Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 125 · 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.⚖️ 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 change it (b) we measure it (c) we keep it the same
2. 2.True or false: a clear plastic bag is needed for the leafy bag test. (a) True (b) False
3. 3.🛟 Why must a plastic bag never go over anyone’s head? (a) it changes colour (b) it can block breathing (c) it gets wet (d) it is too big
4. 4.True or false: make food in sunlight is a job of the leaves. (a) False (b) True
5. 5.🪴 Which of these is a job of the leaves? (a) hold up the leaves (b) hold the plant in soil (c) make seeds (d) make food in sunlight
6. 6.⚖️ 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
7. 7.🪴 Which of these is a job of the roots? (a) make seeds (b) hold the plant in soil (c) carry water upward (d) give out water vapour
8. 8.🛟 How should the plastic bag be tied around the branch? (a) as tight as possible (b) with a hot glue gun (c) gently, not too tight (d) with sharp wire
9. 9.⚖️ 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
10. 10.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) a magnet (c) sunlight (d) a few hours
11. 11.True or false: a mirror is needed for the leafy bag test. (a) True (b) False
12. 12.⚖️ 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) the time we wait (b) sun or shade (c) amount of water drops (d) the same kind of bag
13. 13.⚖️ 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
14. 14.True or false: carry water upward is a job of the leaves. (a) True (b) False
15. 15.🧺 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 rubber band
16. 16.🔮 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
17. 17.🔮 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
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 same kind of bag”? (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 kind of plant (b) amount of water drops (c) sun or shade (d) the time we wait
20. 20.🧺 Which of these is needed for the leafy bag test? (a) a potted plant (b) yeast (c) vinegar (d) a battery cell
21. 21.True or false: turmeric powder is needed for the leafy bag test. (a) True (b) False
22. 22.🧺 Do we need a few hours for the leafy bag test? (a) not needed (b) needed
23. 23.⚖️ 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) False (b) True
24. 24.True or false: a few hours is not needed for the leafy bag test. (a) False (b) True
25. 25.🧺 Do we need a potted plant for the leafy bag test? (a) needed (b) not needed
26. 26.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) neither of them (b) the hot sunny day (c) the cool cloudy day (d) both the same
27. 27.🪴 Which part of a plant does this job: give out water vapour? (a) stem (b) flower (c) leaves (d) roots
28. 28.🪴 Which of these is a job of the flower? (a) make seeds (b) hold up the leaves (c) carry water upward (d) make food in sunlight
29. 29.🧺 Which of these is needed for the leafy bag test? (a) yeast (b) a battery cell (c) a rubber band (d) a mirror
30. 30.📘 What do we call plants giving out water vapour from their leaves? (a) digestion (b) germination (c) transpiration (d) reflection
31. 31.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) salt crystals (b) tiny water drops (c) nothing at all (d) tiny insects
32. 32.🪴 Which of these is a job of the stem? (a) take in water from soil (b) make seeds (c) hold up the leaves (d) hold the plant in soil
33. 33.🧺 Do we need a mirror for the leafy bag test? (a) needed (b) not needed
34. 34.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a rubber band (c) turmeric powder (d) a potted plant
35. 35.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) roots (b) petals (c) stomata (d) veins
36. 36.True or false: carry water upward is a job of the flower. (a) False (b) True
37. 37.🪴 Through which part does a plant take in water from the soil? (a) the roots (b) the flowers (c) the fruits (d) the leaves
38. 38.⚖️ 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 keep it the same (b) we change it (c) we measure it
39. 39.🪴 Which of these is a job of the roots? (a) take in water from soil (b) carry water upward (c) give out water vapour (d) hold up the leaves
40. 40.🪴 Where did the water inside the bag come from? (a) the leaves (b) the plastic (c) the rubber band (d) the rain

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