Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 844 · 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.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
2. 2.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a white flower (c) food colour (d) a balloon
3. 3.True or false: turmeric powder is needed for the coloured flower experiment. (a) True (b) False
4. 4.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
5. 5.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) a grown-up (d) anyone, without looking
6. 6.🛟 What should you do after handling food colour? (a) wash your hands (b) lick your fingers (c) rub your eyes (d) wipe them on walls
7. 7.💧 Which of these does not let water climb? (a) a glass marble (b) a sugar cube (c) a paper towel (d) a strip of cloth
8. 8.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
9. 9.🧺 Which of these is not needed for the coloured flower experiment? (a) a magnet (b) a white flower (c) food colour (d) a few hours of waiting
10. 10.🔍 Which is the odd one out? (a) a plastic ruler (b) a glass marble (c) a strip of cloth (d) a piece of foil
11. 11.🔮 What would change if the flower stood in plain water? (a) the petals turn red (b) the flower glows (c) the stem turns blue (d) no colour change
12. 12.True or false: a balloon is not needed for the coloured flower experiment. (a) True (b) False
13. 13.True or false: a magnet is needed for the coloured flower experiment. (a) False (b) True
14. 14.⚖️ 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) the length of the stem (c) the kind of flower (d) the amount of colour
15. 15.🔍 Which is the odd one out? (a) a piece of foil (b) a rubber eraser (c) a steel spoon (d) a flower stem
16. 16.⚖️ 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 kept the same. (a) True (b) False
17. 17.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a balloon (c) yeast (d) a few hours of waiting
18. 18.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
19. 19.🔍 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 water turns green (d) the petals turn bluish
20. 20.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a mirror (c) food colour (d) a white flower
21. 21.True or false: a glass of water is needed for the coloured flower experiment. (a) False (b) True
22. 22.⚖️ 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 keep it the same (c) we change it
23. 23.💧 Which of these does not let water climb? (a) a cotton thread (b) a piece of chalk (c) a strip of cloth (d) a piece of foil
24. 24.⚖️ 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) True (b) False
25. 25.True or false: a plastic ruler lets water climb up it. (a) True (b) False
26. 26.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a glass of water (c) turmeric powder (d) a white flower
27. 27.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) yeast (c) food colour (d) a balloon
28. 28.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
29. 29.True or false: food colour is needed for the coloured flower experiment. (a) True (b) False
30. 30.⚖️ 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 the one thing we change. (a) False (b) True
31. 31.⚖️ 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
32. 32.🌼 How does coloured water reach the petals? (a) through the air (b) through tiny stem tubes (c) it rains on them (d) it is sprayed on
33. 33.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
34. 34.True or false: a rubber eraser lets water climb up it. (a) False (b) True
35. 35.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a magnet (b) a white flower (c) food colour (d) a glass of water
36. 36.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
37. 37.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) capillary action (c) evaporation (d) melting
38. 38.💧 Which of these does not let water climb? (a) a steel spoon (b) a flower stem (c) a piece of chalk (d) a paper towel
39. 39.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) food colour (c) a glass of water (d) a battery cell
40. 40.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb

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