Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 184 · 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 sugar cube does not let water climb. (a) True (b) False
2. 2.True or false: a piece of foil lets water climb up it. (a) True (b) False
3. 3.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a balloon (c) a mirror (d) food colour
4. 4.True or false: a magnet is needed for the coloured flower experiment. (a) True (b) False
5. 5.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a pet (c) a grown-up (d) a toddler
6. 6.⚖️ 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
7. 7.⚖️ 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
8. 8.⚖️ 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 keep it the same (c) we change it
9. 9.🛟 What should you do after handling food colour? (a) rub your eyes (b) wipe them on walls (c) wash your hands (d) lick your fingers
10. 10.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
11. 11.🧺 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) yeast
12. 12.🔍 Which is the odd one out? (a) a paper towel (b) a plastic ruler (c) a cotton thread (d) a sugar cube
13. 13.⚖️ 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) False (b) True
14. 14.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
15. 15.⚖️ 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 length of the stem (b) time for colour to show (c) the amount of water
16. 16.🔮 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 fall off at once (d) they all turn green
17. 17.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) a few hours of waiting (c) a magnet (d) food colour
18. 18.True or false: yeast is not needed for the coloured flower experiment. (a) False (b) True
19. 19.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) food colour (c) a white flower (d) a magnet
20. 20.⚖️ 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 room it stands in (b) time for colour to show (c) the length of the stem
21. 21.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a white flower (c) a battery cell (d) a glass of water
22. 22.⚖️ 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
23. 23.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
24. 24.⚖️ 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) False (b) True
25. 25.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
26. 26.🔮 What would change if the flower stood in plain water? (a) the flower glows (b) the stem turns blue (c) the petals turn red (d) no colour change
27. 27.💧 Which of these does not let water climb? (a) a flower stem (b) a steel spoon (c) a sugar cube (d) a paper towel
28. 28.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
29. 29.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) it sinks at once (c) nothing ever happens (d) it turns to plastic
30. 30.⚖️ 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
31. 31.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
32. 32.⚖️ 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 colour (b) the length of the stem (c) the kind of flower (d) the room it stands in
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.🔍 Which is the odd one out? (a) a glass marble (b) a plastic ruler (c) a piece of foil (d) a flower stem
35. 35.💧 Which of these does not let water climb? (a) a cotton thread (b) a piece of chalk (c) a rubber eraser (d) a flower stem
36. 36.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
37. 37.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a balloon (c) a magnet (d) a glass of water
38. 38.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) a few hours of waiting (c) a balloon (d) turmeric powder
39. 39.True or false: a magnet is not needed for the coloured flower experiment. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) a steel spoon (b) a rubber eraser (c) a piece of chalk (d) a plastic ruler

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