Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 478 · 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 needed for the coloured flower experiment? (a) a glass of water (b) a mirror (c) a balloon (d) a magnet
2. 2.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
3. 3.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
4. 4.⚖️ 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) False (b) True
5. 5.🔍 Which is the odd one out? (a) a steel spoon (b) a plastic ruler (c) a cotton thread (d) a piece of foil
6. 6.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
7. 7.True or false: a paper towel does not let water climb. (a) False (b) True
8. 8.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
9. 9.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
10. 10.💧 Which of these lets water climb up it? (a) a steel spoon (b) a rubber eraser (c) a paper towel (d) a piece of foil
11. 11.🔮 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 all turn green (d) they fall off at once
12. 12.⚖️ 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
13. 13.True or false: a paper towel lets water climb up it. (a) False (b) True
14. 14.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) a white flower (c) a few hours of waiting (d) food colour
15. 15.⚖️ 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
16. 16.🌼 How does coloured water reach the petals? (a) it rains on them (b) through the air (c) through tiny stem tubes (d) it is sprayed on
17. 17.True or false: a flower stem lets water climb up it. (a) False (b) True
18. 18.⚖️ 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 measure it (b) we change it (c) we keep it the same
19. 19.True or false: yeast is 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? What do we do with “the length of the stem”? (a) we change it (b) we measure it (c) we keep it the same
21. 21.🛟 What should you do after handling food colour? (a) wash your hands (b) rub your eyes (c) wipe them on walls (d) lick your fingers
22. 22.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
23. 23.🧺 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) a balloon (d) food colour
24. 24.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
25. 25.🧺 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
26. 26.🛟 Who should trim the flower stem? (a) a pet (b) a toddler (c) anyone, without looking (d) a grown-up
27. 27.True or false: a glass of water is not needed for the coloured flower experiment. (a) True (b) False
28. 28.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
29. 29.💧 Which of these does not let water climb? (a) a steel spoon (b) a strip of cloth (c) a flower stem (d) a piece of chalk
30. 30.True or false: a piece of foil does not let water climb. (a) True (b) False
31. 31.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) colour climbs up it (c) it sinks at once (d) it turns to plastic
32. 32.💧 Which of these does not let water climb? (a) a glass marble (b) a cotton thread (c) a sugar cube (d) a paper towel
33. 33.⚖️ 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
34. 34.⚖️ 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 length of the stem (c) the amount of colour (d) the room it stands in
35. 35.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) a magnet (d) a white flower
36. 36.🔍 Which is the odd one out? (a) a steel spoon (b) a plastic ruler (c) a rubber eraser (d) a strip of cloth
37. 37.True or false: a magnet is needed for the coloured flower experiment. (a) False (b) True
38. 38.⚖️ 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 colour (c) time for colour to show
39. 39.True or false: a strip of cloth lets water climb up it. (a) True (b) False
40. 40.💧 Which of these lets water climb up it? (a) a piece of chalk (b) a rubber eraser (c) a glass marble (d) a steel spoon

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