Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 687 · 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.📘 What is it called when water climbs up thin tubes or paper by itself? (a) melting (b) evaporation (c) capillary action (d) magnetism
2. 2.🧺 Which of these is not needed for the coloured flower experiment? (a) a white flower (b) a few hours of waiting (c) food colour (d) yeast
3. 3.💧 Dip a paper towel into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
4. 4.🔮 Predict: a strip of paper towel dips into coloured water. What happens? (a) colour climbs up it (b) nothing ever happens (c) it turns to plastic (d) it sinks at once
5. 5.True or false: a battery cell is needed for the coloured flower experiment. (a) True (b) False
6. 6.🧺 Do we need a balloon for the coloured flower experiment? (a) needed (b) not needed
7. 7.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a balloon (d) a glass of water
8. 8.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they all turn green (b) they fall off at once (c) they turn two colours (d) they stay white
9. 9.🧺 Which of these is needed for the coloured flower experiment? (a) food colour (b) turmeric powder (c) a balloon (d) a magnet
10. 10.🛟 What should you do after handling food colour? (a) lick your fingers (b) rub your eyes (c) wipe them on walls (d) wash your hands
11. 11.🔍 Which is the odd one out? (a) a steel spoon (b) a flower stem (c) a piece of foil (d) a glass marble
12. 12.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a magnet (c) a glass of water (d) a white flower
13. 13.True or false: a cotton thread does not let water climb. (a) False (b) True
14. 14.💧 Which of these does not let water climb? (a) a paper towel (b) a plastic ruler (c) a piece of chalk (d) a cotton thread
15. 15.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the kind of flower is the one thing we change. (a) True (b) False
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 keep it the same (c) we change it
17. 17.⚖️ 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
18. 18.⚖️ 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 keep it the same (b) we change it (c) we measure it
19. 19.🧺 Do we need a battery cell for the coloured flower experiment? (a) not needed (b) needed
20. 20.🌼 How does coloured water reach the petals? (a) it rains on them (b) through tiny stem tubes (c) it is sprayed on (d) through the air
21. 21.🛟 Who should trim the flower stem? (a) anyone, without looking (b) a grown-up (c) a pet (d) a toddler
22. 22.True or false: a few hours of waiting is not needed for the coloured flower experiment. (a) False (b) True
23. 23.⚖️ 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 what we measure. (a) True (b) False
24. 24.🧺 Which of these is not needed for the coloured flower experiment? (a) food colour (b) a white flower (c) a mirror (d) a glass of water
25. 25.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
26. 26.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) a white flower (c) food colour (d) a few hours of waiting
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) time for colour to show (b) the length of the stem (c) the amount of colour (d) the amount of water
28. 28.True or false: a paper towel lets water climb up it. (a) False (b) True
29. 29.🧺 Do we need a white flower for the coloured flower experiment? (a) not needed (b) needed
30. 30.🔍 Which is the odd one out? (a) a rubber eraser (b) a piece of chalk (c) a paper towel (d) a cotton thread
31. 31.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
32. 32.True or false: a glass of water is not needed for the coloured flower experiment. (a) False (b) True
33. 33.⚖️ 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
34. 34.🧺 Which of these is needed for the coloured flower experiment? (a) a magnet (b) a glass of water (c) a balloon (d) yeast
35. 35.🧺 Which of these is needed for the coloured flower experiment? (a) a white flower (b) a mirror (c) yeast (d) turmeric powder
36. 36.🧺 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) a battery cell
37. 37.🔍 What do you see a day after a white flower stands in blue water? (a) the petals turn bluish (b) the water turns green (c) the stem turns to ice (d) the flower floats away
38. 38.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a glass of water (b) yeast (c) a few hours of waiting (d) a white flower
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 what we measure. (a) True (b) False
40. 40.💧 Dip a piece of foil into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb

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