Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 874 · 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 does not let water climb? (a) a rubber eraser (b) a piece of chalk (c) a strip of cloth (d) a paper towel
2. 2.⚖️ 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 change it (c) we measure it
3. 3.🧺 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) a balloon
4. 4.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a balloon (c) a few hours of waiting (d) a glass of water
5. 5.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) turmeric powder (c) food colour (d) yeast
6. 6.⚖️ 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) True (b) False
7. 7.🛟 Who should trim the flower stem? (a) a pet (b) a grown-up (c) a toddler (d) anyone, without looking
8. 8.True or false: turmeric powder is needed for the coloured flower experiment. (a) False (b) True
9. 9.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the petals turn bluish (c) the stem turns to ice (d) the flower floats away
10. 10.🔍 Which is the odd one out? (a) a paper towel (b) a plastic ruler (c) a piece of chalk (d) a flower stem
11. 11.🔍 Which is the odd one out? (a) a rubber eraser (b) a glass marble (c) a plastic ruler (d) a paper towel
12. 12.⚖️ 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 length of the stem (d) time for colour to show
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 change it (b) we measure it (c) we keep it the same
14. 14.🛟 What should you do after handling food colour? (a) wipe them on walls (b) rub your eyes (c) lick your fingers (d) wash your hands
15. 15.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a few hours of waiting (c) a magnet (d) a glass of water
16. 16.True or false: a mirror is not needed for the coloured flower experiment. (a) False (b) True
17. 17.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) False (b) True
18. 18.True or false: a battery cell is not needed for the coloured flower experiment. (a) False (b) True
19. 19.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
20. 20.⚖️ 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 length of the stem (c) the room it stands in
21. 21.⚖️ 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) the room it stands in (c) the kind of flower (d) the length of the stem
22. 22.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) a white flower (d) a mirror
23. 23.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) yeast (c) food colour (d) a glass of water
24. 24.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
25. 25.🧺 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 white flower (d) a magnet
26. 26.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
27. 27.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the stem turns blue (c) no colour change (d) the flower glows
28. 28.💧 Which of these lets water climb up it? (a) a piece of foil (b) a flower stem (c) a plastic ruler (d) a rubber eraser
29. 29.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a mirror (c) a few hours of waiting (d) a balloon
30. 30.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is kept the same. (a) False (b) True
31. 31.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
32. 32.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) food colour (c) a battery cell (d) a few hours of waiting
33. 33.🔍 Which is the odd one out? (a) a cotton thread (b) a glass marble (c) a plastic ruler (d) a piece of foil
34. 34.⚖️ 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) the amount of water (c) time for colour to show
35. 35.⚖️ 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 measure it (c) we change it
36. 36.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a piece of foil (c) a piece of chalk (d) a steel spoon
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.🔮 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
39. 39.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a battery cell (c) a glass of water (d) a white flower
40. 40.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it

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