Transpiration Experiment Worksheet

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

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