Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 126 · 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.🪴 Which part of a plant does this job: carry water upward? (a) roots (b) stem (c) leaves (d) flower
2. 2.⚖️ 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) amount of water drops (b) the time we wait (c) the kind of plant (d) the size of the plant
3. 3.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) vinegar (b) a potted plant (c) a few hours (d) a rubber band
4. 4.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a rubber band (c) a mirror (d) a clear plastic bag
5. 5.True or false: give out water vapour is a job of the roots. (a) True (b) False
6. 6.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a magnet (b) a potted plant (c) a few hours (d) a clear plastic bag
7. 7.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it wilts and droops (b) it turns blue (c) it flowers more (d) it grows faster
8. 8.🔮 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) much more water (d) exactly the same
9. 9.🪴 Which of these is a job of the roots? (a) make food in sunlight (b) give out water vapour (c) carry water upward (d) hold the plant in soil
10. 10.True or false: hold the plant in soil is a job of the leaves. (a) True (b) False
11. 11.🛟 How should the plastic bag be tied around the branch? (a) as tight as possible (b) with sharp wire (c) with a hot glue gun (d) gently, not too tight
12. 12.🧺 Which of these is not needed for the leafy bag test? (a) a battery cell (b) a clear plastic bag (c) sunlight (d) a few hours
13. 13.🧺 Do we need a potted plant for the leafy bag test? (a) not needed (b) needed
14. 14.⚖️ 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) the same kind of bag (c) sun or shade
15. 15.⚖️ 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 measure it (c) we change it
16. 16.🧺 Do we need a battery cell for the leafy bag test? (a) not needed (b) needed
17. 17.🪴 Which part of a plant does this job: give out water vapour? (a) flower (b) leaves (c) stem (d) roots
18. 18.True or false: vinegar is needed for the leafy bag test. (a) True (b) False
19. 19.🪴 Which part of a plant does this job: hold the plant in soil? (a) stem (b) flower (c) leaves (d) roots
20. 20.⚖️ 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) False (b) True
21. 21.🪴 Which of these is a job of the leaves? (a) take in water from soil (b) hold up the leaves (c) hold the plant in soil (d) make food in sunlight
22. 22.🛟 Why must a plastic bag never go over anyone’s head? (a) it is too big (b) it can block breathing (c) it changes colour (d) it gets wet
23. 23.True or false: give out water vapour is a job of the stem. (a) False (b) True
24. 24.🪴 Which of these is a job of the stem? (a) give out water vapour (b) take in water from soil (c) hold the plant in soil (d) carry water upward
25. 25.⚖️ 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
26. 26.True or false: a potted plant is needed for the leafy bag test. (a) False (b) True
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 measure it (b) we change it (c) we keep it the same
28. 28.True or false: a clear plastic bag is needed for the leafy bag test. (a) True (b) False
29. 29.🪴 Which of these is a job of the flower? (a) hold the plant in soil (b) make seeds (c) take in water from soil (d) carry water upward
30. 30.⚖️ 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 measure it (b) we change it (c) we keep it the same
31. 31.True or false: hold up the leaves is a job of the stem. (a) False (b) True
32. 32.True or false: yeast is needed for the leafy bag test. (a) True (b) False
33. 33.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny water drops (b) tiny insects (c) salt crystals (d) nothing at all
34. 34.🧺 Do we need sunlight for the leafy bag test? (a) needed (b) not needed
35. 35.🧺 Which of these is not needed for the leafy bag test? (a) a rubber band (b) sunlight (c) a potted plant (d) a magnet
36. 36.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) roots (b) petals (c) veins (d) stomata
37. 37.🪴 Where did the water inside the bag come from? (a) the rain (b) the plastic (c) the rubber band (d) the leaves
38. 38.True or false: a few hours is needed for the leafy bag test. (a) True (b) False
39. 39.True or false: a potted plant is not needed for the leafy bag test. (a) False (b) True
40. 40.⚖️ 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

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