Transpiration Experiment Worksheet

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

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