Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 29 · 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: take in water from soil? (a) stem (b) leaves (c) roots (d) flower
2. 2.🛟 How should the plastic bag be tied around the branch? (a) gently, not too tight (b) as tight as possible (c) with a hot glue gun (d) with sharp wire
3. 3.🧺 Do we need a clear plastic bag for the leafy bag test? (a) needed (b) not needed
4. 4.🛟 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
5. 5.🪴 Which of these is a job of the stem? (a) give out water vapour (b) hold the plant in soil (c) make seeds (d) hold up the leaves
6. 6.🪴 Which part of a plant does this job: make food in sunlight? (a) leaves (b) stem (c) roots (d) flower
7. 7.🧺 Which of these is not needed for the leafy bag test? (a) turmeric powder (b) a potted plant (c) a few hours (d) a rubber band
8. 8.⚖️ 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 measure it (b) we change it (c) we keep it the same
9. 9.🧺 Do we need a magnet for the leafy bag test? (a) needed (b) not needed
10. 10.🧺 Which of these is needed for the leafy bag test? (a) a clear plastic bag (b) a battery cell (c) turmeric powder (d) yeast
11. 11.True or false: sunlight is needed for the leafy bag test. (a) False (b) True
12. 12.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) salt crystals (b) tiny insects (c) nothing at all (d) tiny water drops
13. 13.🪴 Where did the water inside the bag come from? (a) the plastic (b) the leaves (c) the rain (d) the rubber band
14. 14.🧺 Do we need a rubber band for the leafy bag test? (a) not needed (b) needed
15. 15.📘 What do we call plants giving out water vapour from their leaves? (a) digestion (b) reflection (c) germination (d) transpiration
16. 16.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) neither of them (b) both the same (c) the hot sunny day (d) the cool cloudy day
17. 17.🧺 Do we need a few hours for the leafy bag test? (a) not needed (b) needed
18. 18.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the size of the plant”? (a) we keep it the same (b) we measure it (c) we change it
19. 19.True or false: a clear plastic bag is needed for the leafy bag test. (a) False (b) True
20. 20.🪴 Which of these is a job of the stem? (a) take in water from soil (b) make food in sunlight (c) carry water upward (d) give out water vapour
21. 21.🔮 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
22. 22.⚖️ 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
23. 23.🧺 Do we need turmeric powder for the leafy bag test? (a) not needed (b) needed
24. 24.🪴 Which part of a plant does this job: hold the plant in soil? (a) roots (b) stem (c) flower (d) leaves
25. 25.🧺 Which of these is not needed for the leafy bag test? (a) a few hours (b) yeast (c) a potted plant (d) a rubber band
26. 26.🧺 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) vinegar
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 keep it the same (b) we change it (c) we measure it
28. 28.True or false: carry water upward is a job of the stem. (a) True (b) False
29. 29.True or false: hold up the leaves is a job of the flower. (a) True (b) False
30. 30.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) sunlight (c) a rubber band (d) a battery cell
31. 31.🪴 Which of these is a job of the roots? (a) hold up the leaves (b) carry water upward (c) hold the plant in soil (d) make seeds
32. 32.True or false: a battery cell is not needed for the leafy bag test. (a) True (b) False
33. 33.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) roots (b) veins (c) stomata (d) petals
34. 34.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it flowers more (b) it turns blue (c) it grows faster (d) it wilts and droops
35. 35.True or false: vinegar is not needed for the leafy bag test. (a) False (b) True
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 time we wait”? (a) we change it (b) we keep it the same (c) we measure it
37. 37.⚖️ 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) the kind of plant (b) sun or shade (c) amount of water drops
38. 38.🪴 Which of these is a job of the leaves? (a) give out water vapour (b) hold the plant in soil (c) make seeds (d) take in water from soil
39. 39.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a mirror (b) a few hours (c) a clear plastic bag (d) a potted plant
40. 40.⚖️ 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) the time we wait (b) sun or shade (c) amount of water drops

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