Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 676 · 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 what we measure? (a) the amount of water (b) time for colour to show (c) the kind of flower (d) the room it stands in
2. 2.True or false: food colour is not needed for the coloured flower experiment. (a) False (b) True
3. 3.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
4. 4.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) a battery cell (d) a white flower
5. 5.🌼 Why do the petals keep pulling water up the stem? (a) petals lose water to air (b) the stem is hot (c) petals like colour (d) petals are magnetic
6. 6.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
7. 7.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
8. 8.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) it turns to plastic (c) it sinks at once (d) colour climbs up it
9. 9.True or false: a magnet is not needed for the coloured flower experiment. (a) False (b) True
10. 10.⚖️ 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 kept the same. (a) False (b) True
11. 11.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a mirror (c) a few hours of waiting (d) a magnet
12. 12.🧺 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) food colour (d) yeast
13. 13.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through tiny stem tubes (c) through the air (d) it rains on them
14. 14.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they fall off at once (c) they turn two colours (d) they all turn green
15. 15.⚖️ 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
16. 16.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) a battery cell (c) a magnet (d) a balloon
17. 17.⚖️ 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
18. 18.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of foil (c) a flower stem (d) a steel spoon
19. 19.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
20. 20.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a steel spoon (c) a glass marble (d) a sugar cube
21. 21.🔍 Which is the odd one out? (a) a sugar cube (b) a rubber eraser (c) a cotton thread (d) a strip of cloth
22. 22.💧 Which of these does not let water climb? (a) a cotton thread (b) a strip of cloth (c) a paper towel (d) a rubber eraser
23. 23.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
24. 24.⚖️ 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
25. 25.⚖️ 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 keep it the same (b) we measure it (c) we change it
26. 26.True or false: a steel spoon lets water climb up it. (a) True (b) False
27. 27.🔍 Which is the odd one out? (a) a sugar cube (b) a steel spoon (c) a piece of chalk (d) a flower stem
28. 28.⚖️ 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 amount of colour (c) time for colour to show (d) the length of the stem
29. 29.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a glass marble (c) a cotton thread (d) a piece of foil
30. 30.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is what we measure. (a) True (b) False
31. 31.⚖️ 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
32. 32.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the stem turns to ice (c) the flower floats away (d) the water turns green
33. 33.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
34. 34.🧺 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) a glass of water
35. 35.⚖️ 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 change it (b) we measure it (c) we keep it the same
36. 36.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True
37. 37.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a few hours of waiting (c) a white flower (d) yeast
38. 38.💧 Which of these lets water climb up it? (a) a glass marble (b) a paper towel (c) a piece of foil (d) a rubber eraser
39. 39.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
40. 40.🔍 Which is the odd one out? (a) a flower stem (b) a paper towel (c) a plastic ruler (d) a sugar cube

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