Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 131 · 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) much more water (b) it fills with soil (c) much less water (d) exactly the same
2. 2.⚖️ 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
3. 3.🧺 Which of these is needed for the leafy bag test? (a) a battery cell (b) a magnet (c) turmeric powder (d) a few hours
4. 4.🛟 How should the plastic bag be tied around the branch? (a) with a hot glue gun (b) with sharp wire (c) gently, not too tight (d) as tight as possible
5. 5.⚖️ 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
6. 6.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) sunlight (c) a potted plant (d) a battery cell
7. 7.🪴 Which part of a plant does this job: hold the plant in soil? (a) flower (b) stem (c) leaves (d) roots
8. 8.🪴 Which of these is a job of the stem? (a) carry water upward (b) take in water from soil (c) give out water vapour (d) make seeds
9. 9.True or false: yeast is not needed for the leafy bag test. (a) False (b) True
10. 10.⚖️ 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 kept the same. (a) False (b) True
11. 11.⚖️ 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) the size of the plant (d) amount of water drops
12. 12.🪴 Which part of a plant does this job: take in water from soil? (a) stem (b) flower (c) roots (d) leaves
13. 13.🧺 Which of these is needed for the leafy bag test? (a) a battery cell (b) sunlight (c) yeast (d) a mirror
14. 14.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) neither of them (b) both the same (c) the hot sunny day (d) the cool cloudy day
15. 15.True or false: hold up the leaves is a job of the stem. (a) False (b) True
16. 16.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny insects (b) nothing at all (c) tiny water drops (d) salt crystals
17. 17.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it flowers more (b) it turns blue (c) it grows faster (d) it wilts and droops
18. 18.⚖️ 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 change it (c) we keep it the same
19. 19.🧺 Do we need a rubber band for the leafy bag test? (a) not needed (b) needed
20. 20.⚖️ 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 what we measure. (a) True (b) False
21. 21.🪴 Which of these is a job of the leaves? (a) make food in sunlight (b) take in water from soil (c) make seeds (d) hold the plant in soil
22. 22.True or false: give out water vapour is a job of the flower. (a) True (b) False
23. 23.True or false: sunlight is not needed for the leafy bag test. (a) False (b) True
24. 24.🛟 Why must a plastic bag never go over anyone’s head? (a) it is too big (b) it changes colour (c) it can block breathing (d) it gets wet
25. 25.⚖️ 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 keep it the same (c) we change it
26. 26.🧺 Which of these is needed for the leafy bag test? (a) a potted plant (b) a magnet (c) turmeric powder (d) a battery cell
27. 27.True or false: hold the plant in soil is a job of the leaves. (a) False (b) True
28. 28.⚖️ 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) amount of water drops (c) the time we wait (d) sun or shade
29. 29.🧺 Which of these is not needed for the leafy bag test? (a) turmeric powder (b) a potted plant (c) sunlight (d) a clear plastic bag
30. 30.True or false: make food in sunlight is a job of the leaves. (a) False (b) True
31. 31.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) veins (b) roots (c) petals (d) stomata
32. 32.⚖️ 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 kept the same. (a) False (b) True
33. 33.True or false: hold the plant in soil is a job of the roots. (a) False (b) True
34. 34.🧺 Do we need yeast for the leafy bag test? (a) not needed (b) needed
35. 35.🧺 Do we need turmeric powder for the leafy bag test? (a) needed (b) not needed
36. 36.📘 What do we call plants giving out water vapour from their leaves? (a) digestion (b) transpiration (c) reflection (d) germination
37. 37.True or false: a battery cell is not needed for the leafy bag test. (a) False (b) True
38. 38.True or false: give out water vapour is a job of the roots. (a) False (b) True
39. 39.🪴 Which part of a plant does this job: hold up the leaves? (a) leaves (b) flower (c) stem (d) roots
40. 40.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a mirror (b) a rubber band (c) a potted plant (d) a clear plastic bag

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