Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 386 · 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? Which of these is the one thing we change? (a) time for colour to show (b) the length of the stem (c) the amount of water (d) the kind of flower
2. 2.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a battery cell (b) a white flower (c) a few hours of waiting (d) a glass of water
4. 4.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) melting (c) capillary action (d) evaporation
5. 5.⚖️ 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
6. 6.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
7. 7.⚖️ 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 change it (b) we keep it the same (c) we measure it
8. 8.🧺 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) a mirror
9. 9.True or false: a paper towel does not let water climb. (a) True (b) False
10. 10.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a magnet (c) food colour (d) turmeric powder
11. 11.⚖️ 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 measure it (c) we change it
12. 12.True or false: a rubber eraser lets water climb up it. (a) False (b) True
13. 13.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
14. 14.⚖️ 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) the length of the stem (c) time for colour to show
15. 15.True or false: a piece of foil lets water climb up it. (a) True (b) False
16. 16.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a balloon (d) a white flower
17. 17.🔍 Which is the odd one out? (a) a paper towel (b) a steel spoon (c) a flower stem (d) a sugar cube
18. 18.True or false: a flower stem does not let water climb. (a) False (b) True
19. 19.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a magnet (c) a white flower (d) a few hours of waiting
20. 20.⚖️ 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 measure it (b) we change it (c) we keep it the same
21. 21.🔍 Which is the odd one out? (a) a sugar cube (b) a paper towel (c) a piece of foil (d) a flower stem
22. 22.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
23. 23.🔍 Which is the odd one out? (a) a strip of cloth (b) a piece of foil (c) a plastic ruler (d) a glass marble
24. 24.⚖️ 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
25. 25.🔍 Which is the odd one out? (a) a cotton thread (b) a glass marble (c) a strip of cloth (d) a flower stem
26. 26.💧 Which of these lets water climb up it? (a) a steel spoon (b) a paper towel (c) a glass marble (d) a plastic ruler
27. 27.True or false: a balloon is not needed for the coloured flower experiment. (a) True (b) False
28. 28.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a glass of water (c) turmeric powder (d) a mirror
29. 29.🔍 Which is the odd one out? (a) a piece of foil (b) a rubber eraser (c) a cotton thread (d) a steel spoon
30. 30.🔮 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 all turn green (c) they turn two colours (d) they fall off at once
31. 31.True or false: a glass of water 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? What do we do with “the amount of water”? (a) we keep it the same (b) we change it (c) we measure it
33. 33.🛟 What should you do after handling food colour? (a) wipe them on walls (b) lick your fingers (c) rub your eyes (d) wash your hands
34. 34.💧 Which of these lets water climb up it? (a) a flower stem (b) a rubber eraser (c) a plastic ruler (d) a glass marble
35. 35.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is the one thing we change. (a) False (b) True
36. 36.⚖️ 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) False (b) True
37. 37.💧 Dip a cotton thread into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
38. 38.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
39. 39.True or false: a mirror is not needed for the coloured flower experiment. (a) False (b) True
40. 40.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a pet (d) a grown-up

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