Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 12 · 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) it fills with soil (b) exactly the same (c) much more water (d) much less water
2. 2.🧺 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
3. 3.🪴 Through which part does a plant take in water from the soil? (a) the leaves (b) the roots (c) the fruits (d) the flowers
4. 4.🛟 Why must a plastic bag never go over anyone’s head? (a) it gets wet (b) it can block breathing (c) it is too big (d) it changes colour
5. 5.🧺 Do we need vinegar for the leafy bag test? (a) not needed (b) needed
6. 6.🪴 Which part of a plant does this job: take in water from soil? (a) stem (b) roots (c) leaves (d) flower
7. 7.🔍 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
8. 8.⚖️ 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) the size of the plant (c) amount of water drops
9. 9.True or false: a mirror is needed for the leafy bag test. (a) True (b) False
10. 10.🪴 Which of these is a job of the leaves? (a) give out water vapour (b) take in water from soil (c) make seeds (d) hold the plant in soil
11. 11.⚖️ 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 same kind of bag (c) the size of the plant (d) sun or shade
12. 12.🧺 Which of these is needed for the leafy bag test? (a) yeast (b) vinegar (c) turmeric powder (d) a potted plant
13. 13.⚖️ 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) True (b) False
14. 14.True or false: turmeric powder is needed for the leafy bag test. (a) True (b) False
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? What do we do with “the time we wait”? (a) we keep it the same (b) we change it (c) we measure it
17. 17.True or false: a magnet is not needed for the leafy bag test. (a) True (b) False
18. 18.True or false: vinegar is needed for the leafy bag test. (a) False (b) True
19. 19.True or false: a few hours is not needed for the leafy bag test. (a) True (b) False
20. 20.🧺 Do we need a magnet for the leafy bag test? (a) not needed (b) needed
21. 21.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) yeast (b) a few hours (c) a potted plant (d) sunlight
22. 22.⚖️ 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
23. 23.⚖️ 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 same kind of bag (b) amount of water drops (c) sun or shade
24. 24.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the time we wait is what we measure. (a) False (b) True
25. 25.🧺 Which of these is not needed for the leafy bag test? (a) a few hours (b) a clear plastic bag (c) a potted plant (d) turmeric powder
26. 26.🪴 Which of these is a job of the roots? (a) hold up the leaves (b) hold the plant in soil (c) carry water upward (d) give out water vapour
27. 27.📘 What do we call plants giving out water vapour from their leaves? (a) germination (b) transpiration (c) digestion (d) reflection
28. 28.⚖️ 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
29. 29.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) a battery cell (c) vinegar (d) a rubber band
30. 30.🧺 Do we need turmeric powder for the leafy bag test? (a) not needed (b) needed
31. 31.🛟 How should the plastic bag be tied around the branch? (a) with sharp wire (b) as tight as possible (c) with a hot glue gun (d) gently, not too tight
32. 32.True or false: carry water upward is a job of the stem. (a) True (b) False
33. 33.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it grows faster (b) it turns blue (c) it flowers more (d) it wilts and droops
34. 34.True or false: take in water from soil is a job of the roots. (a) False (b) True
35. 35.🪴 Which part of a plant does this job: make seeds? (a) stem (b) flower (c) leaves (d) roots
36. 36.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) turmeric powder (b) a potted plant (c) sunlight (d) a clear plastic bag
37. 37.🪴 Which part of a plant does this job: hold up the leaves? (a) flower (b) leaves (c) stem (d) roots
38. 38.True or false: a potted plant is needed for the leafy bag test. (a) True (b) False
39. 39.True or false: carry water upward is a job of the leaves. (a) False (b) True
40. 40.True or false: make seeds is a job of the flower. (a) False (b) True

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