Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 355 · 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.🧺 Do we need a magnet for the coloured flower experiment? (a) needed (b) not needed
2. 2.⚖️ 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 what we measure. (a) True (b) False
3. 3.🔍 What do you see a day after a white flower stands in blue water? (a) the water turns green (b) the stem turns to ice (c) the flower floats away (d) the petals turn bluish
4. 4.🧺 Do we need a few hours of waiting for the coloured flower experiment? (a) needed (b) not needed
5. 5.⚖️ 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 water (b) the length of the stem (c) the room it stands in (d) time for colour to show
6. 6.🧺 Which of these is needed for the coloured flower experiment? (a) a balloon (b) a battery cell (c) a mirror (d) a glass of water
7. 7.⚖️ 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 room it stands in
8. 8.💧 Which of these lets water climb up it? (a) a piece of foil (b) a steel spoon (c) a plastic ruler (d) a cotton thread
9. 9.🧺 Do we need yeast for the coloured flower experiment? (a) needed (b) not needed
10. 10.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) yeast (b) a glass of water (c) food colour (d) a few hours of waiting
11. 11.⚖️ 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
12. 12.⚖️ 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
13. 13.💧 Dip a flower stem into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
14. 14.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
15. 15.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a few hours of waiting (c) a magnet (d) a glass of water
16. 16.⚖️ 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 measure it (b) we change it (c) we keep it the same
17. 17.🔮 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 all turn green (d) they fall off at once
18. 18.🔮 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
19. 19.🛟 What should you do after handling food colour? (a) lick your fingers (b) wash your hands (c) rub your eyes (d) wipe them on walls
20. 20.⚖️ 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
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 length of the stem (b) time for colour to show (c) the amount of colour
22. 22.⚖️ 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 length of the stem (d) time for colour to show
23. 23.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) nothing ever happens (b) colour climbs up it (c) it turns to plastic (d) it sinks at once
24. 24.💧 Dip a strip of cloth into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
25. 25.⚖️ 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 keep it the same (b) we measure it (c) we change it
26. 26.🛟 Who should trim the flower stem? (a) a pet (b) anyone, without looking (c) a toddler (d) a grown-up
27. 27.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
28. 28.💧 Which of these lets water climb up it? (a) a glass marble (b) a rubber eraser (c) a steel spoon (d) a strip of cloth
29. 29.💧 Which of these does not let water climb? (a) a cotton thread (b) a paper towel (c) a plastic ruler (d) a strip of cloth
30. 30.True or false: a rubber eraser lets water climb up it. (a) True (b) False
31. 31.True or false: a sugar cube lets water climb up it. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) a piece of foil (b) a glass marble (c) a paper towel (d) a steel spoon
33. 33.🌼 How does coloured water reach the petals? (a) it rains on them (b) it is sprayed on (c) through tiny stem tubes (d) through the air
34. 34.True or false: a paper towel lets water climb up it. (a) True (b) False
35. 35.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) a magnet (c) a battery cell (d) turmeric powder
36. 36.🔍 Which is the odd one out? (a) a rubber eraser (b) a flower stem (c) a steel spoon (d) a plastic ruler
37. 37.⚖️ 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 what we measure. (a) True (b) False
38. 38.🔍 Which is the odd one out? (a) a sugar cube (b) a strip of cloth (c) a cotton thread (d) a steel spoon
39. 39.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a battery cell (d) a few hours of waiting
40. 40.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a piece of foil (c) a glass marble (d) a piece of chalk

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