Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 822 · 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.🛟 Who should trim the flower stem? (a) a grown-up (b) a toddler (c) anyone, without looking (d) a pet
2. 2.🧺 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) turmeric powder
3. 3.True or false: a piece of foil lets water climb up it. (a) False (b) True
4. 4.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the stem turns to ice (c) the petals turn bluish (d) the flower floats away
5. 5.⚖️ 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) False (b) True
6. 6.True or false: a flower stem lets water climb up it. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) a plastic ruler (b) a piece of chalk (c) a rubber eraser (d) a piece of foil
8. 8.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) food colour (c) a few hours of waiting (d) a mirror
9. 9.⚖️ 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
10. 10.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a few hours of waiting (c) a white flower (d) a battery cell
11. 11.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) yeast (c) a few hours of waiting (d) food colour
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) a glass of water (c) a few hours of waiting (d) a white flower
13. 13.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
14. 14.🔍 Which is the odd one out? (a) a glass marble (b) a piece of chalk (c) a paper towel (d) a sugar cube
15. 15.True or false: a rubber eraser does not let water climb. (a) False (b) True
16. 16.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
17. 17.⚖️ 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) False (b) True
18. 18.True or false: a steel spoon lets water climb up it. (a) False (b) True
19. 19.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a mirror (c) a glass of water (d) a white flower
20. 20.⚖️ 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 amount of water (b) time for colour to show (c) the length of the stem (d) the room it stands in
21. 21.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
22. 22.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a white flower (c) a magnet (d) food colour
23. 23.🔍 Which is the odd one out? (a) a paper towel (b) a cotton thread (c) a plastic ruler (d) a piece of chalk
24. 24.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a magnet (c) a few hours of waiting (d) a balloon
25. 25.💧 Which of these lets water climb up it? (a) a strip of cloth (b) a steel spoon (c) a plastic ruler (d) a rubber eraser
26. 26.🌼 How does coloured water reach the petals? (a) it rains on them (b) it is sprayed on (c) through tiny stem tubes (d) through the air
27. 27.🛟 What should you do after handling food colour? (a) wipe them on walls (b) rub your eyes (c) lick your fingers (d) wash your hands
28. 28.⚖️ 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) True (b) False
29. 29.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a mirror (c) a battery cell (d) a glass of water
30. 30.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) food colour (c) turmeric powder (d) a magnet
31. 31.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
32. 32.⚖️ 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
33. 33.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) not needed (b) needed
34. 34.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
35. 35.🔍 Which is the odd one out? (a) a paper towel (b) a cotton thread (c) a flower stem (d) a steel spoon
36. 36.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
37. 37.True or false: a paper towel does not let water climb. (a) False (b) True
38. 38.⚖️ 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 change it (c) we measure it
39. 39.🔍 Which is the odd one out? (a) a rubber eraser (b) a plastic ruler (c) a paper towel (d) a piece of foil
40. 40.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they stay white (b) they turn two colours (c) they all turn green (d) they fall off at once

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