Transpiration Experiment Worksheet

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

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