Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 982 · 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.⚖️ 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
2. 2.🛟 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
3. 3.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
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 turn two colours (b) they all turn green (c) they stay white (d) they fall off at once
5. 5.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
6. 6.🔍 Which is the odd one out? (a) a paper towel (b) a piece of foil (c) a glass marble (d) a plastic ruler
7. 7.🌼 Why do the petals keep pulling water up the stem? (a) petals lose water to air (b) the stem is hot (c) petals like colour (d) petals are magnetic
8. 8.🧺 Which of these is needed for the coloured flower experiment? (a) a few hours of waiting (b) turmeric powder (c) a magnet (d) a mirror
9. 9.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
10. 10.True or false: a plastic ruler does not let water climb. (a) False (b) True
11. 11.⚖️ 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) time for colour to show (c) the kind of flower (d) the amount of water
12. 12.🔍 Which is the odd one out? (a) a rubber eraser (b) a piece of foil (c) a strip of cloth (d) a glass marble
13. 13.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) food colour (c) a white flower (d) a balloon
14. 14.🧺 Which of these is needed for the coloured flower experiment? (a) yeast (b) a magnet (c) turmeric powder (d) food colour
15. 15.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
16. 16.🛟 Who should trim the flower stem? (a) a pet (b) a toddler (c) anyone, without looking (d) a grown-up
17. 17.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) food colour (c) a white flower (d) a glass of water
18. 18.💧 Which of these lets water climb up it? (a) a sugar cube (b) a glass marble (c) a piece of foil (d) a plastic ruler
19. 19.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it turns to plastic (b) colour climbs up it (c) nothing ever happens (d) it sinks at once
20. 20.⚖️ 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 length of the stem (b) time for colour to show (c) the amount of water (d) the kind of flower
21. 21.⚖️ 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
22. 22.💧 Which of these lets water climb up it? (a) a glass marble (b) a steel spoon (c) a piece of chalk (d) a plastic ruler
23. 23.True or false: a glass marble does not let water climb. (a) True (b) False
24. 24.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
25. 25.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
26. 26.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a few hours of waiting (c) yeast (d) food colour
27. 27.⚖️ 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 keep it the same (b) we change it (c) we measure it
28. 28.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
29. 29.⚖️ 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 what we measure. (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: time for colour to show is what we measure. (a) False (b) True
31. 31.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
32. 32.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
33. 33.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) a battery cell (c) turmeric powder (d) a balloon
34. 34.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
35. 35.⚖️ 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
36. 36.⚖️ 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 kept the same. (a) True (b) False
37. 37.True or false: a paper towel lets water climb up it. (a) True (b) False
38. 38.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) True (b) False
39. 39.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a glass of water (d) a balloon
40. 40.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) food colour (c) turmeric powder (d) a white flower

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