (b) a piece of foil (c) a plastic ruler (d) a flower stem
26. 26.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
27. 27.🌼 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
28. 28.⚖️ 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 length of the stem (b) time for colour to show (c) the amount of water
29. 29.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) a balloon (d) a white flower
30. 30.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a mirror (c) food colour (d) a white flower
31. 31.⚖️ 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 length of the stem (c) the amount of colour (d) time for colour to show
32. 32.⚖️ 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 length of the stem (b) time for colour to show (c) the room it stands in
33. 33.💧 Which of these does not let water climb? (a) a cotton thread (b) a rubber eraser (c) a flower stem (d) a strip of cloth
34. 34.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) petals are magnetic (c) the stem is hot (d) petals lose water to air
35. 35.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
36. 36.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
37. 37.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
38. 38.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) False (b) True
39. 39.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a magnet (c) food colour (d) a battery cell
40. 40.⚖️ 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 measure it (b) we keep it the same (c) we change it

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