Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 173 · 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.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
2. 2.True or false: a paper towel does not let water climb. (a) True (b) False
3. 3.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
4. 4.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
5. 5.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a mirror (c) a white flower (d) food colour
6. 6.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
7. 7.📘 What is it called when water climbs up thin tubes or paper by itself? (a) capillary action (b) evaporation (c) magnetism (d) melting
8. 8.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a pet (d) a grown-up
9. 9.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
10. 10.🔍 Which is the odd one out? (a) a strip of cloth (b) a paper towel (c) a glass marble (d) a piece of chalk
11. 11.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the stem turns blue (c) no colour change (d) the flower glows
12. 12.🔍 Which is the odd one out? (a) a plastic ruler (b) a strip of cloth (c) a sugar cube (d) a paper towel
13. 13.⚖️ 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) time for colour to show (c) the amount of water (d) the length of the stem
14. 14.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a mirror (c) food colour (d) turmeric powder
15. 15.💧 Which of these does not let water climb? (a) a flower stem (b) a cotton thread (c) a rubber eraser (d) a paper towel
16. 16.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a battery cell (d) a white flower
17. 17.⚖️ 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 room it stands in (c) the length of the stem
18. 18.💧 Which of these lets water climb up it? (a) a paper towel (b) a piece of foil (c) a steel spoon (d) a glass marble
19. 19.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a white flower (c) a few hours of waiting (d) a battery cell
20. 20.True or false: a glass of water is 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 white flower (b) a glass of water (c) a magnet (d) a few hours of waiting
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.True or false: a rubber eraser does not let water climb. (a) True (b) False
24. 24.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
25. 25.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
26. 26.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) True (b) False
27. 27.True or false: a cotton thread does not let water climb. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) a piece of foil (b) a plastic ruler (c) a steel spoon (d) a paper towel
29. 29.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a steel spoon (c) a glass marble (d) a strip of cloth
30. 30.⚖️ 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 keep it the same (c) we change it
31. 31.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it turns to plastic (c) colour climbs up it (d) it sinks at once
32. 32.🔍 Which is the odd one out? (a) a rubber eraser (b) a paper towel (c) a cotton thread (d) a flower stem
33. 33.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wash your hands (d) wipe them on walls
34. 34.💧 Which of these lets water climb up it? (a) a flower stem (b) a glass marble (c) a steel spoon (d) a piece of foil
35. 35.⚖️ 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) time for colour to show (c) the amount of colour (d) the room it stands in
36. 36.⚖️ 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 the one thing we change. (a) False (b) True
37. 37.⚖️ 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 keep it the same (b) we change it (c) we measure it
38. 38.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of water”? (a) we change it (b) we keep it the same (c) we measure it
39. 39.🔍 Which is the odd one out? (a) a steel spoon (b) a piece of chalk (c) a plastic ruler (d) a rubber eraser
40. 40.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False

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