Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 112 · 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.🧺 Do we need a clear plastic bag for the leafy bag test? (a) not needed (b) needed
2. 2.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) salt crystals (b) tiny water drops (c) tiny insects (d) nothing at all
3. 3.🧺 Do we need a potted plant for the leafy bag test? (a) not needed (b) needed
4. 4.🪴 Through which part does a plant take in water from the soil? (a) the flowers (b) the roots (c) the fruits (d) the leaves
5. 5.🧺 Do we need a few hours for the leafy bag test? (a) not needed (b) needed
6. 6.⚖️ 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 change it (c) we measure it
7. 7.🧺 Do we need vinegar for the leafy bag test? (a) needed (b) not needed
8. 8.🪴 Which part of a plant does this job: carry water upward? (a) stem (b) leaves (c) flower (d) roots
9. 9.True or false: give out water vapour is a job of the roots. (a) True (b) False
10. 10.True or false: give out water vapour is a job of the leaves. (a) False (b) True
11. 11.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) both the same (b) neither of them (c) the cool cloudy day (d) the hot sunny day
12. 12.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a battery cell (b) a potted plant (c) a rubber band (d) a clear plastic bag
13. 13.True or false: hold the plant in soil is a job of the roots. (a) False (b) True
14. 14.⚖️ 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) sun or shade (b) amount of water drops (c) the kind of plant (d) the same kind of bag
15. 15.True or false: make food in sunlight is a job of the flower. (a) False (b) True
16. 16.True or false: a few hours is not needed for the leafy bag test. (a) True (b) False
17. 17.🪴 Which of these is a job of the flower? (a) take in water from soil (b) hold up the leaves (c) give out water vapour (d) make seeds
18. 18.🪴 Which part of a plant does this job: take in water from soil? (a) stem (b) leaves (c) flower (d) roots
19. 19.🪴 Which part of a plant does this job: make seeds? (a) flower (b) stem (c) leaves (d) roots
20. 20.🧺 Which of these is not needed for the leafy bag test? (a) sunlight (b) turmeric powder (c) a few hours (d) a rubber band
21. 21.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (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? True or false: the size of the plant is what we measure. (a) False (b) True
23. 23.True or false: a clear plastic bag is needed for the leafy bag test. (a) False (b) True
24. 24.🛟 How should the plastic bag be tied around the branch? (a) with sharp wire (b) with a hot glue gun (c) as tight as possible (d) gently, not too tight
25. 25.True or false: carry water upward is a job of the stem. (a) True (b) False
26. 26.🪴 Which part of a plant does this job: give out water vapour? (a) stem (b) flower (c) roots (d) leaves
27. 27.⚖️ 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
28. 28.🪴 Which of these is a job of the leaves? (a) carry water upward (b) make food in sunlight (c) take in water from soil (d) hold the plant in soil
29. 29.True or false: a rubber band is needed for the leafy bag test. (a) True (b) False
30. 30.🪴 Which of these is a job of the stem? (a) make food in sunlight (b) make seeds (c) give out water vapour (d) carry water upward
31. 31.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) a rubber band (c) sunlight (d) a mirror
32. 32.🧺 Do we need sunlight for the leafy bag test? (a) needed (b) not needed
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) amount of water drops (c) the kind of plant
34. 34.🪴 Which part of a plant does this job: hold the plant in soil? (a) stem (b) flower (c) roots (d) leaves
35. 35.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) vinegar (c) sunlight (d) a potted plant
36. 36.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much less water (b) it fills with soil (c) exactly the same (d) much more water
37. 37.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) a magnet (c) vinegar (d) a rubber band
38. 38.True or false: a potted plant is not needed for the leafy bag test. (a) True (b) False
39. 39.🛟 Why must a plastic bag never go over anyone’s head? (a) it gets wet (b) it is too big (c) it can block breathing (d) it changes colour
40. 40.📘 What do we call plants giving out water vapour from their leaves? (a) transpiration (b) digestion (c) germination (d) reflection

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