Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 290 · 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: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) the cool cloudy day (b) the hot sunny day (c) neither of them (d) both the same
2. 2.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) veins (b) roots (c) petals (d) stomata
3. 3.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) a mirror (c) a battery cell (d) a clear plastic bag
4. 4.🪴 Where did the water inside the bag come from? (a) the leaves (b) the rubber band (c) the plastic (d) the rain
5. 5.⚖️ 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) the time we wait (b) amount of water drops (c) sun or shade (d) the same kind of bag
6. 6.🧺 Do we need sunlight for the leafy bag test? (a) not needed (b) needed
7. 7.🪴 Which part of a plant does this job: hold up the leaves? (a) flower (b) leaves (c) roots (d) stem
8. 8.🔮 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
9. 9.True or false: make seeds is a job of the stem. (a) True (b) False
10. 10.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a battery cell (c) sunlight (d) a rubber band
11. 11.🧺 Do we need a rubber band for the leafy bag test? (a) needed (b) not needed
12. 12.True or false: a potted plant is not needed for the leafy bag test. (a) False (b) True
13. 13.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) exactly the same (b) it fills with soil (c) much more water (d) much less water
14. 14.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a magnet (b) a clear plastic bag (c) a rubber band (d) a few hours
15. 15.⚖️ 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
16. 16.🧺 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
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 time we wait”? (a) we measure it (b) we change it (c) we keep it the same
18. 18.⚖️ 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 the one thing we change. (a) False (b) True
19. 19.🧺 Do we need vinegar for the leafy bag test? (a) not needed (b) needed
20. 20.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) a mirror (c) yeast (d) a potted plant
21. 21.🪴 Which part of a plant does this job: give out water vapour? (a) stem (b) leaves (c) roots (d) flower
22. 22.True or false: turmeric powder is needed for the leafy bag test. (a) True (b) False
23. 23.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) a magnet (c) a rubber band (d) vinegar
24. 24.🛟 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
25. 25.📘 What do we call plants giving out water vapour from their leaves? (a) digestion (b) reflection (c) transpiration (d) germination
26. 26.True or false: sunlight is not needed for the leafy bag test. (a) True (b) False
27. 27.⚖️ 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 size of the plant (c) amount of water drops (d) sun or shade
28. 28.🧺 Do we need a mirror for the leafy bag test? (a) needed (b) not needed
29. 29.⚖️ 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 keep it the same (b) we measure it (c) we change it
30. 30.🪴 Which part of a plant does this job: carry water upward? (a) roots (b) stem (c) leaves (d) flower
31. 31.🪴 Which part of a plant does this job: make food in sunlight? (a) roots (b) flower (c) leaves (d) stem
32. 32.True or false: a mirror is not needed for the leafy bag test. (a) True (b) False
33. 33.🧺 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
34. 34.⚖️ 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 size of the plant (b) amount of water drops (c) sun or shade
35. 35.True or false: hold up the leaves is a job of the roots. (a) False (b) True
36. 36.True or false: make seeds is a job of the flower. (a) False (b) True
37. 37.True or false: a battery cell is not needed for the leafy bag test. (a) False (b) True
38. 38.🧺 Do we need a battery cell for the leafy bag test? (a) needed (b) not needed
39. 39.🛟 How should the plastic bag be tied around the branch? (a) gently, not too tight (b) with sharp wire (c) with a hot glue gun (d) as tight as possible
40. 40.⚖️ 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

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