Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 236 · 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.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
2. 2.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a pet (c) a toddler (d) a grown-up
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) a few hours of waiting (c) a glass of water (d) a white flower
4. 4.True or false: food colour is not needed for the coloured flower experiment. (a) False (b) True
5. 5.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) a balloon (c) turmeric powder (d) a magnet
6. 6.True or false: a piece of foil lets water climb up it. (a) False (b) True
7. 7.⚖️ 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
8. 8.True or false: a piece of foil does not let water climb. (a) False (b) True
9. 9.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a few hours of waiting (d) a mirror
10. 10.🔍 Which is the odd one out? (a) a plastic ruler (b) a sugar cube (c) a piece of foil (d) a steel spoon
11. 11.🔍 Which is the odd one out? (a) a rubber eraser (b) a piece of foil (c) a glass marble (d) a strip of cloth
12. 12.⚖️ 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
13. 13.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
14. 14.⚖️ 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
15. 15.⚖️ 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 length of the stem (c) the kind of flower (d) the room it stands in
16. 16.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
17. 17.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
18. 18.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a balloon (c) a glass of water (d) a white flower
19. 19.🌼 Why do the petals keep pulling water up the stem? (a) petals lose water to air (b) petals are magnetic (c) petals like colour (d) the stem is hot
20. 20.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
21. 21.🛟 What should you do after handling food colour? (a) wipe them on walls (b) lick your fingers (c) wash your hands (d) rub your eyes
22. 22.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a battery cell (c) a white flower (d) a few hours of waiting
23. 23.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the flower floats away (c) the stem turns to ice (d) the petals turn bluish
24. 24.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) no colour change (c) the stem turns blue (d) the flower glows
25. 25.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
26. 26.🧺 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) a few hours of waiting (d) yeast
27. 27.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
28. 28.🔍 Which is the odd one out? (a) a rubber eraser (b) a piece of foil (c) a plastic ruler (d) a paper towel
29. 29.⚖️ 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 room it stands in (b) the length of the stem (c) time for colour to show
30. 30.💧 Which of these does not let water climb? (a) a flower stem (b) a cotton thread (c) a paper towel (d) a rubber eraser
31. 31.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it sinks at once (c) it turns to plastic (d) nothing ever happens
32. 32.⚖️ 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 length of the stem (b) the room it stands in (c) the amount of water (d) time for colour to show
33. 33.⚖️ 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 measure it (b) we change it (c) we keep it the same
34. 34.⚖️ 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) False (b) True
35. 35.⚖️ 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) True (b) False
36. 36.True or false: a glass marble does not let water climb. (a) False (b) True
37. 37.⚖️ 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) time for colour to show (c) the amount of colour
38. 38.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through the air (c) through tiny stem tubes (d) it rains on them
39. 39.⚖️ 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 change it (b) we keep it the same (c) we measure it
40. 40.💧 Which of these lets water climb up it? (a) a piece of foil (b) a glass marble (c) a rubber eraser (d) a sugar cube

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