Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 724 · 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.⚖️ 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 room it stands in (b) the amount of colour (c) the length of the stem (d) the amount of water
2. 2.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
3. 3.🛟 What should you do after handling food colour? (a) rub your eyes (b) wash your hands (c) lick your fingers (d) wipe them on walls
4. 4.⚖️ 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 change it (b) we measure it (c) we keep it the same
5. 5.⚖️ 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 keep it the same (b) we change it (c) we measure it
6. 6.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) a balloon (c) a battery cell (d) turmeric powder
7. 7.⚖️ 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
8. 8.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
9. 9.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
10. 10.True or false: turmeric powder is needed for the coloured flower experiment. (a) False (b) True
11. 11.True or false: a glass marble does not let water climb. (a) True (b) False
12. 12.🧺 Which of these is not needed for the coloured flower experiment? (a) yeast (b) a white flower (c) food colour (d) a few hours of waiting
13. 13.True or false: a piece of foil lets water climb up it. (a) False (b) True
14. 14.⚖️ 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) the room it stands in (c) the kind of flower (d) time for colour to show
15. 15.💧 Which of these does not let water climb? (a) a flower stem (b) a piece of foil (c) a paper towel (d) a sugar cube
16. 16.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) it sinks at once (c) nothing ever happens (d) colour climbs up it
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 amount of colour (c) the length of the stem
18. 18.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
19. 19.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
20. 20.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
21. 21.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
22. 22.🛟 Who should trim the flower stem? (a) a grown-up (b) a toddler (c) a pet (d) anyone, without looking
23. 23.True or false: a rubber eraser does not let water climb. (a) False (b) True
24. 24.True or false: a steel spoon lets water climb up it. (a) True (b) False
25. 25.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
26. 26.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) False (b) True
27. 27.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the stem turns to ice (c) the flower floats away (d) the petals turn bluish
28. 28.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a steel spoon (c) a flower stem (d) a glass marble
29. 29.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) yeast (c) food colour (d) a white flower
30. 30.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a balloon (b) a few hours of waiting (c) a white flower (d) food colour
31. 31.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is the one thing we change. (a) True (b) False
32. 32.🧺 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) food colour (d) a mirror
33. 33.🧺 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) food colour (d) turmeric powder
34. 34.🔍 Which is the odd one out? (a) a flower stem (b) a sugar cube (c) a steel spoon (d) a paper towel
35. 35.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
36. 36.🌼 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
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 water”? (a) we change it (b) we measure it (c) we keep it the same
38. 38.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
39. 39.🔍 Which is the odd one out? (a) a rubber eraser (b) a sugar cube (c) a glass marble (d) a steel spoon
40. 40.🔍 Which is the odd one out? (a) a sugar cube (b) a flower stem (c) a glass marble (d) a paper towel

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