Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 7 · 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.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) it fills with soil (b) exactly the same (c) much less water (d) much more water
2. 2.🪴 Which of these is a job of the leaves? (a) hold up the leaves (b) hold the plant in soil (c) give out water vapour (d) take in water from soil
3. 3.🧺 Which of these is needed for the leafy bag test? (a) a clear plastic bag (b) a battery cell (c) a magnet (d) vinegar
4. 4.True or false: a rubber band is not needed for the leafy bag test. (a) True (b) False
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 size of the plant (b) the time we wait (c) the same kind of bag (d) amount of water drops
6. 6.🪴 Which part of a plant does this job: hold up the leaves? (a) stem (b) flower (c) roots (d) leaves
7. 7.🪴 Which of these is a job of the stem? (a) carry water upward (b) take in water from soil (c) make seeds (d) hold the plant in soil
8. 8.True or false: a clear plastic bag is not needed for the leafy bag test. (a) True (b) False
9. 9.🪴 Which part of a plant does this job: take in water from soil? (a) stem (b) flower (c) roots (d) leaves
10. 10.⚖️ 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
11. 11.🔮 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
12. 12.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) sunlight (c) a rubber band (d) vinegar
13. 13.🧺 Do we need a battery cell for the leafy bag test? (a) not needed (b) needed
14. 14.🛟 Why must a plastic bag never go over anyone’s head? (a) it is too big (b) it gets wet (c) it changes colour (d) it can block breathing
15. 15.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) turmeric powder (c) a few hours (d) a potted plant
16. 16.⚖️ 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
17. 17.⚖️ 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 time we wait
18. 18.True or false: give out water vapour is a job of the flower. (a) True (b) False
19. 19.⚖️ 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) sun or shade (b) amount of water drops (c) the kind of plant
20. 20.True or false: a few hours is needed for the leafy bag test. (a) False (b) True
21. 21.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) sunlight (c) a rubber band (d) a magnet
22. 22.⚖️ 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) False (b) True
23. 23.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) turmeric powder (c) a rubber band (d) a magnet
24. 24.🪴 Where did the water inside the bag come from? (a) the plastic (b) the rain (c) the leaves (d) the rubber band
25. 25.⚖️ 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 change it (c) we measure it
26. 26.🪴 Which part of a plant does this job: hold the plant in soil? (a) leaves (b) roots (c) flower (d) stem
27. 27.🪴 Which of these is a job of the roots? (a) carry water upward (b) hold up the leaves (c) give out water vapour (d) take in water from soil
28. 28.🧺 Do we need a mirror for the leafy bag test? (a) not needed (b) needed
29. 29.🪴 Which part of a plant does this job: make seeds? (a) flower (b) stem (c) roots (d) leaves
30. 30.True or false: carry water upward is a job of the flower. (a) False (b) True
31. 31.🪴 Which of these is a job of the flower? (a) hold the plant in soil (b) give out water vapour (c) hold up the leaves (d) make seeds
32. 32.📘 What do we call plants giving out water vapour from their leaves? (a) digestion (b) transpiration (c) germination (d) reflection
33. 33.🧺 Do we need sunlight for the leafy bag test? (a) not needed (b) needed
34. 34.True or false: a mirror is not needed for the leafy bag test. (a) False (b) True
35. 35.True or false: hold up the leaves is a job of the flower. (a) False (b) True
36. 36.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) veins (b) petals (c) roots (d) stomata
37. 37.True or false: a mirror is needed for the leafy bag test. (a) False (b) True
38. 38.⚖️ 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
39. 39.True or false: a few hours is not needed for the leafy bag test. (a) True (b) False
40. 40.True or false: carry water upward is a job of the stem. (a) False (b) True

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