Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 190 · 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 needed for the leafy bag test? (a) a mirror (b) turmeric powder (c) a potted plant (d) a battery cell
2. 2.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much less water (b) much more water (c) exactly the same (d) it fills with soil
3. 3.⚖️ 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 keep it the same (c) we measure it
4. 4.True or false: a clear plastic bag is needed for the leafy bag test. (a) False (b) True
5. 5.⚖️ 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 keep it the same (c) we measure it
6. 6.⚖️ 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 keep it the same (b) we measure it (c) we change it
7. 7.True or false: a rubber band is not needed for the leafy bag test. (a) True (b) False
8. 8.🪴 Which part of a plant does this job: give out water vapour? (a) stem (b) leaves (c) roots (d) flower
9. 9.True or false: sunlight is needed for the leafy bag test. (a) True (b) False
10. 10.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) a potted plant (c) turmeric powder (d) sunlight
11. 11.True or false: hold the plant in soil is a job of the stem. (a) True (b) False
12. 12.⚖️ 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
13. 13.🧺 Which of these is not needed for the leafy bag test? (a) sunlight (b) a few hours (c) a battery cell (d) a potted plant
14. 14.True or false: give out water vapour is a job of the flower. (a) False (b) True
15. 15.🛟 Why must a plastic bag never go over anyone’s head? (a) it can block breathing (b) it changes colour (c) it is too big (d) it gets wet
16. 16.True or false: a few hours is needed for the leafy bag test. (a) False (b) True
17. 17.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it flowers more (b) it wilts and droops (c) it grows faster (d) it turns blue
18. 18.⚖️ 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 time we wait (b) the size of the plant (c) the kind of plant (d) sun or shade
19. 19.True or false: a rubber band is needed for the leafy bag test. (a) False (b) True
20. 20.🪴 Where did the water inside the bag come from? (a) the leaves (b) the rain (c) the rubber band (d) the plastic
21. 21.🪴 Which part of a plant does this job: hold the plant in soil? (a) flower (b) roots (c) leaves (d) stem
22. 22.True or false: give out water vapour is a job of the roots. (a) True (b) False
23. 23.True or false: make seeds is a job of the roots. (a) True (b) False
24. 24.🛟 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
25. 25.⚖️ 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 kept the same. (a) False (b) True
26. 26.⚖️ 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
27. 27.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) the cool cloudy day (b) the hot sunny day (c) both the same (d) neither of them
28. 28.True or false: turmeric powder is needed for the leafy bag test. (a) False (b) True
29. 29.🧺 Do we need a mirror for the leafy bag test? (a) not needed (b) needed
30. 30.🧺 Do we need a rubber band for the leafy bag test? (a) needed (b) not needed
31. 31.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a potted plant (c) a mirror (d) a clear plastic bag
32. 32.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) yeast (c) sunlight (d) a few hours
33. 33.🧺 Do we need a few hours for the leafy bag test? (a) needed (b) not needed
34. 34.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny water drops (b) nothing at all (c) salt crystals (d) tiny insects
35. 35.🧺 Do we need a potted plant for the leafy bag test? (a) needed (b) not needed
36. 36.⚖️ 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 what we measure. (a) True (b) False
37. 37.🧺 Do we need turmeric powder for the leafy bag test? (a) not needed (b) needed
38. 38.🪴 Which part of a plant does this job: carry water upward? (a) leaves (b) flower (c) stem (d) roots
39. 39.True or false: make seeds is a job of the flower. (a) True (b) False
40. 40.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) petals (b) veins (c) roots (d) stomata

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