Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 345 · 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 glass of water (b) food colour (c) a magnet (d) a few hours of waiting
2. 2.⚖️ 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 room it stands in
3. 3.🔍 Which is the odd one out? (a) a glass marble (b) a plastic ruler (c) a piece of chalk (d) a rubber eraser
4. 4.💧 Which of these lets water climb up it? (a) a glass marble (b) a sugar cube (c) a rubber eraser (d) a steel spoon
5. 5.🔍 Which is the odd one out? (a) a paper towel (b) a strip of cloth (c) a cotton thread (d) a rubber eraser
6. 6.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a battery cell (c) a glass of water (d) a few hours of waiting
7. 7.💧 Which of these does not let water climb? (a) a plastic ruler (b) a cotton thread (c) a paper towel (d) a flower stem
8. 8.True or false: a paper towel does not let water climb. (a) False (b) True
9. 9.⚖️ 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 keep it the same (b) we measure it (c) we change it
10. 10.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
11. 11.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
12. 12.🧺 Which of these is not needed for the coloured flower experiment? (a) a mirror (b) a white flower (c) food colour (d) a glass of water
13. 13.True or false: a sugar cube does not let water climb. (a) False (b) True
14. 14.⚖️ 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
15. 15.⚖️ 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) False (b) True
16. 16.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
17. 17.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
18. 18.🔍 Which is the odd one out? (a) a cotton thread (b) a piece of chalk (c) a sugar cube (d) a steel spoon
19. 19.🔮 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
20. 20.🔍 Which is the odd one out? (a) a glass marble (b) a sugar cube (c) a paper towel (d) a strip of cloth
21. 21.⚖️ 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
22. 22.💧 Which of these lets water climb up it? (a) a paper towel (b) a piece of foil (c) a steel spoon (d) a plastic ruler
23. 23.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
24. 24.📘 What is it called when water climbs up thin tubes or paper by itself? (a) capillary action (b) melting (c) magnetism (d) evaporation
25. 25.🛟 Who should trim the flower stem? (a) a pet (b) a grown-up (c) a toddler (d) anyone, without looking
26. 26.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is kept the same. (a) True (b) False
27. 27.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
28. 28.🧺 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 white flower (d) a balloon
29. 29.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
30. 30.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
31. 31.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
32. 32.🛟 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
33. 33.💧 Which of these does not let water climb? (a) a paper towel (b) a flower stem (c) a piece of foil (d) a sugar cube
34. 34.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the water turns green (c) the stem turns to ice (d) the petals turn bluish
35. 35.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the stem turns blue (c) the petals turn red (d) the flower glows
36. 36.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a glass of water (c) a white flower (d) yeast
37. 37.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the amount of colour”? (a) we measure it (b) we keep it the same (c) we change it
38. 38.⚖️ 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
39. 39.💧 Which of these lets water climb up it? (a) a flower stem (b) a glass marble (c) a rubber eraser (d) a piece of foil
40. 40.True or false: turmeric powder is needed for the coloured flower experiment. (a) False (b) True

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