Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 50 · 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.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) sunlight (c) a few hours (d) a mirror
2. 2.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) the hot sunny day (b) neither of them (c) the cool cloudy day (d) both the same
3. 3.⚖️ 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 measure it (c) we change it
4. 4.⚖️ 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
5. 5.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) vinegar (c) sunlight (d) a magnet
6. 6.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a few hours (c) a clear plastic bag (d) a magnet
7. 7.🪴 Where did the water inside the bag come from? (a) the rain (b) the leaves (c) the plastic (d) the rubber band
8. 8.🛟 How should the plastic bag be tied around the branch? (a) gently, not too tight (b) as tight as possible (c) with sharp wire (d) with a hot glue gun
9. 9.🧺 Which of these is not needed for the leafy bag test? (a) vinegar (b) a potted plant (c) a clear plastic bag (d) a rubber band
10. 10.🧺 Do we need turmeric powder for the leafy bag test? (a) needed (b) not needed
11. 11.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) exactly the same (b) much more water (c) much less water (d) it fills with soil
12. 12.True or false: a clear plastic bag is not needed for the leafy bag test. (a) True (b) False
13. 13.True or false: a clear plastic bag is needed for the leafy bag test. (a) True (b) False
14. 14.⚖️ 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 the one thing we change. (a) True (b) False
15. 15.⚖️ 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 measure it (b) we change it (c) we keep it the same
16. 16.⚖️ 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 kind of plant (c) the size of the plant (d) amount of water drops
17. 17.🪴 Which part of a plant does this job: hold the plant in soil? (a) stem (b) flower (c) leaves (d) roots
18. 18.🪴 Which of these is a job of the leaves? (a) make seeds (b) hold the plant in soil (c) hold up the leaves (d) make food in sunlight
19. 19.⚖️ 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
20. 20.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) petals (b) veins (c) roots (d) stomata
21. 21.🪴 Which part of a plant does this job: give out water vapour? (a) flower (b) roots (c) stem (d) leaves
22. 22.🧺 Do we need vinegar for the leafy bag test? (a) not needed (b) needed
23. 23.🛟 Why must a plastic bag never go over anyone’s head? (a) it changes colour (b) it gets wet (c) it can block breathing (d) it is too big
24. 24.True or false: hold the plant in soil is a job of the leaves. (a) True (b) False
25. 25.True or false: a few hours is not needed for the leafy bag test. (a) True (b) False
26. 26.🪴 Which of these is a job of the roots? (a) carry water upward (b) make food in sunlight (c) make seeds (d) hold the plant in soil
27. 27.🪴 Which of these is a job of the stem? (a) make food in sunlight (b) make seeds (c) take in water from soil (d) carry water upward
28. 28.⚖️ 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
29. 29.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a mirror (c) a potted plant (d) a few hours
30. 30.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny insects (b) nothing at all (c) salt crystals (d) tiny water drops
31. 31.🪴 Through which part does a plant take in water from the soil? (a) the fruits (b) the flowers (c) the leaves (d) the roots
32. 32.True or false: make food in sunlight is a job of the leaves. (a) False (b) True
33. 33.🧺 Which of these is not needed for the leafy bag test? (a) sunlight (b) a clear plastic bag (c) a battery cell (d) a potted plant
34. 34.🪴 Which of these is a job of the roots? (a) take in water from soil (b) hold up the leaves (c) carry water upward (d) give out water vapour
35. 35.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) turmeric powder (c) a mirror (d) a potted plant
36. 36.🔮 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
37. 37.True or false: a potted plant is needed for the leafy bag test. (a) False (b) True
38. 38.True or false: give out water vapour is a job of the leaves. (a) True (b) False
39. 39.⚖️ 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
40. 40.🧺 Do we need a magnet for the leafy bag test? (a) not needed (b) needed

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