Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 288 · 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: you tie a bag on a branch with no leaves. Will it collect much water? (a) much less water (b) exactly the same (c) it fills with soil (d) much more water
2. 2.🪴 Which of these is a job of the leaves? (a) make seeds (b) make food in sunlight (c) take in water from soil (d) hold up the leaves
3. 3.🔍 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
4. 4.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) vinegar (c) a rubber band (d) a battery cell
5. 5.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) a rubber band (c) vinegar (d) a few hours
6. 6.🧺 Do we need yeast for the leafy bag test? (a) needed (b) not needed
7. 7.🪴 Which part of a plant does this job: make seeds? (a) flower (b) leaves (c) stem (d) roots
8. 8.🪴 Which of these is a job of the flower? (a) make seeds (b) give out water vapour (c) make food in sunlight (d) hold up the leaves
9. 9.🛟 How should the plastic bag be tied around the branch? (a) gently, not too tight (b) with a hot glue gun (c) as tight as possible (d) with sharp wire
10. 10.True or false: hold up the leaves is a job of the flower. (a) True (b) False
11. 11.⚖️ 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
12. 12.🛟 Why must a plastic bag never go over anyone’s head? (a) it is too big (b) it changes colour (c) it gets wet (d) it can block breathing
13. 13.True or false: a rubber band is not needed for the leafy bag test. (a) False (b) True
14. 14.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) sunlight (c) vinegar (d) a rubber band
15. 15.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) sunlight (c) a potted plant (d) yeast
16. 16.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it grows faster (b) it wilts and droops (c) it turns blue (d) it flowers more
17. 17.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) the cool cloudy day (b) neither of them (c) the hot sunny day (d) both the same
18. 18.🪴 Which of these is a job of the roots? (a) make food in sunlight (b) carry water upward (c) hold the plant in soil (d) give out water vapour
19. 19.True or false: vinegar is needed for the leafy bag test. (a) True (b) False
20. 20.True or false: a clear plastic bag is needed for the leafy bag test. (a) True (b) False
21. 21.True or false: carry water upward is a job of the stem. (a) False (b) True
22. 22.🪴 Where did the water inside the bag come from? (a) the leaves (b) the plastic (c) the rubber band (d) the rain
23. 23.True or false: a battery cell is not needed for the leafy bag test. (a) False (b) True
24. 24.🧺 Which of these is not needed for the leafy bag test? (a) sunlight (b) a rubber band (c) a battery cell (d) a few hours
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 kind of plant”? (a) we measure it (b) we change it (c) we keep it the same
26. 26.📘 What do we call plants giving out water vapour from their leaves? (a) transpiration (b) reflection (c) digestion (d) germination
27. 27.🪴 Which of these is a job of the leaves? (a) carry water upward (b) hold the plant in soil (c) take in water from soil (d) give out water vapour
28. 28.⚖️ 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) False (b) True
29. 29.🧺 Do we need sunlight for the leafy bag test? (a) needed (b) not needed
30. 30.⚖️ 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 size of the plant (c) the same kind of bag (d) the kind of plant
31. 31.🪴 Which part of a plant does this job: hold up the leaves? (a) roots (b) leaves (c) flower (d) stem
32. 32.⚖️ 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 measure it (b) we change it (c) we keep it the same
33. 33.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the size of the plant is what we measure. (a) False (b) True
34. 34.🪴 Which of these is a job of the roots? (a) make seeds (b) make food in sunlight (c) hold up the leaves (d) take in water from soil
35. 35.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a magnet (c) a clear plastic bag (d) a few hours
36. 36.True or false: a potted plant is needed for the leafy bag test. (a) False (b) True
37. 37.🪴 Which part of a plant does this job: give out water vapour? (a) roots (b) stem (c) leaves (d) flower
38. 38.🧺 Which of these is needed for the leafy bag test? (a) vinegar (b) a battery cell (c) a magnet (d) sunlight
39. 39.⚖️ 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) amount of water drops (c) the size of the plant
40. 40.⚖️ 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 the one thing we change. (a) False (b) True

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