Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 55 · 40 questions

What you do (Roots in, leaves out): 1. Water the potted plant well. 2. Slip a clear plastic bag over a leafy branch. 3. Close it gently with a rubber band — not too tight. 4. Leave it in the sun for a few hours, then look for drops.

1. 1.🛟 Why must a plastic bag never go over anyone’s head? (a) it gets wet (b) it can block breathing (c) it changes colour (d) it is too big
2. 2.🪴 Which of these is a job of the roots? (a) make food in sunlight (b) take in water from soil (c) make seeds (d) give out water vapour
3. 3.🪴 Which of these is a job of the roots? (a) hold the plant in soil (b) make seeds (c) make food in sunlight (d) carry water upward
4. 4.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is kept the same? (a) amount of water drops (b) sun or shade (c) the kind of plant
5. 5.🪴 Which of these is a job of the leaves? (a) hold the plant in soil (b) carry water upward (c) give out water vapour (d) hold up the leaves
6. 6.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much more water (b) it fills with soil (c) exactly the same (d) much less water
7. 7.True or false: take in water from soil is a job of the leaves. (a) False (b) True
8. 8.True or false: a potted plant is not needed for the leafy bag test. (a) False (b) True
9. 9.🪴 Which part of a plant does this job: take in water from soil? (a) roots (b) flower (c) leaves (d) stem
10. 10.🛟 How should the plastic bag be tied around the branch? (a) as tight as possible (b) gently, not too tight (c) with a hot glue gun (d) with sharp wire
11. 11.🧺 Do we need a clear plastic bag for the leafy bag test? (a) needed (b) not needed
12. 12.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the same kind of bag”? (a) we change it (b) we measure it (c) we keep it the same
13. 13.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) a few hours (c) a potted plant (d) vinegar
14. 14.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the size of the plant”? (a) we keep it the same (b) we change it (c) we measure it
15. 15.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it grows faster (b) it flowers more (c) it wilts and droops (d) it turns blue
16. 16.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) both the same (b) neither of them (c) the hot sunny day (d) the cool cloudy day
17. 17.🪴 Which of these is a job of the leaves? (a) carry water upward (b) make food in sunlight (c) hold up the leaves (d) make seeds
18. 18.True or false: a rubber band is not needed for the leafy bag test. (a) False (b) True
19. 19.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) a rubber band (c) a battery cell (d) a magnet
20. 20.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny water drops (b) salt crystals (c) nothing at all (d) tiny insects
21. 21.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the time we wait is kept the same. (a) True (b) False
22. 22.🧺 Which of these is needed for the leafy bag test? (a) yeast (b) a few hours (c) a battery cell (d) turmeric powder
23. 23.🧺 Do we need turmeric powder for the leafy bag test? (a) not needed (b) needed
24. 24.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the size of the plant is what we measure. (a) False (b) True
25. 25.🪴 Which part of a plant does this job: hold up the leaves? (a) leaves (b) flower (c) roots (d) stem
26. 26.🪴 Which part of a plant does this job: carry water upward? (a) stem (b) leaves (c) roots (d) flower
27. 27.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is what we measure? (a) the size of the plant (b) the time we wait (c) the kind of plant (d) amount of water drops
28. 28.True or false: hold the plant in soil is a job of the leaves. (a) False (b) True
29. 29.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the kind of plant”? (a) we change it (b) we keep it the same (c) we measure it
30. 30.True or false: carry water upward is a job of the leaves. (a) False (b) True
31. 31.🧺 Do we need a rubber band for the leafy bag test? (a) needed (b) not needed
32. 32.🧺 Do we need yeast for the leafy bag test? (a) not needed (b) needed
33. 33.True or false: a clear plastic bag is not needed for the leafy bag test. (a) False (b) True
34. 34.🪴 Which of these is a job of the flower? (a) make food in sunlight (b) give out water vapour (c) hold the plant in soil (d) make seeds
35. 35.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: sun or shade is kept the same. (a) True (b) False
36. 36.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) yeast (c) a clear plastic bag (d) a battery cell
37. 37.🪴 Which part of a plant does this job: give out water vapour? (a) stem (b) leaves (c) flower (d) roots
38. 38.🧺 Do we need a battery cell for the leafy bag test? (a) needed (b) not needed
39. 39.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) a battery cell (c) vinegar (d) a potted plant
40. 40.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “sun or shade”? (a) we keep it the same (b) we change it (c) we measure it

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