Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 343 · 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 white flower is not needed for the coloured flower experiment. (a) True (b) False
2. 2.⚖️ 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 change it (c) we keep it the same
3. 3.🧺 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 magnet
4. 4.⚖️ 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 kind of flower (c) the length of the stem (d) the amount of water
5. 5.🛟 Who should trim the flower stem? (a) a toddler (b) a grown-up (c) anyone, without looking (d) a pet
6. 6.True or false: a piece of chalk does not let water climb. (a) True (b) False
7. 7.⚖️ 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) True (b) False
8. 8.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a balloon (c) yeast (d) food colour
9. 9.⚖️ 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 keep it the same (c) we measure it
10. 10.⚖️ 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 amount of colour (b) time for colour to show (c) the length of the stem
11. 11.⚖️ 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) True (b) False
12. 12.🔍 Which is the odd one out? (a) a flower stem (b) a strip of cloth (c) a paper towel (d) a rubber eraser
13. 13.⚖️ 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 water (c) the length of the stem
14. 14.⚖️ 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
15. 15.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a magnet (c) food colour (d) a white flower
16. 16.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: time for colour to show is the one thing we change. (a) False (b) True
17. 17.💧 Which of these does not let water climb? (a) a flower stem (b) a sugar cube (c) a piece of chalk (d) a steel spoon
18. 18.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) magnetism (c) melting (d) capillary action
19. 19.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) turmeric powder (b) a few hours of waiting (c) a white flower (d) food colour
20. 20.⚖️ 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 change it (c) we measure it
21. 21.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they fall off at once (b) they all turn green (c) they turn two colours (d) they stay white
22. 22.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
23. 23.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a glass of water (c) a few hours of waiting (d) food colour
24. 24.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a mirror (c) a glass of water (d) a few hours of waiting
25. 25.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a balloon (c) a white flower (d) food colour
26. 26.🔍 Which is the odd one out? (a) a glass marble (b) a piece of foil (c) a plastic ruler (d) a flower stem
27. 27.🌼 Why do the petals keep pulling water up the stem? (a) petals are magnetic (b) petals lose water to air (c) petals like colour (d) the stem is hot
28. 28.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
29. 29.🔍 Which is the odd one out? (a) a rubber eraser (b) a piece of foil (c) a steel spoon (d) a piece of chalk
30. 30.🧺 Which of these is needed for the coloured flower experiment? (a) a glass of water (b) a balloon (c) yeast (d) a mirror
31. 31.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
32. 32.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
33. 33.🌼 How does coloured water reach the petals? (a) through tiny stem tubes (b) it is sprayed on (c) through the air (d) it rains on them
34. 34.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
35. 35.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
36. 36.🔍 Which is the odd one out? (a) a glass marble (b) a flower stem (c) a sugar cube (d) a cotton thread
37. 37.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
38. 38.💧 Which of these does not let water climb? (a) a sugar cube (b) a paper towel (c) a glass marble (d) a flower stem
39. 39.🔍 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
40. 40.True or false: a flower stem does not let water climb. (a) True (b) False

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