Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 459 · 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 lets water climb up it? (a) a rubber eraser (b) a strip of cloth (c) a plastic ruler (d) a piece of foil
2. 2.🛟 What should you do after handling food colour? (a) wash your hands (b) rub your eyes (c) wipe them on walls (d) lick your fingers
3. 3.⚖️ 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
4. 4.🔮 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 stay white (c) they all turn green (d) they turn two colours
5. 5.💧 Which of these lets water climb up it? (a) a piece of foil (b) a glass marble (c) a cotton thread (d) a steel spoon
6. 6.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
7. 7.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
8. 8.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a balloon (c) a few hours of waiting (d) food colour
9. 9.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False
10. 10.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a magnet (c) a glass of water (d) yeast
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 what we measure. (a) True (b) False
12. 12.🛟 Who should trim the flower stem? (a) a grown-up (b) a pet (c) anyone, without looking (d) a toddler
13. 13.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
14. 14.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
15. 15.True or false: a balloon is needed for the coloured flower experiment. (a) False (b) True
16. 16.True or false: a sugar cube lets water climb up it. (a) False (b) True
17. 17.⚖️ 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 length of the stem (b) the room it stands in (c) the kind of flower (d) time for colour to show
18. 18.⚖️ 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) True (b) False
19. 19.⚖️ 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 measure it (c) we keep it the same
20. 20.True or false: a white flower is not needed for the coloured flower experiment. (a) False (b) True
21. 21.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
22. 22.💧 Which of these does not let water climb? (a) a cotton thread (b) a flower stem (c) a rubber eraser (d) a paper towel
23. 23.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
24. 24.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
25. 25.💧 Which of these lets water climb up it? (a) a piece of foil (b) a steel spoon (c) a glass marble (d) a paper towel
26. 26.🔍 Which is the odd one out? (a) a cotton thread (b) a piece of chalk (c) a rubber eraser (d) a paper towel
27. 27.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) turmeric powder (c) a white flower (d) a glass of water
28. 28.True or false: a piece of foil does not let water climb. (a) False (b) True
29. 29.🌼 Why do the petals keep pulling water up the stem? (a) petals like colour (b) the stem is hot (c) petals are magnetic (d) petals lose water to air
30. 30.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
31. 31.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) food colour (c) a few hours of waiting (d) a white flower
32. 32.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
33. 33.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
34. 34.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a magnet (c) a white flower (d) yeast
35. 35.True or false: a cotton thread does not let water climb. (a) True (b) False
36. 36.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is kept the same. (a) False (b) True
37. 37.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) a few hours of waiting (c) food colour (d) a glass of water
38. 38.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a few hours of waiting (c) food colour (d) a battery cell
39. 39.💧 Which of these does not let water climb? (a) a sugar cube (b) a cotton thread (c) a glass marble (d) a strip of cloth
40. 40.🔍 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

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