Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 3 · 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.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) both the same (b) the hot sunny day (c) neither of them (d) the cool cloudy day
2. 2.🪴 Which of these is a job of the flower? (a) hold up the leaves (b) make seeds (c) make food in sunlight (d) carry water upward
3. 3.🪴 Which part of a plant does this job: make food in sunlight? (a) stem (b) leaves (c) flower (d) roots
4. 4.True or false: give out water vapour is a job of the roots. (a) True (b) False
5. 5.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) yeast (c) a clear plastic bag (d) a magnet
6. 6.🛟 Why must a plastic bag never go over anyone’s head? (a) it can block breathing (b) it changes colour (c) it gets wet (d) it is too big
7. 7.🔮 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 more water (d) much less water
8. 8.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it grows faster (b) it turns blue (c) it wilts and droops (d) it flowers more
9. 9.🧺 Do we need vinegar for the leafy bag test? (a) not needed (b) needed
10. 10.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) a magnet (c) a clear plastic bag (d) a rubber band
11. 11.🪴 Through which part does a plant take in water from the soil? (a) the roots (b) the fruits (c) the leaves (d) the flowers
12. 12.⚖️ 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 kind of plant (b) the time we wait (c) amount of water drops (d) the size of the plant
13. 13.⚖️ 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 size of the plant (b) the kind of plant (c) the time we wait (d) sun or shade
14. 14.🪴 Which part of a plant does this job: carry water upward? (a) flower (b) leaves (c) stem (d) roots
15. 15.True or false: yeast is needed for the leafy bag test. (a) False (b) True
16. 16.🛟 How should the plastic bag be tied around the branch? (a) with a hot glue gun (b) as tight as possible (c) with sharp wire (d) gently, not too tight
17. 17.⚖️ 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
18. 18.🧺 Which of these is needed for the leafy bag test? (a) a battery cell (b) yeast (c) a few hours (d) a mirror
19. 19.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) a mirror (c) a clear plastic bag (d) a potted plant
20. 20.True or false: give out water vapour is a job of the flower. (a) False (b) True
21. 21.🪴 Which of these is a job of the roots? (a) hold the plant in soil (b) give out water vapour (c) hold up the leaves (d) carry water upward
22. 22.🧺 Do we need sunlight for the leafy bag test? (a) not needed (b) needed
23. 23.🧺 Do we need yeast for the leafy bag test? (a) not needed (b) needed
24. 24.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) a clear plastic bag (c) a few hours (d) a battery cell
25. 25.⚖️ 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) True (b) False
26. 26.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a battery cell (b) a few hours (c) sunlight (d) a clear plastic bag
27. 27.🪴 Which of these is a job of the leaves? (a) make seeds (b) hold up the leaves (c) take in water from soil (d) make food in sunlight
28. 28.⚖️ 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 what we measure. (a) False (b) True
29. 29.📘 What do we call plants giving out water vapour from their leaves? (a) transpiration (b) germination (c) digestion (d) reflection
30. 30.🪴 Which of these is a job of the stem? (a) make seeds (b) give out water vapour (c) take in water from soil (d) carry water upward
31. 31.⚖️ 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 kind of plant (c) amount of water drops
32. 32.⚖️ 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
33. 33.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a potted plant (c) a rubber band (d) a magnet
34. 34.⚖️ 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
35. 35.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) a rubber band (c) vinegar (d) a clear plastic bag
36. 36.⚖️ 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
37. 37.🪴 Which of these is a job of the leaves? (a) make seeds (b) carry water upward (c) give out water vapour (d) take in water from soil
38. 38.True or false: a magnet is not needed for the leafy bag test. (a) True (b) False
39. 39.True or false: take in water from soil is a job of the flower. (a) False (b) True
40. 40.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) a few hours (c) turmeric powder (d) a rubber band

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