Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 330 · 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.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
2. 2.⚖️ 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
3. 3.💧 Which of these lets water climb up it? (a) a cotton thread (b) a rubber eraser (c) a plastic ruler (d) a piece of foil
4. 4.🔍 Which is the odd one out? (a) a sugar cube (b) a plastic ruler (c) a rubber eraser (d) a piece of foil
5. 5.⚖️ 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
6. 6.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a glass of water (c) food colour (d) a balloon
7. 7.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
8. 8.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
9. 9.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the petals turn bluish (c) the flower floats away (d) the stem turns to ice
10. 10.⚖️ 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
11. 11.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a magnet (c) food colour (d) a balloon
12. 12.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
13. 13.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a battery cell (c) a mirror (d) a white flower
14. 14.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a toddler (d) a pet
15. 15.🔮 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
16. 16.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False
17. 17.🔍 Which is the odd one out? (a) a steel spoon (b) a glass marble (c) a piece of foil (d) a paper towel
18. 18.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
19. 19.True or false: yeast is needed for the coloured flower experiment. (a) True (b) False
20. 20.True or false: a flower stem does not let water climb. (a) False (b) True
21. 21.⚖️ 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 room it stands in (b) the kind of flower (c) time for colour to show (d) the amount of water
22. 22.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
23. 23.⚖️ 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
24. 24.🌼 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
25. 25.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
26. 26.🛟 What should you do after handling food colour? (a) wash your hands (b) rub your eyes (c) lick your fingers (d) wipe them on walls
27. 27.⚖️ 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 room it stands in
28. 28.🧺 Do we need turmeric powder for the coloured flower experiment? (a) not needed (b) needed
29. 29.🧺 Do we need food colour for the coloured flower experiment? (a) not needed (b) needed
30. 30.💧 Which of these does not let water climb? (a) a plastic ruler (b) a cotton thread (c) a flower stem (d) a paper towel
31. 31.True or false: a piece of foil lets water climb up it. (a) False (b) True
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 kept the same. (a) True (b) False
33. 33.True or false: a few hours of waiting is needed for the coloured flower experiment. (a) False (b) True
34. 34.True or false: a sugar cube lets water climb up it. (a) True (b) False
35. 35.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is what we measure. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) a steel spoon (b) a strip of cloth (c) a plastic ruler (d) a glass marble
37. 37.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a balloon (c) a magnet (d) a glass of water
38. 38.True or false: a magnet is not needed for the coloured flower experiment. (a) False (b) True
39. 39.True or false: a strip of cloth does not let water climb. (a) False (b) True
40. 40.💧 Which of these does not let water climb? (a) a strip of cloth (b) a sugar cube (c) a rubber eraser (d) a flower stem

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