Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 573 · 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.True or false: a mirror is not needed for the coloured flower experiment. (a) True (b) False
2. 2.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the flower glows (c) the stem turns blue (d) the petals turn red
3. 3.🔍 Which is the odd one out? (a) a sugar cube (b) a paper towel (c) a piece of chalk (d) a piece of foil
4. 4.⚖️ 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
5. 5.⚖️ 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 kind of flower (c) the room it stands in (d) the length of the stem
6. 6.⚖️ 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 change it (b) we measure it (c) we keep it the same
7. 7.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) a grown-up (d) anyone, without looking
8. 8.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a balloon (d) a glass of water
9. 9.True or false: a rubber eraser lets water climb up it. (a) True (b) False
10. 10.⚖️ 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) False (b) True
11. 11.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) turmeric powder (c) a balloon (d) yeast
12. 12.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? Which of these is what we measure? (a) time for colour to show (b) the room it stands in (c) the kind of flower (d) the amount of water
13. 13.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) the stem is hot (c) petals like colour (d) petals lose water to air
14. 14.True or false: a sugar cube lets water climb up it. (a) False (b) True
15. 15.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) a glass of water (c) food colour (d) a white flower
16. 16.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
17. 17.🔍 Which is the odd one out? (a) a piece of chalk (b) a glass marble (c) a steel spoon (d) a rubber eraser
18. 18.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True
19. 19.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a mirror (c) a few hours of waiting (d) food colour
20. 20.🌼 How does coloured water reach the petals? (a) it rains on them (b) it is sprayed on (c) through the air (d) through tiny stem tubes
21. 21.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
22. 22.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the stem turns to ice (c) the petals turn bluish (d) the water turns green
23. 23.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
24. 24.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a balloon (c) a white flower (d) a few hours of waiting
25. 25.⚖️ 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 change it (b) we keep it the same (c) we measure it
26. 26.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they turn two colours (b) they fall off at once (c) they stay white (d) they all turn green
27. 27.⚖️ 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
28. 28.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
29. 29.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
30. 30.True or false: a paper towel lets water climb up it. (a) False (b) True
31. 31.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
32. 32.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) turmeric powder (c) a glass of water (d) a white flower
33. 33.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is the one thing we change. (a) False (b) True
34. 34.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
35. 35.⚖️ 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 amount of water
36. 36.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
37. 37.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) yeast (c) a few hours of waiting (d) turmeric powder
38. 38.🧺 Do we need a glass of water for the coloured flower experiment? (a) needed (b) not needed
39. 39.True or false: a plastic ruler lets water climb up it. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a flower stem (b) a cotton thread (c) a steel spoon (d) a piece of chalk

Free science experiments lessons, practice and worksheets at talentjr.in/science-experiments-for-kids