Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 709 · 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? True or false: the amount of colour is kept the same. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) a sugar cube (b) a cotton thread (c) a strip of cloth (d) a steel spoon
3. 3.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
4. 4.🧺 Do we need a balloon for the coloured flower experiment? (a) not needed (b) needed
5. 5.True or false: a plastic ruler lets water climb up it. (a) True (b) False
6. 6.⚖️ 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
7. 7.🔍 What do you see a day after a white flower stands in blue water? (a) the stem turns to ice (b) the flower floats away (c) the water turns green (d) the petals turn bluish
8. 8.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a glass of water (c) yeast (d) a magnet
9. 9.⚖️ 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 kind of flower (d) the amount of water
10. 10.🧺 Which of these is needed for the coloured flower experiment? (a) a few hours of waiting (b) a mirror (c) yeast (d) a battery cell
11. 11.💧 Which of these does not let water climb? (a) a strip of cloth (b) a rubber eraser (c) a piece of chalk (d) a paper towel
12. 12.True or false: a glass marble lets water climb up it. (a) True (b) False
13. 13.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a few hours of waiting (c) a white flower (d) yeast
14. 14.True or false: a battery cell is needed for the coloured flower experiment. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) a strip of cloth (b) a plastic ruler (c) a flower stem (d) a piece of chalk
16. 16.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
17. 17.🛟 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
18. 18.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
19. 19.💧 Which of these lets water climb up it? (a) a flower stem (b) a rubber eraser (c) a plastic ruler (d) a piece of foil
20. 20.🔮 What would change if the flower stood in plain water? (a) no colour change (b) the stem turns blue (c) the petals turn red (d) the flower glows
21. 21.⚖️ 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
22. 22.⚖️ 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
23. 23.True or false: a glass of water is not 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? What do we do with “the kind of flower”? (a) we change it (b) we keep it the same (c) we measure it
25. 25.⚖️ 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
26. 26.🧺 Do we need food colour for the coloured flower experiment? (a) needed (b) not needed
27. 27.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) colour climbs up it (c) it turns to plastic (d) nothing ever happens
28. 28.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
29. 29.True or false: a white flower is needed for the coloured flower experiment. (a) False (b) True
30. 30.🛟 Who should trim the flower stem? (a) a toddler (b) anyone, without looking (c) a grown-up (d) a pet
31. 31.🔍 Which is the odd one out? (a) a paper towel (b) a steel spoon (c) a glass marble (d) a plastic ruler
32. 32.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a white flower (c) a glass of water (d) a mirror
33. 33.🔍 Which is the odd one out? (a) a plastic ruler (b) a flower stem (c) a piece of foil (d) a rubber eraser
34. 34.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is the one thing we change. (a) True (b) False
35. 35.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through the air (c) through tiny stem tubes (d) it rains on them
36. 36.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a white flower (b) food colour (c) a mirror (d) a few hours of waiting
37. 37.⚖️ 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 amount of colour (c) the room it stands in (d) time for colour to show
38. 38.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a piece of foil (c) a cotton thread (d) a steel spoon
39. 39.⚖️ 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
40. 40.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is the one thing we change. (a) False (b) True

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