Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 892 · 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 the one thing we change. (a) True (b) False
2. 2.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
3. 3.⚖️ 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 keep it the same (b) we change it (c) we measure it
4. 4.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) a mirror (c) a balloon (d) a magnet
5. 5.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a mirror (c) a white flower (d) food colour
6. 6.⚖️ 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) False (b) True
7. 7.🔮 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 all turn green (c) they stay white (d) they fall off at once
8. 8.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
9. 9.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
10. 10.🔮 What would change if the flower stood in plain water? (a) the stem turns blue (b) the flower glows (c) the petals turn red (d) no colour change
11. 11.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
12. 12.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
13. 13.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is what we measure. (a) True (b) False
14. 14.True or false: a flower stem lets water climb up it. (a) False (b) True
15. 15.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) yeast (c) a few hours of waiting (d) a mirror
16. 16.⚖️ 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 amount of colour (b) the kind of flower (c) time for colour to show (d) the room it stands in
17. 17.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
18. 18.⚖️ 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 measure it (b) we change it (c) we keep it the same
19. 19.🛟 What should you do after handling food colour? (a) wipe them on walls (b) lick your fingers (c) rub your eyes (d) wash your hands
20. 20.True or false: turmeric powder is not needed for the coloured flower experiment. (a) False (b) True
21. 21.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False
22. 22.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) food colour (c) a white flower (d) a magnet
23. 23.True or false: a steel spoon lets water climb up it. (a) True (b) False
24. 24.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
25. 25.💧 Which of these lets water climb up it? (a) a steel spoon (b) a piece of foil (c) a piece of chalk (d) a plastic ruler
26. 26.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a battery cell (d) a glass of water
28. 28.⚖️ 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 the one thing we change. (a) False (b) True
29. 29.⚖️ 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
30. 30.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
31. 31.True or false: a cotton thread does not let water climb. (a) True (b) False
32. 32.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a pet (c) a toddler (d) a grown-up
33. 33.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the petals turn bluish (c) the flower floats away (d) the water turns green
34. 34.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
35. 35.True or false: food colour is needed for the coloured flower experiment. (a) False (b) True
36. 36.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
37. 37.🔍 Which is the odd one out? (a) a sugar cube (b) a cotton thread (c) a flower stem (d) a piece of foil
38. 38.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
39. 39.True or false: a plastic ruler does not let water climb. (a) False (b) True
40. 40.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb

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