Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 861 · 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 piece of chalk does not let water climb. (a) False (b) True
2. 2.True or false: a battery cell is not needed for the coloured flower experiment. (a) True (b) False
3. 3.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they fall off at once (b) they all turn green (c) they turn two colours (d) they stay white
4. 4.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) yeast (c) turmeric powder (d) a white flower
5. 5.True or false: a steel spoon does not let water climb. (a) True (b) False
6. 6.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) nothing ever happens (c) colour climbs up it (d) it turns to plastic
7. 7.⚖️ 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) True (b) False
8. 8.🧺 Do we need a magnet for the coloured flower experiment? (a) not needed (b) needed
9. 9.🧺 Do we need a mirror for the coloured flower experiment? (a) needed (b) not needed
10. 10.True or false: a steel spoon lets water climb up it. (a) False (b) True
11. 11.🔮 What would change if the flower stood in plain water? (a) the stem turns blue (b) the petals turn red (c) no colour change (d) the flower glows
12. 12.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? What do we do with “the kind of flower”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) a balloon (c) a battery cell (d) a mirror
14. 14.💧 Dip a sugar cube into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
15. 15.🔍 Which is the odd one out? (a) a piece of foil (b) a strip of cloth (c) a plastic ruler (d) a steel spoon
16. 16.⚖️ 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 change it (c) we keep it the same
17. 17.💧 Which of these lets water climb up it? (a) a rubber eraser (b) a paper towel (c) a steel spoon (d) a piece of foil
18. 18.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a mirror (c) food colour (d) a white flower
19. 19.True or false: a strip of cloth lets water climb up it. (a) True (b) False
20. 20.True or false: a cotton thread does not let water climb. (a) False (b) True
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) the kind of flower (b) time for colour to show (c) the length of the stem
22. 22.🧺 Which of these is needed for the coloured flower experiment? (a) a few hours of waiting (b) yeast (c) a balloon (d) a battery cell
23. 23.True or false: food colour is needed for the coloured flower experiment. (a) False (b) True
24. 24.⚖️ 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 kind of flower (b) time for colour to show (c) the amount of water (d) the amount of colour
25. 25.🔍 Which is the odd one out? (a) a flower stem (b) a paper towel (c) a rubber eraser (d) a strip of cloth
26. 26.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
27. 27.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a balloon (c) a white flower (d) food colour
28. 28.🛟 Who should trim the flower stem? (a) a toddler (b) a grown-up (c) a pet (d) anyone, without looking
29. 29.⚖️ 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
30. 30.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a cotton thread (c) a glass marble (d) a rubber eraser
31. 31.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a magnet (c) a balloon (d) a glass of water
32. 32.True or false: a piece of chalk lets water climb up it. (a) True (b) False
33. 33.💧 Dip a piece of chalk into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
34. 34.⚖️ 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 measure it (b) we change it (c) we keep it the same
35. 35.🧺 Which of these is not needed for the coloured flower experiment? (a) a battery cell (b) food colour (c) a white flower (d) a glass of water
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 what we measure. (a) False (b) True
37. 37.💧 Which of these does not let water climb? (a) a flower stem (b) a strip of cloth (c) a piece of chalk (d) a plastic ruler
38. 38.💧 Which of these does not let water climb? (a) a cotton thread (b) a paper towel (c) a piece of chalk (d) a glass marble
39. 39.🌼 How does coloured water reach the petals? (a) it rains on them (b) through tiny stem tubes (c) through the air (d) it is sprayed on
40. 40.True or false: a balloon is not needed for the coloured flower experiment. (a) False (b) True

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