Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 140 · 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) exactly the same (b) much less water (c) it fills with soil (d) much more water
2. 2.🛟 Why must a plastic bag never go over anyone’s head? (a) it changes colour (b) it gets wet (c) it is too big (d) it can block breathing
3. 3.🪴 Which part of a plant does this job: hold the plant in soil? (a) stem (b) leaves (c) roots (d) flower
4. 4.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it wilts and droops (b) it flowers more (c) it grows faster (d) it turns blue
5. 5.True or false: a potted plant is not needed for the leafy bag test. (a) True (b) False
6. 6.⚖️ 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) sun or shade (b) the same kind of bag (c) amount of water drops (d) the size of the plant
7. 7.🛟 How should the plastic bag be tied around the branch? (a) as tight as possible (b) with sharp wire (c) with a hot glue gun (d) gently, not too tight
8. 8.🪴 Which of these is a job of the leaves? (a) make food in sunlight (b) make seeds (c) carry water upward (d) take in water from soil
9. 9.⚖️ 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) True (b) False
10. 10.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) a few hours (c) vinegar (d) a potted plant
11. 11.⚖️ 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 keep it the same (c) we change it
12. 12.🪴 Through which part does a plant take in water from the soil? (a) the flowers (b) the fruits (c) the roots (d) the leaves
13. 13.🪴 Where did the water inside the bag come from? (a) the leaves (b) the plastic (c) the rubber band (d) the rain
14. 14.🪴 Which part of a plant does this job: make seeds? (a) roots (b) stem (c) flower (d) leaves
15. 15.🪴 Which part of a plant does this job: make food in sunlight? (a) leaves (b) stem (c) roots (d) flower
16. 16.⚖️ 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 same kind of bag (b) the time we wait (c) sun or shade (d) the size of the 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 same kind of bag”? (a) we keep it the same (b) we measure it (c) we change it
18. 18.🪴 Which of these is a job of the roots? (a) carry water upward (b) make food in sunlight (c) make seeds (d) take in water from soil
19. 19.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) a rubber band (c) a mirror (d) sunlight
20. 20.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny water drops (b) nothing at all (c) salt crystals (d) tiny insects
21. 21.🧺 Which of these is needed for the leafy bag test? (a) a clear plastic bag (b) vinegar (c) a battery cell (d) turmeric powder
22. 22.🧺 Do we need turmeric powder for the leafy bag test? (a) needed (b) not needed
23. 23.⚖️ 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 change it (b) we measure it (c) we keep it the same
24. 24.⚖️ 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 measure it (b) we keep it the same (c) we change it
25. 25.⚖️ 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 the one thing we change. (a) False (b) True
26. 26.⚖️ 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) True (b) False
27. 27.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) a rubber band (c) a potted plant (d) a magnet
28. 28.🔮 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) the hot sunny day (d) both the same
29. 29.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) a battery cell (c) a rubber band (d) a magnet
30. 30.⚖️ 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 measure it (b) we change it (c) we keep it the same
31. 31.🪴 Which part of a plant does this job: hold up the leaves? (a) flower (b) stem (c) roots (d) leaves
32. 32.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a potted plant (c) a battery cell (d) a rubber band
33. 33.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) a few hours (c) yeast (d) a clear plastic bag
34. 34.True or false: a magnet is not needed for the leafy bag test. (a) True (b) False
35. 35.⚖️ 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
36. 36.🪴 Which part of a plant does this job: carry water upward? (a) roots (b) stem (c) leaves (d) flower
37. 37.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) sunlight (c) a mirror (d) a clear plastic bag
38. 38.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: sun or shade is what we measure. (a) True (b) False
39. 39.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) a few hours (c) sunlight (d) turmeric powder
40. 40.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a potted plant (c) a few hours (d) turmeric powder

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