Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 47 · 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.🛟 How should the plastic bag be tied around the branch? (a) with a hot glue gun (b) gently, not too tight (c) with sharp wire (d) as tight as possible
2. 2.🧺 Do we need vinegar for the leafy bag test? (a) not needed (b) needed
3. 3.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) exactly the same (b) much more water (c) much less water (d) it fills with soil
4. 4.🛟 Why must a plastic bag never go over anyone’s head? (a) it gets wet (b) it changes colour (c) it can block breathing (d) it is too big
5. 5.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) a few hours (c) a magnet (d) sunlight
6. 6.🧺 Do we need a few hours for the leafy bag test? (a) not needed (b) needed
7. 7.⚖️ 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 what we measure. (a) False (b) True
8. 8.🪴 Which of these is a job of the stem? (a) take in water from soil (b) hold up the leaves (c) give out water vapour (d) hold the plant in soil
9. 9.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is the one thing we change? (a) amount of water drops (b) the size of the plant (c) the kind of plant (d) sun or shade
10. 10.True or false: turmeric powder is not needed for the leafy bag test. (a) True (b) False
11. 11.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) a clear plastic bag (c) a mirror (d) yeast
12. 12.True or false: turmeric powder is needed for the leafy bag test. (a) True (b) False
13. 13.🧺 Which of these is not needed for the leafy bag test? (a) a mirror (b) a potted plant (c) a few hours (d) a clear plastic bag
14. 14.⚖️ 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) False (b) True
15. 15.True or false: carry water upward is a job of the roots. (a) True (b) False
16. 16.⚖️ 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
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) the same kind of bag (b) amount of water drops (c) the kind of plant (d) sun or shade
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 kind of plant”? (a) we measure it (b) we keep it the same (c) we change it
19. 19.🧺 Do we need a battery cell for the leafy bag test? (a) needed (b) not needed
20. 20.⚖️ 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 keep it the same (b) we measure it (c) we change it
21. 21.⚖️ 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 keep it the same (b) we measure it (c) we change it
22. 22.True or false: a battery cell is needed for the leafy bag test. (a) True (b) False
23. 23.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) nothing at all (b) tiny insects (c) salt crystals (d) tiny water drops
24. 24.🪴 Through which part does a plant take in water from the soil? (a) the fruits (b) the roots (c) the flowers (d) the leaves
25. 25.⚖️ 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 change it (b) we keep it the same (c) we measure it
26. 26.⚖️ 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
27. 27.True or false: hold the plant in soil is a job of the roots. (a) True (b) False
28. 28.🧺 Which of these is not needed for the leafy bag test? (a) a few hours (b) a potted plant (c) turmeric powder (d) sunlight
29. 29.🪴 Which of these is a job of the flower? (a) make food in sunlight (b) take in water from soil (c) make seeds (d) hold up the leaves
30. 30.🪴 Which part of a plant does this job: take in water from soil? (a) stem (b) flower (c) leaves (d) roots
31. 31.🧺 Do we need sunlight for the leafy bag test? (a) needed (b) not needed
32. 32.True or false: a mirror is needed for the leafy bag test. (a) True (b) False
33. 33.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it turns blue (b) it grows faster (c) it flowers more (d) it wilts and droops
34. 34.🪴 Which part of a plant does this job: hold the plant in soil? (a) flower (b) leaves (c) roots (d) stem
35. 35.🪴 Which of these is a job of the leaves? (a) make food in sunlight (b) carry water upward (c) take in water from soil (d) make seeds
36. 36.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) a rubber band (c) vinegar (d) a potted plant
37. 37.True or false: carry water upward is a job of the stem. (a) False (b) True
38. 38.True or false: give out water vapour is a job of the roots. (a) True (b) False
39. 39.🔮 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
40. 40.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) veins (b) petals (c) stomata (d) roots

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