Capillary Action Flower Experiment Worksheet

Science experiments lesson 4: Colour-changing flower: capillary action · Set 284 · 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? Which of these is what we measure? (a) the kind of flower (b) the amount of colour (c) time for colour to show (d) the room it stands in
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 kept the same. (a) True (b) False
3. 3.🔍 What do you see a day after a white flower stands in blue water? (a) the flower floats away (b) the water turns green (c) the stem turns to ice (d) the petals turn bluish
4. 4.🛟 Who should trim the flower stem? (a) a toddler (b) a pet (c) a grown-up (d) anyone, without looking
5. 5.💧 Which of these lets water climb up it? (a) a piece of chalk (b) a glass marble (c) a piece of foil (d) a plastic ruler
6. 6.⚖️ 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 keep it the same (b) we change it (c) we measure it
7. 7.🛟 What should you do after handling food colour? (a) rub your eyes (b) lick your fingers (c) wipe them on walls (d) wash your hands
8. 8.💧 Which of these does not let water climb? (a) a strip of cloth (b) a sugar cube (c) a plastic ruler (d) a paper towel
9. 9.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) food colour (b) a white flower (c) a few hours of waiting (d) a balloon
10. 10.🧺 Do we need a battery cell for the coloured flower experiment? (a) needed (b) not needed
11. 11.🧺 Do we need a balloon 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) a white flower (b) a battery cell (c) food colour (d) a glass of water
13. 13.⚖️ 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
14. 14.⚖️ 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
15. 15.💧 Dip a steel spoon into coloured water. Does the water climb up it? (a) water climbs up it (b) water does not climb
16. 16.🧺 Which of these is not needed for the coloured flower experiment? (a) a glass of water (b) a few hours of waiting (c) yeast (d) a white flower
17. 17.⚖️ 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
18. 18.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a few hours of waiting (b) food colour (c) a white flower (d) a magnet
19. 19.True or false: yeast is not needed for the coloured flower experiment. (a) True (b) False
20. 20.💧 Which of these does not let water climb? (a) a piece of chalk (b) a paper towel (c) a piece of foil (d) a sugar cube
21. 21.True or false: a paper towel does not let water climb. (a) True (b) False
22. 22.📘 What is it called when water climbs up thin tubes or paper by itself? (a) magnetism (b) evaporation (c) capillary action (d) melting
23. 23.🧺 Which of these is not needed for the coloured flower experiment? (a) a battery cell (b) a white flower (c) food colour (d) a few hours of waiting
24. 24.🧺 Do we need a mirror for the coloured flower experiment? (a) not needed (b) needed
25. 25.🔮 Predict: a stem is split in two, one half in red water and one in blue. What do the petals do? (a) they turn two colours (b) they fall off at once (c) they stay white (d) they all turn green
26. 26.⚖️ 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 length of the stem (b) the kind of flower (c) time for colour to show (d) the room it stands in
27. 27.💧 Which of these lets water climb up it? (a) a strip of cloth (b) a piece of foil (c) a plastic ruler (d) a rubber eraser
28. 28.True or false: a magnet is not needed for the coloured flower experiment. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) a steel spoon (b) a plastic ruler (c) a strip of cloth (d) a glass marble
30. 30.🔍 Which is the odd one out? (a) a cotton thread (b) a steel spoon (c) a piece of foil (d) a rubber eraser
31. 31.⚖️ 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
32. 32.🧺 Do we need a glass of water for the coloured flower experiment? (a) not needed (b) needed
33. 33.🧺 Three of these are needed for the coloured flower experiment. Which one is NOT needed? (a) a mirror (b) a few hours of waiting (c) food colour (d) a white flower
34. 34.True or false: a steel spoon does not let water climb. (a) True (b) False
35. 35.⚖️ Fair test — does colour reach the petals faster with a short stem or a long stem? True or false: the amount of water is what we measure. (a) True (b) False
36. 36.🧺 Do we need yeast for the coloured flower experiment? (a) not needed (b) needed
37. 37.🔍 Which is the odd one out? (a) a piece of chalk (b) a paper towel (c) a sugar cube (d) a glass marble
38. 38.💧 Dip a plastic ruler into coloured water. Does the water climb up it? (a) water does not climb (b) water climbs up it
39. 39.True or false: a paper towel lets water climb up it. (a) True (b) False
40. 40.True or false: yeast is needed for the coloured flower experiment. (a) False (b) True

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