Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 233 · 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? What do we do with “the kind of flower”? (a) we change it (b) we keep it the same (c) we measure it
2. 2.⚖️ 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 change it (c) we keep it the same
3. 3.📘 What is it called when water climbs up thin tubes or paper by itself? (a) evaporation (b) melting (c) magnetism (d) capillary action
4. 4.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
5. 5.🔮 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 fall off at once (d) they all turn green
6. 6.True or false: turmeric powder is not needed for the coloured flower experiment. (a) True (b) False
7. 7.🔍 Which is the odd one out? (a) a plastic ruler (b) a paper towel (c) a rubber eraser (d) a steel spoon
8. 8.⚖️ 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
9. 9.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
10. 10.🔍 Which is the odd one out? (a) a cotton thread (b) a glass marble (c) a steel spoon (d) a plastic ruler
11. 11.True or false: a strip of cloth lets water climb up it. (a) True (b) False
12. 12.💧 Which of these lets water climb up it? (a) a plastic ruler (b) a piece of foil (c) a glass marble (d) a sugar cube
13. 13.💧 Which of these does not let water climb? (a) a cotton thread (b) a glass marble (c) a strip of cloth (d) a sugar cube
14. 14.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) it sinks at once (b) it turns to plastic (c) colour climbs up it (d) nothing ever happens
15. 15.🌼 How does coloured water reach the petals? (a) it is sprayed on (b) through the air (c) it rains on them (d) through tiny stem tubes
16. 16.True or false: a flower stem does not let water climb. (a) False (b) True
17. 17.🔍 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 petals turn bluish (d) the water turns green
18. 18.💧 Which of these lets water climb up it? (a) a glass marble (b) a steel spoon (c) a rubber eraser (d) a cotton thread
19. 19.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a glass of water (d) a mirror
20. 20.🛟 What should you do after handling food colour? (a) lick your fingers (b) wipe them on walls (c) rub your eyes (d) wash your hands
21. 21.💧 Which of these does not let water climb? (a) a strip of cloth (b) a plastic ruler (c) a cotton thread (d) a paper towel
22. 22.⚖️ 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
23. 23.⚖️ 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
24. 24.🧺 Which of these is needed for the coloured flower experiment? (a) a battery cell (b) a balloon (c) a magnet (d) a few hours of waiting
25. 25.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a toddler (c) a grown-up (d) a pet
26. 26.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is kept the same. (a) True (b) False
27. 27.⚖️ 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) the room it stands in (c) the length of the stem (d) time for colour to show
28. 28.🔍 Which is the odd one out? (a) a rubber eraser (b) a steel spoon (c) a plastic ruler (d) a sugar cube
29. 29.🔮 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
30. 30.🧺 Which of these is needed for the coloured flower experiment? (a) turmeric powder (b) a battery cell (c) food colour (d) a balloon
31. 31.🧺 Which of these is not needed for the coloured flower experiment? (a) a few hours of waiting (b) food colour (c) a battery cell (d) a white flower
32. 32.🧺 Do we need turmeric powder for the coloured flower experiment? (a) needed (b) not needed
33. 33.⚖️ 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 room it stands in (c) the kind of flower (d) the length of the stem
34. 34.🔍 Which is the odd one out? (a) a sugar cube (b) a plastic ruler (c) a piece of chalk (d) a strip of cloth
35. 35.💧 Dip a glass marble into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
36. 36.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of colour is what we measure. (a) True (b) False
37. 37.True or false: a rubber eraser lets water climb up it. (a) True (b) False
38. 38.⚖️ 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 amount of water (c) the length of the stem
39. 39.⚖️ 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) True (b) False
40. 40.🧺 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) a few hours of waiting (d) a magnet

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