Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 155 · 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.📘 What do we call plants giving out water vapour from their leaves? (a) germination (b) digestion (c) transpiration (d) reflection
2. 2.🛟 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
3. 3.🪴 Which part of a plant does this job: carry water upward? (a) leaves (b) flower (c) stem (d) roots
4. 4.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) neither of them (b) the cool cloudy day (c) both the same (d) the hot sunny day
5. 5.⚖️ 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) the size of the plant (c) sun or shade
6. 6.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) yeast (c) a rubber band (d) a few hours
7. 7.⚖️ 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 measure it (c) we change it
8. 8.🪴 Which of these is a job of the roots? (a) hold the plant in soil (b) hold up the leaves (c) carry water upward (d) make food in sunlight
9. 9.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) stomata (b) roots (c) veins (d) petals
10. 10.True or false: yeast is not needed for the leafy bag test. (a) False (b) True
11. 11.True or false: turmeric powder is not needed for the leafy bag test. (a) False (b) True
12. 12.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) sunlight (c) a few hours (d) turmeric powder
13. 13.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a rubber band (c) turmeric powder (d) a potted plant
14. 14.⚖️ 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) sun or shade (b) the time we wait (c) the same kind of bag (d) the size of the plant
15. 15.🧺 Which of these is not needed for the leafy bag test? (a) a magnet (b) a potted plant (c) a clear plastic bag (d) sunlight
16. 16.🪴 Which of these is a job of the leaves? (a) hold up the leaves (b) make food in sunlight (c) take in water from soil (d) carry water upward
17. 17.🪴 Which part of a plant does this job: take in water from soil? (a) roots (b) leaves (c) flower (d) stem
18. 18.🪴 Which of these is a job of the leaves? (a) carry water upward (b) give out water vapour (c) hold up the leaves (d) take in water from soil
19. 19.🪴 Where did the water inside the bag come from? (a) the rubber band (b) the leaves (c) the rain (d) the plastic
20. 20.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a magnet (b) a clear plastic bag (c) a rubber band (d) sunlight
21. 21.⚖️ 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
22. 22.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a potted plant (c) a rubber band (d) vinegar
23. 23.True or false: hold up the leaves is a job of the flower. (a) False (b) True
24. 24.🔮 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
25. 25.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the time we wait”? (a) we change it (b) we measure it (c) we keep it the same
26. 26.⚖️ 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) amount of water drops (b) sun or shade (c) the time we wait (d) the kind of plant
27. 27.True or false: a battery cell is not needed for the leafy bag test. (a) False (b) True
28. 28.⚖️ 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 measure it (b) we change it (c) we keep it the same
29. 29.True or false: a rubber band is needed for the leafy bag test. (a) False (b) True
30. 30.⚖️ 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 keep it the same (c) we measure it
31. 31.🛟 How should the plastic bag be tied around the branch? (a) with sharp wire (b) gently, not too tight (c) with a hot glue gun (d) as tight as possible
32. 32.🪴 Which part of a plant does this job: make food in sunlight? (a) roots (b) flower (c) stem (d) leaves
33. 33.🧺 Do we need sunlight for the leafy bag test? (a) not needed (b) needed
34. 34.True or false: a few hours is not needed for the leafy bag test. (a) False (b) True
35. 35.🧺 Which of these is not needed for the leafy bag test? (a) vinegar (b) sunlight (c) a few hours (d) a rubber band
36. 36.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a mirror (b) a few hours (c) a potted plant (d) a clear plastic bag
37. 37.🧺 Do we need a rubber band for the leafy bag test? (a) needed (b) not needed
38. 38.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the kind of plant is kept the same. (a) True (b) False
39. 39.🧺 Do we need a mirror for the leafy bag test? (a) not needed (b) needed
40. 40.🧺 Which of these is needed for the leafy bag test? (a) a rubber band (b) a mirror (c) vinegar (d) a magnet

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