Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 48 · 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) turmeric powder (b) sunlight (c) a battery cell (d) a mirror
2. 2.📘 What do we call plants giving out water vapour from their leaves? (a) germination (b) digestion (c) reflection (d) transpiration
3. 3.🪴 Where did the water inside the bag come from? (a) the leaves (b) the plastic (c) the rubber band (d) the rain
4. 4.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) a rubber band (c) a battery cell (d) sunlight
5. 5.🧺 Do we need a potted plant for the leafy bag test? (a) needed (b) not needed
6. 6.🛟 How should the plastic bag be tied around the branch? (a) with a hot glue gun (b) with sharp wire (c) as tight as possible (d) gently, not too tight
7. 7.True or false: take in water from soil is a job of the roots. (a) False (b) True
8. 8.True or false: hold the plant in soil is a job of the roots. (a) True (b) False
9. 9.⚖️ 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 measure it (c) we change it
10. 10.🪴 Which of these is a job of the roots? (a) hold up the leaves (b) take in water from soil (c) give out water vapour (d) make food in sunlight
11. 11.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) neither of them (b) the cool cloudy day (c) the hot sunny day (d) both the same
12. 12.⚖️ 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
13. 13.⚖️ 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
14. 14.⚖️ 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) amount of water drops (b) sun or shade (c) the same kind of bag (d) the kind of plant
15. 15.🪴 Which of these is a job of the leaves? (a) take in water from soil (b) make seeds (c) make food in sunlight (d) carry water upward
16. 16.🧺 Do we need a clear plastic bag for the leafy bag test? (a) needed (b) not needed
17. 17.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it turns blue (b) it flowers more (c) it wilts and droops (d) it grows faster
18. 18.🧺 Do we need yeast for the leafy bag test? (a) needed (b) not needed
19. 19.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) a few hours (c) a potted plant (d) a mirror
20. 20.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) veins (b) stomata (c) roots (d) petals
21. 21.True or false: vinegar is needed for the leafy bag test. (a) False (b) True
22. 22.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) salt crystals (b) nothing at all (c) tiny insects (d) tiny water drops
23. 23.True or false: carry water upward is a job of the stem. (a) False (b) True
24. 24.🪴 Through which part does a plant take in water from the soil? (a) the leaves (b) the roots (c) the flowers (d) the fruits
25. 25.🧺 Which of these is needed for the leafy bag test? (a) vinegar (b) a rubber band (c) yeast (d) a magnet
26. 26.⚖️ 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
27. 27.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) turmeric powder (c) a rubber band (d) a potted plant
28. 28.True or false: a mirror is not needed for the leafy bag test. (a) False (b) True
29. 29.True or false: a battery cell is not needed for the leafy bag test. (a) True (b) False
30. 30.🛟 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
31. 31.🪴 Which part of a plant does this job: carry water upward? (a) stem (b) flower (c) roots (d) leaves
32. 32.🔮 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
33. 33.⚖️ 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 the one thing we change. (a) False (b) True
34. 34.⚖️ 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
35. 35.True or false: a magnet is needed for the leafy bag test. (a) True (b) False
36. 36.⚖️ 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
37. 37.True or false: carry water upward is a job of the flower. (a) False (b) True
38. 38.🪴 Which part of a plant does this job: hold up the leaves? (a) leaves (b) flower (c) stem (d) roots
39. 39.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a magnet (c) a potted plant (d) a few hours
40. 40.True or false: yeast is needed for the leafy bag test. (a) True (b) False

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