Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 315 · 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 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
2. 2.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) a mirror (c) a rubber band (d) a few hours
3. 3.🪴 Which part of a plant does this job: make seeds? (a) leaves (b) stem (c) roots (d) flower
4. 4.⚖️ 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) sun or shade (b) the size of the plant (c) the kind of plant (d) the same kind of bag
5. 5.🧺 Do we need a mirror for the leafy bag test? (a) not needed (b) needed
6. 6.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) both the same (b) the cool cloudy day (c) neither of them (d) the hot sunny day
7. 7.⚖️ 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) False (b) True
8. 8.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) a rubber band (c) vinegar (d) a magnet
9. 9.🧺 Which of these is needed for the leafy bag test? (a) vinegar (b) turmeric powder (c) a mirror (d) sunlight
10. 10.🪴 Which of these is a job of the stem? (a) make seeds (b) take in water from soil (c) make food in sunlight (d) hold up the leaves
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 change it (b) we keep it the same (c) we measure it
12. 12.🧺 Which of these is not needed for the leafy bag test? (a) a few hours (b) turmeric powder (c) a potted plant (d) a rubber band
13. 13.🪴 Which of these is a job of the roots? (a) hold the plant in soil (b) make food in sunlight (c) hold up the leaves (d) give out water vapour
14. 14.📘 What do we call plants giving out water vapour from their leaves? (a) germination (b) digestion (c) transpiration (d) reflection
15. 15.True or false: sunlight is needed for the leafy bag test. (a) False (b) True
16. 16.🪴 Through which part does a plant take in water from the soil? (a) the leaves (b) the flowers (c) the fruits (d) the roots
17. 17.True or false: a rubber band is not needed for the leafy bag test. (a) True (b) False
18. 18.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: sun or shade is kept the same. (a) True (b) False
19. 19.⚖️ 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 keep it the same (c) we measure it
20. 20.True or false: a magnet is needed for the leafy bag test. (a) False (b) True
21. 21.🔮 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
22. 22.🪴 Which part of a plant does this job: hold up the leaves? (a) roots (b) flower (c) leaves (d) stem
23. 23.True or false: take in water from soil is a job of the leaves. (a) True (b) False
24. 24.🪴 Which of these is a job of the roots? (a) hold up the leaves (b) take in water from soil (c) make food in sunlight (d) make seeds
25. 25.True or false: make food in sunlight is a job of the leaves. (a) True (b) False
26. 26.🧺 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) a rubber band (d) a few hours
27. 27.True or false: make food in sunlight is a job of the stem. (a) True (b) False
28. 28.True or false: vinegar is needed for the leafy bag test. (a) False (b) True
29. 29.🛟 How should the plastic bag be tied around the branch? (a) gently, not too tight (b) with sharp wire (c) as tight as possible (d) with a hot glue gun
30. 30.⚖️ 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) True (b) False
31. 31.⚖️ 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
32. 32.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) yeast (c) a few hours (d) a clear plastic bag
33. 33.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a magnet (b) a rubber band (c) sunlight (d) a few hours
34. 34.🧺 Do we need a clear plastic bag for the leafy bag test? (a) needed (b) not needed
35. 35.🪴 Which part of a plant does this job: carry water upward? (a) leaves (b) roots (c) flower (d) stem
36. 36.🛟 Why must a plastic bag never go over anyone’s head? (a) it can block breathing (b) it gets wet (c) it is too big (d) it changes colour
37. 37.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) a potted plant (c) sunlight (d) a mirror
38. 38.⚖️ 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) True (b) False
39. 39.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) exactly the same (b) it fills with soil (c) much more water (d) much less water
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 same kind of bag”? (a) we measure it (b) we keep it the same (c) we change it

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