Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 305 · 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) exactly the same (b) much less water (c) it fills with soil (d) much more water
2. 2.True or false: a potted plant is needed for the leafy bag test. (a) True (b) False
3. 3.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a rubber band (c) a few hours (d) vinegar
4. 4.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it grows faster (b) it turns blue (c) it flowers more (d) it wilts and droops
5. 5.⚖️ 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 size of the plant (b) sun or shade (c) the kind of plant (d) amount of water drops
6. 6.True or false: a battery cell is needed for the leafy bag test. (a) True (b) False
7. 7.True or false: a magnet is not needed for the leafy bag test. (a) True (b) False
8. 8.🪴 Which of these is a job of the flower? (a) give out water vapour (b) make seeds (c) carry water upward (d) make food in sunlight
9. 9.🧺 Do we need a battery cell for the leafy bag test? (a) not needed (b) needed
10. 10.🪴 Through which part does a plant take in water from the soil? (a) the flowers (b) the roots (c) the fruits (d) the leaves
11. 11.🧺 Which of these is needed for the leafy bag test? (a) yeast (b) turmeric powder (c) a potted plant (d) a magnet
12. 12.🧺 Do we need a rubber band for the leafy bag test? (a) not needed (b) needed
13. 13.🛟 Why must a plastic bag never go over anyone’s head? (a) it changes colour (b) it is too big (c) it gets wet (d) it can block breathing
14. 14.⚖️ 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 keep it the same (c) we measure it
15. 15.True or false: a potted plant is not needed for the leafy bag test. (a) False (b) True
16. 16.🧺 Do we need a clear plastic bag for the leafy bag test? (a) not needed (b) needed
17. 17.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a rubber band (c) a clear plastic bag (d) a magnet
18. 18.⚖️ 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 the one thing we change. (a) True (b) False
19. 19.True or false: turmeric powder is needed for the leafy bag test. (a) False (b) True
20. 20.True or false: a mirror is needed for the leafy bag test. (a) False (b) True
21. 21.🪴 Which part of a plant does this job: take in water from soil? (a) leaves (b) stem (c) roots (d) flower
22. 22.⚖️ 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) sun or shade (c) amount of water drops (d) the time we wait
23. 23.🧺 Which of these is needed for the leafy bag test? (a) a battery cell (b) a clear plastic bag (c) a mirror (d) a magnet
24. 24.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) the hot sunny day (b) neither of them (c) the cool cloudy day (d) both the same
25. 25.🛟 How should the plastic bag be tied around the branch? (a) with a hot glue gun (b) with sharp wire (c) gently, not too tight (d) as tight as possible
26. 26.True or false: give out water vapour is a job of the flower. (a) True (b) False
27. 27.🧺 Do we need yeast for the leafy bag test? (a) not needed (b) needed
28. 28.True or false: take in water from soil is a job of the flower. (a) False (b) True
29. 29.⚖️ 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) False (b) True
30. 30.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) nothing at all (b) tiny insects (c) salt crystals (d) tiny water drops
31. 31.🧺 Do we need a mirror for the leafy bag test? (a) needed (b) not needed
32. 32.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) a potted plant (c) a battery cell (d) a few hours
33. 33.True or false: give out water vapour is a job of the leaves. (a) False (b) True
34. 34.🪴 Which part of a plant does this job: make food in sunlight? (a) stem (b) leaves (c) roots (d) flower
35. 35.🧺 Which of these is not needed for the leafy bag test? (a) a rubber band (b) a clear plastic bag (c) a magnet (d) a potted plant
36. 36.True or false: sunlight is needed for the leafy bag test. (a) False (b) True
37. 37.🧺 Which of these is not needed for the leafy bag test? (a) turmeric powder (b) a few hours (c) a clear plastic bag (d) a rubber band
38. 38.⚖️ 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 keep it the same (b) we measure it (c) we change it
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) False (b) True
40. 40.🪴 Which of these is a job of the leaves? (a) hold up the leaves (b) hold the plant in soil (c) give out water vapour (d) carry water upward

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