Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 291 · 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.🪴 Which part of a plant does this job: give out water vapour? (a) leaves (b) roots (c) flower (d) stem
2. 2.🪴 Which of these is a job of the flower? (a) take in water from soil (b) make food in sunlight (c) make seeds (d) give out water vapour
3. 3.🪴 Which of these is a job of the leaves? (a) take in water from soil (b) carry water upward (c) make food in sunlight (d) hold up the leaves
4. 4.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) it fills with soil (b) exactly the same (c) much less water (d) much more water
5. 5.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it turns blue (b) it flowers more (c) it wilts and droops (d) it grows faster
6. 6.⚖️ 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 keep it the same (b) we measure it (c) we change it
7. 7.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) salt crystals (b) nothing at all (c) tiny insects (d) tiny water drops
8. 8.🪴 Which part of a plant does this job: make seeds? (a) leaves (b) roots (c) stem (d) flower
9. 9.🧺 Which of these is not needed for the leafy bag test? (a) a rubber band (b) yeast (c) a clear plastic bag (d) a potted plant
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) sun or shade (b) amount of water drops (c) the size of the plant (d) the time we wait
11. 11.⚖️ 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 keep it the same (b) we change it (c) we measure it
12. 12.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) a battery cell (c) a rubber band (d) a few hours
13. 13.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) the hot sunny day (b) neither of them (c) the cool cloudy day (d) both the same
14. 14.⚖️ 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 measure it (c) we change it
15. 15.⚖️ 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) False (b) True
16. 16.📘 What do we call plants giving out water vapour from their leaves? (a) reflection (b) digestion (c) transpiration (d) germination
17. 17.True or false: a clear plastic bag is needed for the leafy bag test. (a) True (b) False
18. 18.True or false: sunlight is not needed for the leafy bag test. (a) True (b) False
19. 19.🛟 How should the plastic bag be tied around the branch? (a) as tight as possible (b) with sharp wire (c) gently, not too tight (d) with a hot glue gun
20. 20.🧺 Which of these is not needed for the leafy bag test? (a) a few hours (b) sunlight (c) vinegar (d) a potted plant
21. 21.True or false: hold up the leaves is a job of the stem. (a) True (b) False
22. 22.⚖️ 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 kept the same. (a) True (b) False
23. 23.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) turmeric powder (c) a potted plant (d) a magnet
24. 24.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a few hours (c) a potted plant (d) yeast
25. 25.🛟 Why must a plastic bag never go over anyone’s head? (a) it changes colour (b) it can block breathing (c) it is too big (d) it gets wet
26. 26.🧺 Do we need yeast for the leafy bag test? (a) not needed (b) needed
27. 27.🪴 Which of these is a job of the stem? (a) make food in sunlight (b) give out water vapour (c) hold the plant in soil (d) carry water upward
28. 28.🪴 Which of these is a job of the stem? (a) hold the plant in soil (b) make food in sunlight (c) take in water from soil (d) hold up the leaves
29. 29.True or false: sunlight is needed for the leafy bag test. (a) False (b) True
30. 30.True or false: a potted plant is needed for the leafy bag test. (a) True (b) False
31. 31.🧺 Which of these is needed for the leafy bag test? (a) sunlight (b) turmeric powder (c) vinegar (d) a magnet
32. 32.🧺 Which of these is not needed for the leafy bag test? (a) a few hours (b) sunlight (c) a potted plant (d) turmeric powder
33. 33.🧺 Which of these is needed for the leafy bag test? (a) vinegar (b) a rubber band (c) a battery cell (d) yeast
34. 34.🧺 Do we need a potted plant for the leafy bag test? (a) not needed (b) needed
35. 35.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a rubber band (c) a magnet (d) a few hours
36. 36.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) a few hours (c) turmeric powder (d) yeast
37. 37.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) sunlight (c) a potted plant (d) turmeric powder
38. 38.True or false: a few hours is not needed for the leafy bag test. (a) True (b) False
39. 39.🧺 Do we need a few hours for the leafy bag test? (a) needed (b) not needed
40. 40.🪴 Which of these is a job of the roots? (a) make seeds (b) make food in sunlight (c) hold up the leaves (d) hold the plant in soil

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