Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 137 · 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 steel spoon lets water climb up it. (a) False (b) True
2. 2.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a white flower (c) a battery cell (d) food colour
3. 3.⚖️ 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 measure it (b) we change it (c) we keep it the same
4. 4.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
5. 5.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through tiny stem tubes (c) through the air (d) it rains on them
6. 6.⚖️ 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 kind of flower (b) time for colour to show (c) the amount of water (d) the length of the stem
7. 7.True or false: a piece of foil does not let water climb. (a) True (b) False
8. 8.🧺 Which of these is not needed for the coloured flower experiment? (a) yeast (b) a glass of water (c) food colour (d) a white flower
9. 9.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a pet (c) a grown-up (d) a toddler
10. 10.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
11. 11.🛟 What should you do after handling food colour? (a) lick your fingers (b) wipe them on walls (c) rub your eyes (d) wash your hands
12. 12.⚖️ 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 measure it (b) we change it (c) we keep it the same
13. 13.True or false: a piece of chalk lets water climb up it. (a) True (b) False
14. 14.💧 Which of these lets water climb up it? (a) a glass marble (b) a paper towel (c) a rubber eraser (d) a plastic ruler
15. 15.⚖️ 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 keep it the same (b) we measure it (c) we change it
16. 16.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
17. 17.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
18. 18.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) turmeric powder (b) a glass of water (c) a few hours of waiting (d) food colour
19. 19.True or false: a sugar cube does not let water climb. (a) False (b) True
20. 20.🔍 Which is the odd one out? (a) a piece of chalk (b) a sugar cube (c) a paper towel (d) a piece of foil
21. 21.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a magnet (c) a white flower (d) food colour
22. 22.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a few hours of waiting (c) a mirror (d) food colour
23. 23.⚖️ 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 what we measure. (a) False (b) True
24. 24.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a mirror (c) turmeric powder (d) a white flower
25. 25.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
26. 26.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
27. 27.💧 Which of these does not let water climb? (a) a sugar cube (b) a cotton thread (c) a plastic ruler (d) a flower stem
28. 28.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
29. 29.True or false: a rubber eraser does not let water climb. (a) True (b) False
30. 30.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a magnet (d) a glass of water
31. 31.⚖️ 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 keep it the same (c) we measure it
32. 32.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
33. 33.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a rubber eraser (c) a piece of chalk (d) a steel spoon
34. 34.⚖️ 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) False (b) True
35. 35.🔍 Which is the odd one out? (a) a strip of cloth (b) a sugar cube (c) a steel spoon (d) a piece of chalk
36. 36.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the flower floats away (c) the water turns green (d) the stem turns to ice
37. 37.⚖️ 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
38. 38.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
39. 39.⚖️ 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
40. 40.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False

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