Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 969 · 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.🧺 Which of these is needed for the coloured flower experiment? (a) a mirror (b) yeast (c) a white flower (d) a balloon
2. 2.🔍 Which is the odd one out? (a) a paper towel (b) a flower stem (c) a piece of foil (d) a cotton thread
3. 3.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) a balloon (c) a few hours of waiting (d) a white flower
4. 4.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) yeast (c) food colour (d) a mirror
5. 5.🔍 Which is the odd one out? (a) a sugar cube (b) a flower stem (c) a plastic ruler (d) a piece of chalk
6. 6.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) a glass of water (c) food colour (d) a magnet
7. 7.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the flower glows (c) the petals turn red (d) the stem turns blue
8. 8.⚖️ 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
9. 9.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) a battery cell (c) a white flower (d) a glass of water
10. 10.📘 What is it called when water climbs up thin tubes or paper by itself? (a) capillary action (b) evaporation (c) magnetism (d) melting
11. 11.🧺 Do we need a white flower for the coloured flower experiment? (a) needed (b) not needed
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a magnet (d) a glass of water
13. 13.⚖️ 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 amount of water
14. 14.⚖️ 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
15. 15.True or false: a balloon is needed for the coloured flower experiment. (a) False (b) True
16. 16.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a glass of water (c) a few hours of waiting (d) turmeric powder
17. 17.⚖️ 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 kind of flower
18. 18.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
19. 19.⚖️ 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 room it stands in (d) the amount of water
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 amount of water (b) the kind of flower (c) the room it stands in (d) time for colour to show
21. 21.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
22. 22.💧 Which of these does not let water climb? (a) a plastic ruler (b) a flower stem (c) a piece of chalk (d) a sugar cube
23. 23.💧 Which of these lets water climb up it? (a) a sugar cube (b) a piece of foil (c) a glass marble (d) a plastic ruler
24. 24.⚖️ 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
25. 25.🛟 Who should trim the flower stem? (a) a grown-up (b) anyone, without looking (c) a pet (d) a toddler
26. 26.⚖️ 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) the room it stands in (c) time for colour to show
27. 27.True or false: food colour is not needed for the coloured flower experiment. (a) True (b) False
28. 28.⚖️ 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
29. 29.💧 Which of these does not let water climb? (a) a sugar cube (b) a strip of cloth (c) a flower stem (d) a steel spoon
30. 30.💧 Which of these does not let water climb? (a) a sugar cube (b) a paper towel (c) a rubber eraser (d) a piece of chalk
31. 31.💧 Which of these lets water climb up it? (a) a flower stem (b) a steel spoon (c) a rubber eraser (d) a plastic ruler
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 measure it (b) we change it (c) we keep it the same
33. 33.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
34. 34.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
35. 35.True or false: a white flower is not needed for the coloured flower experiment. (a) True (b) False
36. 36.💧 Dip a rubber eraser into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
37. 37.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
38. 38.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
39. 39.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the stem turns to ice (c) the water turns green (d) the flower floats away
40. 40.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed

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