Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 85 · 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.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) nothing at all (b) tiny water drops (c) tiny insects (d) salt crystals
2. 2.🪴 Which part of a plant does this job: make seeds? (a) leaves (b) flower (c) stem (d) roots
3. 3.🧺 Do we need a potted plant for the leafy bag test? (a) needed (b) not needed
4. 4.🧺 Which of these is needed for the leafy bag test? (a) a potted plant (b) vinegar (c) yeast (d) a battery cell
5. 5.True or false: take in water from soil is a job of the roots. (a) False (b) True
6. 6.⚖️ 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 keep it the same (c) we change it
7. 7.🪴 Which of these is a job of the leaves? (a) hold up the leaves (b) carry water upward (c) hold the plant in soil (d) make food in sunlight
8. 8.⚖️ 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
9. 9.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: sun or shade is kept the same. (a) False (b) True
10. 10.True or false: a rubber band is needed for the leafy bag test. (a) False (b) True
11. 11.True or false: hold up the leaves is a job of the stem. (a) False (b) True
12. 12.True or false: hold up the leaves is a job of the leaves. (a) False (b) True
13. 13.🪴 Which part of a plant does this job: make food in sunlight? (a) flower (b) stem (c) leaves (d) roots
14. 14.⚖️ 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 keep it the same (b) we change it (c) we measure it
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 same kind of bag”? (a) we change it (b) we measure it (c) we keep it the same
16. 16.📘 What do we call plants giving out water vapour from their leaves? (a) digestion (b) transpiration (c) reflection (d) germination
17. 17.🧺 Which of these is not needed for the leafy bag test? (a) a magnet (b) a potted plant (c) sunlight (d) a few hours
18. 18.🧺 Which of these is needed for the leafy bag test? (a) yeast (b) a magnet (c) a clear plastic bag (d) a battery cell
19. 19.🛟 How should the plastic bag be tied around the branch? (a) gently, not too tight (b) with a hot glue gun (c) as tight as possible (d) with sharp wire
20. 20.⚖️ 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
21. 21.True or false: hold up the leaves is a job of the flower. (a) False (b) True
22. 22.🛟 Why must a plastic bag never go over anyone’s head? (a) it is too big (b) it changes colour (c) it can block breathing (d) it gets wet
23. 23.🧺 Do we need vinegar for the leafy bag test? (a) not needed (b) needed
24. 24.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much less water (b) exactly the same (c) it fills with soil (d) much more water
25. 25.True or false: a mirror is needed for the leafy bag test. (a) True (b) False
26. 26.⚖️ 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 what we measure. (a) True (b) False
27. 27.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a potted plant (c) a clear plastic bag (d) vinegar
28. 28.🧺 Which of these is needed for the leafy bag test? (a) a rubber band (b) a magnet (c) a mirror (d) turmeric powder
29. 29.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a few hours (c) turmeric powder (d) sunlight
30. 30.True or false: make food in sunlight is a job of the flower. (a) True (b) False
31. 31.⚖️ 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
32. 32.🪴 Which part of a plant does this job: carry water upward? (a) roots (b) flower (c) stem (d) leaves
33. 33.🧺 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 potted plant (d) yeast
34. 34.⚖️ 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) sun or shade (c) the time we wait (d) the size of the plant
35. 35.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) veins (b) roots (c) petals (d) stomata
36. 36.True or false: take in water from soil is a job of the stem. (a) True (b) False
37. 37.🪴 Where did the water inside the bag come from? (a) the leaves (b) the plastic (c) the rain (d) the rubber band
38. 38.⚖️ 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
39. 39.⚖️ 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
40. 40.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it wilts and droops (b) it turns blue (c) it grows faster (d) it flowers more

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