Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 164 · 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.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) food colour (c) a white flower (d) a few hours of waiting
2. 2.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
3. 3.⚖️ 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) True (b) False
4. 4.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) it sinks at once (c) colour climbs up it (d) nothing ever happens
5. 5.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) evaporation (c) magnetism (d) capillary action
6. 6.🔍 Which is the odd one out? (a) a piece of foil (b) a glass marble (c) a sugar cube (d) a rubber eraser
7. 7.🔍 Which is the odd one out? (a) a piece of foil (b) a glass marble (c) a plastic ruler (d) a strip of cloth
8. 8.💧 Which of these does not let water climb? (a) a piece of chalk (b) a cotton thread (c) a rubber eraser (d) a sugar cube
9. 9.🌼 How does coloured water reach the petals? (a) through the air (b) through tiny stem tubes (c) it rains on them (d) it is sprayed on
10. 10.💧 Which of these does not let water climb? (a) a piece of chalk (b) a plastic ruler (c) a paper towel (d) a sugar cube
11. 11.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) no colour change (c) the flower glows (d) the stem turns blue
12. 12.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) the stem is hot (c) petals lose water to air (d) petals are magnetic
13. 13.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a white flower (c) a few hours of waiting (d) a magnet
14. 14.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a magnet (c) a glass of water (d) a battery cell
15. 15.⚖️ 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
16. 16.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
17. 17.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
18. 18.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) food colour (c) turmeric powder (d) a magnet
19. 19.⚖️ 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 room it stands in (b) time for colour to show (c) the kind of flower (d) the length of the stem
20. 20.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False
21. 21.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) turmeric powder (d) a few hours of waiting
22. 22.⚖️ 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 amount of water (c) the room it stands in (d) the length of the stem
23. 23.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
24. 24.True or false: a flower stem lets water climb up it. (a) False (b) True
25. 25.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
26. 26.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
27. 27.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of foil (c) a glass marble (d) a paper towel
28. 28.🧺 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) food colour (d) a mirror
29. 29.⚖️ 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
30. 30.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
31. 31.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
32. 32.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) a glass of water (d) yeast
33. 33.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True
34. 34.True or false: a strip of cloth does not let water climb. (a) True (b) False
35. 35.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
36. 36.🛟 What should you do after handling food colour? (a) rub your eyes (b) wipe them on walls (c) wash your hands (d) lick your fingers
37. 37.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
38. 38.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the petals turn bluish (c) the water turns green (d) the flower floats away
39. 39.🔍 Which is the odd one out? (a) a flower stem (b) a cotton thread (c) a paper towel (d) a piece of foil
40. 40.⚖️ 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 what we measure. (a) True (b) False

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