Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 613 · 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 magnet (b) a few hours of waiting (c) food colour (d) a glass of water
2. 2.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) evaporation (c) melting (d) capillary action
3. 3.True or false: a rubber eraser does not let water climb. (a) True (b) False
4. 4.⚖️ 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
5. 5.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) nothing ever happens (c) colour climbs up it (d) it sinks at once
6. 6.⚖️ 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
7. 7.🧺 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) turmeric powder
8. 8.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) a white flower (c) a few hours of waiting (d) food colour
9. 9.🔍 Which is the odd one out? (a) a flower stem (b) a piece of chalk (c) a glass marble (d) a strip of cloth
10. 10.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a toddler (d) a pet
11. 11.⚖️ 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) time for colour to show (c) the kind of flower (d) the room it stands in
12. 12.🛟 What should you do after handling food colour? (a) rub your eyes (b) wash your hands (c) wipe them on walls (d) lick your fingers
13. 13.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of chalk (c) a piece of foil (d) a glass marble
14. 14.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
15. 15.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
16. 16.💧 Which of these lets water climb up it? (a) a piece of foil (b) a piece of chalk (c) a plastic ruler (d) a steel spoon
17. 17.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
18. 18.⚖️ 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
19. 19.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) yeast (c) a battery cell (d) a glass of water
20. 20.🧺 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 magnet (d) a white flower
21. 21.💧 Which of these does not let water climb? (a) a piece of chalk (b) a paper towel (c) a sugar cube (d) a plastic ruler
22. 22.⚖️ 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
23. 23.True or false: a piece of chalk lets water climb up it. (a) False (b) True
24. 24.🧺 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 balloon
25. 25.💧 Which of these does not let water climb? (a) a cotton thread (b) a steel spoon (c) a strip of cloth (d) a piece of chalk
26. 26.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) petals lose water to air (c) the stem is hot (d) petals are magnetic
27. 27.🌼 How does coloured water reach the petals? (a) through the air (b) it is sprayed on (c) through tiny stem tubes (d) it rains on them
28. 28.⚖️ 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
29. 29.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
30. 30.True or false: food colour is not needed for the coloured flower experiment. (a) False (b) True
31. 31.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a sugar cube (c) a glass marble (d) a piece of foil
32. 32.True or false: a balloon is needed for the coloured flower experiment. (a) True (b) False
33. 33.⚖️ 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
34. 34.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
35. 35.⚖️ 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 water (b) the kind of flower (c) the amount of colour (d) the length of the stem
36. 36.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a plastic ruler (c) a steel spoon (d) a flower stem
37. 37.⚖️ 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
38. 38.⚖️ 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
39. 39.🔍 Which is the odd one out? (a) a piece of foil (b) a rubber eraser (c) a plastic ruler (d) a strip of cloth
40. 40.True or false: a sugar cube lets water climb up it. (a) False (b) True

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