Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 963 · 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.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a pet (d) a toddler
2. 2.🛟 What should you do after handling food colour? (a) wash your hands (b) lick your fingers (c) wipe them on walls (d) rub your eyes
3. 3.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the petals turn red (c) the stem turns blue (d) no colour change
4. 4.⚖️ 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 keep it the same (c) we measure it
5. 5.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) a piece of foil (b) a sugar cube (c) a glass marble (d) a steel spoon
7. 7.🌼 Why do the petals keep pulling water up the stem? (a) the stem is hot (b) petals are magnetic (c) petals like colour (d) petals lose water to air
8. 8.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
9. 9.⚖️ 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 kind of flower (b) the amount of colour (c) the amount of water (d) time for colour to show
10. 10.🔍 Which is the odd one out? (a) a sugar cube (b) a cotton thread (c) a paper towel (d) a steel spoon
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 fall off at once (b) they turn two colours (c) they stay white (d) they all turn green
12. 12.💧 Which of these does not let water climb? (a) a cotton thread (b) a sugar cube (c) a steel spoon (d) a paper towel
13. 13.🌼 How does coloured water reach the petals? (a) through the air (b) it rains on them (c) it is sprayed on (d) through tiny stem tubes
14. 14.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
15. 15.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a magnet (c) a few hours of waiting (d) a white flower
16. 16.💧 Which of these lets water climb up it? (a) a steel spoon (b) a plastic ruler (c) a rubber eraser (d) a sugar cube
17. 17.⚖️ 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 kind of flower (c) the amount of colour (d) the length of the stem
18. 18.🔍 Which is the odd one out? (a) a piece of chalk (b) a plastic ruler (c) a piece of foil (d) a rubber eraser
19. 19.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
20. 20.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
21. 21.⚖️ 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
22. 22.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
23. 23.⚖️ 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) False (b) True
24. 24.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
25. 25.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
26. 26.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
27. 27.⚖️ 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
28. 28.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) colour climbs up it (c) it turns to plastic (d) it sinks at once
29. 29.⚖️ 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) False (b) True
30. 30.🔍 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
31. 31.True or false: a paper towel does not let water climb. (a) False (b) True
32. 32.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a glass of water (d) a mirror
33. 33.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
34. 34.⚖️ 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 change it (b) we measure it (c) we keep it the same
35. 35.⚖️ 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) False (b) True
36. 36.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) a mirror (c) yeast (d) a balloon
37. 37.True or false: food colour is needed for the coloured flower experiment. (a) True (b) False
38. 38.⚖️ 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 kept the same. (a) True (b) False
39. 39.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
40. 40.🧺 Which of these is not needed for the coloured flower experiment? (a) a battery cell (b) a white flower (c) food colour (d) a glass of water

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