Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 195 · 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: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) the hot sunny day (b) the cool cloudy day (c) both the same (d) neither of them
2. 2.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny insects (b) salt crystals (c) tiny water drops (d) nothing at all
3. 3.True or false: hold the plant in soil is a job of the roots. (a) True (b) False
4. 4.True or false: vinegar is not needed for the leafy bag test. (a) True (b) False
5. 5.🪴 Which of these is a job of the flower? (a) hold up the leaves (b) give out water vapour (c) make seeds (d) take in water from soil
6. 6.🧺 Do we need a few hours for the leafy bag test? (a) not needed (b) needed
7. 7.🪴 Which of these is a job of the roots? (a) make seeds (b) hold the plant in soil (c) make food in sunlight (d) hold up the leaves
8. 8.⚖️ 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 measure it (b) we keep it the same (c) we change it
9. 9.⚖️ 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 change it (c) we keep it the same
10. 10.True or false: hold up the leaves is a job of the stem. (a) False (b) True
11. 11.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) it fills with soil (b) much less water (c) exactly the same (d) much more water
12. 12.⚖️ 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 keep it the same (c) we measure it
13. 13.🪴 Which part of a plant does this job: hold up the leaves? (a) stem (b) roots (c) flower (d) leaves
14. 14.True or false: take in water from soil is a job of the roots. (a) True (b) False
15. 15.🧺 Do we need a potted plant for the leafy bag test? (a) not needed (b) needed
16. 16.True or false: sunlight is needed for the leafy bag test. (a) True (b) False
17. 17.🛟 How should the plastic bag be tied around the branch? (a) with a hot glue gun (b) gently, not too tight (c) as tight as possible (d) with sharp wire
18. 18.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a few hours (c) sunlight (d) a mirror
19. 19.🛟 Why must a plastic bag never go over anyone’s head? (a) it gets wet (b) it can block breathing (c) it changes colour (d) it is too big
20. 20.True or false: vinegar is needed for the leafy bag test. (a) True (b) False
21. 21.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a few hours (c) sunlight (d) turmeric powder
22. 22.⚖️ 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 time we wait (b) sun or shade (c) amount of water drops
23. 23.⚖️ 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) amount of water drops (c) the size of the plant (d) the same kind of bag
24. 24.🪴 Which of these is a job of the roots? (a) make seeds (b) take in water from soil (c) make food in sunlight (d) give out water vapour
25. 25.⚖️ 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 the one thing we change. (a) True (b) False
26. 26.🪴 Where did the water inside the bag come from? (a) the rain (b) the rubber band (c) the leaves (d) the plastic
27. 27.🔮 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
28. 28.🧺 Which of these is needed for the leafy bag test? (a) a battery cell (b) a few hours (c) yeast (d) turmeric powder
29. 29.⚖️ 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 kind of plant (c) the time we wait (d) the size of the plant
30. 30.True or false: a clear plastic bag is not needed for the leafy bag test. (a) False (b) True
31. 31.🧺 Which of these is needed for the leafy bag test? (a) yeast (b) a mirror (c) sunlight (d) a battery cell
32. 32.True or false: sunlight is not needed for the leafy bag test. (a) True (b) False
33. 33.True or false: a potted plant is needed for the leafy bag test. (a) True (b) False
34. 34.🧺 Do we need vinegar for the leafy bag test? (a) needed (b) not needed
35. 35.⚖️ 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
36. 36.⚖️ 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) amount of water drops (b) sun or shade (c) the same kind of bag
37. 37.🧺 Do we need sunlight for the leafy bag test? (a) needed (b) not needed
38. 38.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) a battery cell (c) vinegar (d) a potted plant
39. 39.🪴 Which of these is a job of the leaves? (a) hold up the leaves (b) make seeds (c) hold the plant in soil (d) give out water vapour
40. 40.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) veins (b) petals (c) roots (d) stomata

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