Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 114 · 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.⚖️ 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
2. 2.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) salt crystals (b) tiny insects (c) tiny water drops (d) nothing at all
3. 3.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) a battery cell (c) sunlight (d) a few hours
4. 4.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it flowers more (b) it grows faster (c) it turns blue (d) it wilts and droops
5. 5.True or false: a mirror is needed for the leafy bag test. (a) False (b) True
6. 6.🧺 Do we need yeast for the leafy bag test? (a) not needed (b) needed
7. 7.🪴 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
8. 8.🛟 Why must a plastic bag never go over anyone’s head? (a) it can block breathing (b) it is too big (c) it changes colour (d) it gets wet
9. 9.🪴 Which part of a plant does this job: hold the plant in soil? (a) stem (b) leaves (c) roots (d) flower
10. 10.🪴 Which part of a plant does this job: take in water from soil? (a) stem (b) roots (c) leaves (d) flower
11. 11.🪴 Through which part does a plant take in water from the soil? (a) the fruits (b) the roots (c) the flowers (d) the leaves
12. 12.🧺 Do we need a magnet for the leafy bag test? (a) not needed (b) needed
13. 13.⚖️ 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
14. 14.🛟 How should the plastic bag be tied around the branch? (a) as tight as possible (b) gently, not too tight (c) with sharp wire (d) with a hot glue gun
15. 15.🪴 Where did the water inside the bag come from? (a) the rain (b) the leaves (c) the plastic (d) the rubber band
16. 16.🧺 Do we need vinegar for the leafy bag test? (a) needed (b) not needed
17. 17.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a clear plastic bag (c) a rubber band (d) a mirror
18. 18.⚖️ 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) False (b) True
19. 19.🧺 Do we need a potted plant for the leafy bag test? (a) not needed (b) needed
20. 20.True or false: make seeds is a job of the flower. (a) True (b) False
21. 21.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) yeast (c) sunlight (d) a few hours
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 same kind of bag (b) the size of the plant (c) the time we wait (d) sun or shade
23. 23.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) vinegar (b) a rubber band (c) a potted plant (d) a few hours
24. 24.True or false: take in water from soil is a job of the roots. (a) True (b) False
25. 25.🪴 Which part of a plant does this job: hold up the leaves? (a) leaves (b) stem (c) flower (d) roots
26. 26.🪴 Which of these is a job of the roots? (a) make seeds (b) take in water from soil (c) make food in sunlight (d) hold up the leaves
27. 27.True or false: sunlight is not needed for the leafy bag test. (a) False (b) True
28. 28.⚖️ 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
29. 29.🧺 Which of these is not needed for the leafy bag test? (a) a rubber band (b) a few hours (c) a potted plant (d) a battery cell
30. 30.True or false: hold the plant in soil is a job of the roots. (a) False (b) True
31. 31.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a potted plant (c) a few hours (d) a magnet
32. 32.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much less water (b) much more water (c) exactly the same (d) it fills with soil
33. 33.True or false: take in water from soil is a job of the flower. (a) True (b) False
34. 34.🔮 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
35. 35.True or false: carry water upward is a job of the roots. (a) True (b) False
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 same kind of bag”? (a) we measure it (b) we keep it the same (c) we change it
37. 37.True or false: sunlight is needed for the leafy bag test. (a) False (b) True
38. 38.True or false: a potted plant is needed for the leafy bag test. (a) True (b) False
39. 39.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) a mirror (c) sunlight (d) a potted plant
40. 40.🧺 Do we need a few hours for the leafy bag test? (a) not needed (b) needed

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