Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 233 · 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 hot sunny day (b) the cool cloudy day (c) both the same (d) neither of them
2. 2.True or false: sunlight is not needed for the leafy bag test. (a) True (b) False
3. 3.⚖️ 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) amount of water drops (b) the time we wait (c) the kind of plant (d) sun or shade
4. 4.⚖️ 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 kept the same. (a) True (b) False
5. 5.⚖️ 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
6. 6.🧺 Do we need turmeric powder for the leafy bag test? (a) not needed (b) needed
7. 7.🪴 Which of these is a job of the roots? (a) give out water vapour (b) make seeds (c) make food in sunlight (d) hold the plant in soil
8. 8.🪴 Which part of a plant does this job: make seeds? (a) stem (b) leaves (c) flower (d) roots
9. 9.🪴 Which of these is a job of the stem? (a) make seeds (b) make food in sunlight (c) carry water upward (d) take in water from soil
10. 10.⚖️ 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) the same kind of bag (c) sun or shade
11. 11.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a few hours (c) a magnet (d) a clear plastic bag
12. 12.🪴 Which part of a plant does this job: carry water upward? (a) leaves (b) stem (c) roots (d) flower
13. 13.📘 What do we call plants giving out water vapour from their leaves? (a) germination (b) digestion (c) reflection (d) transpiration
14. 14.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) vinegar (c) a potted plant (d) a rubber band
15. 15.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) yeast (c) a clear plastic bag (d) a few hours
16. 16.True or false: give out water vapour is a job of the stem. (a) True (b) False
17. 17.🪴 Through which part does a plant take in water from the soil? (a) the fruits (b) the flowers (c) the roots (d) the leaves
18. 18.⚖️ 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 keep it the same (c) we change it
19. 19.⚖️ 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) the same kind of bag (d) sun or shade
20. 20.🛟 Why must a plastic bag never go over anyone’s head? (a) it can block breathing (b) it gets wet (c) it changes colour (d) it is too big
21. 21.True or false: hold the plant in soil is a job of the flower. (a) True (b) False
22. 22.🪴 Which part of a plant does this job: take in water from soil? (a) flower (b) roots (c) leaves (d) stem
23. 23.🧺 Which of these is needed for the leafy bag test? (a) a clear plastic bag (b) turmeric powder (c) a mirror (d) yeast
24. 24.⚖️ 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 what we measure. (a) False (b) True
25. 25.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) a mirror (c) vinegar (d) a rubber band
26. 26.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much less water (b) much more water (c) exactly the same (d) it fills with soil
27. 27.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a battery cell (c) a rubber band (d) a few hours
28. 28.🪴 Where did the water inside the bag come from? (a) the rubber band (b) the rain (c) the plastic (d) the leaves
29. 29.⚖️ 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) False (b) True
30. 30.⚖️ 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 change it (b) we measure it (c) we keep it the same
31. 31.True or false: a few hours is needed for the leafy bag test. (a) False (b) True
32. 32.🪴 Which of these is a job of the leaves? (a) carry water upward (b) hold up the leaves (c) give out water vapour (d) make seeds
33. 33.🛟 How should the plastic bag be tied around the branch? (a) gently, not too tight (b) with a hot glue gun (c) as tight as possible (d) with sharp wire
34. 34.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it grows faster (b) it wilts and droops (c) it turns blue (d) it flowers more
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 same kind of bag”? (a) we change it (b) we measure it (c) we keep it the same
36. 36.⚖️ 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 measure it (c) we change it
37. 37.True or false: make seeds is a job of the flower. (a) False (b) True
38. 38.🔍 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
39. 39.True or false: a battery cell is not needed for the leafy bag test. (a) False (b) True
40. 40.⚖️ 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 keep it the same (c) we measure it

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