Transpiration Experiment Worksheet

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

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