Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 221 · 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.True or false: turmeric powder is needed for the leafy bag test. (a) False (b) True
2. 2.🪴 Which part of a plant does this job: give out water vapour? (a) stem (b) leaves (c) roots (d) flower
3. 3.🛟 How should the plastic bag be tied around the branch? (a) gently, not too tight (b) with a hot glue gun (c) with sharp wire (d) as tight as possible
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 time we wait”? (a) we change it (b) we measure it (c) we keep it the same
5. 5.True or false: a rubber band is not needed for the leafy bag test. (a) True (b) False
6. 6.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) a rubber band (c) yeast (d) a few hours
7. 7.🧺 Do we need vinegar for the leafy bag test? (a) not needed (b) needed
8. 8.⚖️ 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 same kind of bag
9. 9.🪴 Where did the water inside the bag come from? (a) the rubber band (b) the rain (c) the plastic (d) the leaves
10. 10.🪴 Which of these is a job of the stem? (a) hold up the leaves (b) give out water vapour (c) take in water from soil (d) hold the plant in soil
11. 11.⚖️ 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 time we wait (c) the size of the plant (d) the kind of plant
12. 12.🪴 Which part of a plant does this job: hold the plant in soil? (a) roots (b) stem (c) leaves (d) flower
13. 13.🧺 Which of these is not needed for the leafy bag test? (a) a few hours (b) a rubber band (c) a clear plastic bag (d) a magnet
14. 14.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) a potted plant (c) a clear plastic bag (d) a battery cell
15. 15.🧺 Which of these is needed for the leafy bag test? (a) a battery cell (b) a mirror (c) sunlight (d) yeast
16. 16.🪴 Which of these is a job of the stem? (a) hold the plant in soil (b) give out water vapour (c) carry water upward (d) take in water from soil
17. 17.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) a battery cell (c) a mirror (d) a potted plant
18. 18.⚖️ 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 the one thing we change. (a) True (b) False
19. 19.🧺 Which of these is not needed for the leafy bag test? (a) a few hours (b) a mirror (c) a potted plant (d) a rubber band
20. 20.🪴 Which of these is a job of the leaves? (a) give out water vapour (b) hold the plant in soil (c) make seeds (d) carry water upward
21. 21.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it turns blue (b) it grows faster (c) it wilts and droops (d) it flowers more
22. 22.🛟 Why must a plastic bag never go over anyone’s head? (a) it can block breathing (b) it is too big (c) it gets wet (d) it changes colour
23. 23.🪴 Which part of a plant does this job: take in water from soil? (a) stem (b) roots (c) leaves (d) flower
24. 24.🪴 Which part of a plant does this job: make food in sunlight? (a) roots (b) stem (c) flower (d) leaves
25. 25.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) turmeric powder (c) a few hours (d) sunlight
26. 26.🧺 Do we need a magnet for the leafy bag test? (a) needed (b) not needed
27. 27.⚖️ 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 change it (b) we measure it (c) we keep it the same
28. 28.⚖️ 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 measure it (c) we change it
29. 29.📘 What do we call plants giving out water vapour from their leaves? (a) digestion (b) transpiration (c) germination (d) reflection
30. 30.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much more water (b) much less water (c) it fills with soil (d) exactly the same
31. 31.True or false: yeast is needed for the leafy bag test. (a) True (b) False
32. 32.True or false: hold the plant in soil is a job of the flower. (a) True (b) False
33. 33.⚖️ 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
34. 34.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny insects (b) tiny water drops (c) salt crystals (d) nothing at all
35. 35.🧺 Do we need sunlight for the leafy bag test? (a) not needed (b) needed
36. 36.⚖️ 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
37. 37.⚖️ 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
38. 38.True or false: vinegar is needed for the leafy bag test. (a) True (b) False
39. 39.🧺 Do we need a mirror for the leafy bag test? (a) not needed (b) needed
40. 40.🪴 Which of these is a job of the leaves? (a) hold the plant in soil (b) carry water upward (c) make food in sunlight (d) hold up the leaves

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