Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 342 · 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 glass of water (c) a white flower (d) a magnet
2. 2.⚖️ 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 kind of flower
3. 3.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is the one thing we change. (a) True (b) False
4. 4.🔍 Which is the odd one out? (a) a rubber eraser (b) a strip of cloth (c) a piece of foil (d) a plastic ruler
5. 5.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a glass marble (c) a steel spoon (d) a piece of chalk
6. 6.🔍 Which is the odd one out? (a) a piece of foil (b) a sugar cube (c) a steel spoon (d) a glass marble
7. 7.💧 Which of these does not let water climb? (a) a glass marble (b) a strip of cloth (c) a paper towel (d) a piece of chalk
8. 8.🛟 What should you do after handling food colour? (a) lick your fingers (b) wash your hands (c) wipe them on walls (d) rub your eyes
9. 9.🧺 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
10. 10.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
11. 11.💧 Which of these does not let water climb? (a) a piece of chalk (b) a strip of cloth (c) a plastic ruler (d) a sugar cube
12. 12.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) magnetism (c) melting (d) capillary action
13. 13.🧺 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
14. 14.🔍 Which is the odd one out? (a) a glass marble (b) a rubber eraser (c) a plastic ruler (d) a flower stem
15. 15.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the flower floats away (c) the water turns green (d) the stem turns to ice
16. 16.⚖️ 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) False (b) True
17. 17.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
18. 18.True or false: a flower stem lets water climb up it. (a) False (b) True
19. 19.🛟 Who should trim the flower stem? (a) a pet (b) a grown-up (c) anyone, without looking (d) a toddler
20. 20.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a few hours of waiting (d) a battery cell
21. 21.⚖️ 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
22. 22.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is kept the same. (a) True (b) False
23. 23.⚖️ 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) time for colour to show (b) the amount of colour (c) the amount of water (d) the length of the stem
24. 24.🔍 Which is the odd one out? (a) a steel spoon (b) a rubber eraser (c) a cotton thread (d) a piece of foil
25. 25.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is kept the same. (a) True (b) False
26. 26.⚖️ 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 change it (b) we keep it the same (c) we measure it
27. 27.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) food colour (c) a battery cell (d) a magnet
28. 28.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
29. 29.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
30. 30.🔍 Which is the odd one out? (a) a paper towel (b) a rubber eraser (c) a flower stem (d) a strip of cloth
31. 31.🧺 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 few hours of waiting (d) turmeric powder
32. 32.🌼 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
33. 33.🔮 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 all turn green (c) they fall off at once (d) they turn two colours
34. 34.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a balloon (c) a white flower (d) a battery cell
35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) a few hours of waiting (d) yeast
36. 36.⚖️ 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 keep it the same (c) we change it
37. 37.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
38. 38.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it sinks at once (c) it turns to plastic (d) colour climbs up it
39. 39.⚖️ 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
40. 40.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is what we measure. (a) True (b) False

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