Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 326 · 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) digestion (b) reflection (c) germination (d) transpiration
2. 2.⚖️ 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
3. 3.True or false: give out water vapour is a job of the leaves. (a) True (b) False
4. 4.🪴 Which of these is a job of the flower? (a) hold up the leaves (b) carry water upward (c) make food in sunlight (d) make seeds
5. 5.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny insects (b) salt crystals (c) nothing at all (d) tiny water drops
6. 6.🪴 Which part of a plant does this job: hold the plant in soil? (a) stem (b) roots (c) leaves (d) flower
7. 7.🛟 How should the plastic bag be tied around the branch? (a) as tight as possible (b) with sharp wire (c) gently, not too tight (d) with a hot glue gun
8. 8.🧺 Which of these is needed for the leafy bag test? (a) yeast (b) vinegar (c) a magnet (d) a potted plant
9. 9.True or false: make food in sunlight is a job of the roots. (a) True (b) False
10. 10.⚖️ 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
11. 11.⚖️ 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 time we wait
12. 12.⚖️ 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
13. 13.🧺 Which of these is not needed for the leafy bag test? (a) a few hours (b) a mirror (c) sunlight (d) a potted plant
14. 14.🧺 Which of these is needed for the leafy bag test? (a) a rubber band (b) yeast (c) a magnet (d) turmeric powder
15. 15.🪴 Where did the water inside the bag come from? (a) the rubber band (b) the leaves (c) the plastic (d) the rain
16. 16.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a magnet (c) a rubber band (d) a clear plastic bag
17. 17.🛟 Why must a plastic bag never go over anyone’s head? (a) it changes colour (b) it is too big (c) it gets wet (d) it can block breathing
18. 18.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it grows faster (b) it flowers more (c) it turns blue (d) it wilts and droops
19. 19.🧺 Do we need a mirror for the leafy bag test? (a) not needed (b) needed
20. 20.True or false: take in water from soil is a job of the roots. (a) True (b) False
21. 21.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much more water (b) exactly the same (c) much less water (d) it fills with soil
22. 22.True or false: yeast is not needed for the leafy bag test. (a) True (b) False
23. 23.True or false: turmeric powder is not needed for the leafy bag test. (a) True (b) False
24. 24.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a mirror (c) a potted plant (d) sunlight
25. 25.🧺 Do we need a clear plastic bag for the leafy bag test? (a) not needed (b) needed
26. 26.🧺 Do we need yeast for the leafy bag test? (a) needed (b) not needed
27. 27.True or false: hold the plant in soil is a job of the roots. (a) False (b) True
28. 28.True or false: a potted plant is not needed for the leafy bag test. (a) True (b) False
29. 29.True or false: carry water upward is a job of the stem. (a) True (b) False
30. 30.True or false: a rubber band is needed for the leafy bag test. (a) True (b) False
31. 31.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) a battery cell (c) a clear plastic bag (d) a potted plant
32. 32.⚖️ 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 change it (c) we measure it
33. 33.⚖️ 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
34. 34.⚖️ 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) sun or shade (c) the kind of plant (d) amount of water drops
35. 35.⚖️ 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 change it (b) we measure it (c) we keep it the same
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 food in sunlight
37. 37.⚖️ 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
38. 38.🧺 Which of these is needed for the leafy bag test? (a) sunlight (b) a magnet (c) vinegar (d) yeast
39. 39.⚖️ 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
40. 40.🪴 Which part of a plant does this job: give out water vapour? (a) flower (b) roots (c) leaves (d) stem

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