Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 35 · 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.🪴 Through which part does a plant take in water from the soil? (a) the fruits (b) the roots (c) the flowers (d) the leaves
2. 2.📘 What do we call plants giving out water vapour from their leaves? (a) germination (b) digestion (c) transpiration (d) reflection
3. 3.True or false: vinegar is needed for the leafy bag test. (a) False (b) True
4. 4.⚖️ 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
5. 5.🧺 Do we need a few hours for the leafy bag test? (a) needed (b) not needed
6. 6.🛟 Why must a plastic bag never go over anyone’s head? (a) it is too big (b) it changes colour (c) it can block breathing (d) it gets wet
7. 7.True or false: hold up the leaves is a job of the stem. (a) False (b) True
8. 8.🧺 Do we need vinegar for the leafy bag test? (a) needed (b) not needed
9. 9.🧺 Do we need a clear plastic bag for the leafy bag test? (a) needed (b) not needed
10. 10.🔮 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
11. 11.🔮 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) both the same (d) the hot sunny day
12. 12.⚖️ 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
13. 13.🪴 Which part of a plant does this job: take in water from soil? (a) leaves (b) flower (c) roots (d) stem
14. 14.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) a magnet (c) a rubber band (d) a few hours
15. 15.⚖️ 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
16. 16.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) a mirror (c) a few hours (d) a clear plastic bag
17. 17.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) a rubber band (c) a few hours (d) turmeric powder
18. 18.⚖️ 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 measure it (c) we keep it the same
19. 19.⚖️ 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 kind of plant (b) amount of water drops (c) sun or shade
20. 20.True or false: turmeric powder is not needed for the leafy bag test. (a) True (b) False
21. 21.🪴 Which of these is a job of the leaves? (a) take in water from soil (b) give out water vapour (c) hold up the leaves (d) make seeds
22. 22.🪴 Which of these is a job of the stem? (a) hold the plant in soil (b) give out water vapour (c) hold up the leaves (d) take in water from soil
23. 23.🧺 Which of these is needed for the leafy bag test? (a) vinegar (b) a rubber band (c) a magnet (d) turmeric powder
24. 24.True or false: make food in sunlight is a job of the leaves. (a) True (b) False
25. 25.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) a battery cell (c) a few hours (d) yeast
26. 26.🧺 Which of these is not needed for the leafy bag test? (a) a few hours (b) a clear plastic bag (c) a rubber band (d) a mirror
27. 27.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it wilts and droops (b) it flowers more (c) it grows faster (d) it turns blue
28. 28.🪴 Where did the water inside the bag come from? (a) the rubber band (b) the rain (c) the leaves (d) the plastic
29. 29.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) a magnet (c) a few hours (d) a clear plastic bag
30. 30.⚖️ 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 the one thing we change. (a) True (b) False
31. 31.⚖️ 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
32. 32.🛟 How should the plastic bag be tied around the branch? (a) as tight as possible (b) with a hot glue gun (c) with sharp wire (d) gently, not too tight
33. 33.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) vinegar (c) a rubber band (d) a few hours
34. 34.True or false: a battery cell is not needed for the leafy bag test. (a) False (b) True
35. 35.⚖️ 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) the same kind of bag (c) the size of the plant (d) sun or shade
36. 36.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a battery cell (b) a potted plant (c) sunlight (d) a rubber band
37. 37.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) nothing at all (b) tiny water drops (c) tiny insects (d) salt crystals
38. 38.⚖️ 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 keep it the same (b) we change it (c) we measure it
39. 39.🧺 Which of these is needed for the leafy bag test? (a) vinegar (b) turmeric powder (c) a potted plant (d) a magnet
40. 40.True or false: a rubber band is not needed for the leafy bag test. (a) True (b) False

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