Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 761 · 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.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a white flower (c) a battery cell (d) a glass of water
2. 2.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a few hours of waiting (c) a glass of water (d) yeast
4. 4.⚖️ 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
5. 5.🌼 How does coloured water reach the petals? (a) through the air (b) through tiny stem tubes (c) it rains on them (d) it is sprayed on
6. 6.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the stem turns blue (c) the flower glows (d) no colour change
7. 7.🧺 Which of these is not needed for the coloured flower experiment? (a) a mirror (b) a few hours of waiting (c) food colour (d) a white flower
8. 8.⚖️ 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) True (b) False
9. 9.⚖️ 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 length of the stem (c) the amount of colour
10. 10.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
11. 11.⚖️ 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 measure it (c) we change it
12. 12.💧 Which of these does not let water climb? (a) a steel spoon (b) a paper towel (c) a piece of chalk (d) a strip of cloth
13. 13.🔍 Which is the odd one out? (a) a sugar cube (b) a cotton thread (c) a glass marble (d) a paper towel
14. 14.🛟 Who should trim the flower stem? (a) a toddler (b) a grown-up (c) a pet (d) anyone, without looking
15. 15.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a battery cell (c) a white flower (d) food colour
16. 16.⚖️ 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 what we measure. (a) False (b) True
17. 17.💧 Which of these lets water climb up it? (a) a strip of cloth (b) a piece of foil (c) a plastic ruler (d) a rubber eraser
18. 18.💧 Which of these does not let water climb? (a) a sugar cube (b) a flower stem (c) a strip of cloth (d) a piece of foil
19. 19.True or false: a flower stem does not let water climb. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) a strip of cloth (b) a cotton thread (c) a flower stem (d) a plastic ruler
21. 21.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
22. 22.True or false: a sugar cube does not let water climb. (a) False (b) True
23. 23.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
24. 24.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
25. 25.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
26. 26.🔍 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 petals turn bluish (d) the stem turns to ice
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 water”? (a) we change it (b) we measure it (c) we keep it the same
28. 28.⚖️ 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
29. 29.🧺 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 mirror (d) a glass of water
30. 30.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) petals lose water to air (c) petals are magnetic (d) the stem is hot
31. 31.⚖️ 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
32. 32.⚖️ 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
33. 33.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) nothing ever happens (c) it sinks at once (d) colour climbs up it
34. 34.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
35. 35.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) a plastic ruler (b) a steel spoon (c) a rubber eraser (d) a strip of cloth
37. 37.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) food colour (c) a battery cell (d) a magnet
38. 38.🔍 Which is the odd one out? (a) a strip of cloth (b) a sugar cube (c) a steel spoon (d) a cotton thread
39. 39.⚖️ 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
40. 40.True or false: a rubber eraser does not let water climb. (a) True (b) False

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