Transpiration Experiment Worksheet
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.
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- 1.⚖️ 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 keep it the same (b) we change it (c) we measure it
- 2.⚖️ 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) False (b) True
- 3.🧺 Do we need a rubber band for the leafy bag test? (a) needed (b) not needed
- 4.🪴 Which part of a plant does this job: make seeds? (a) stem (b) roots (c) flower (d) leaves
- 5.🧺 Do we need vinegar for the leafy bag test? (a) needed (b) not needed
- 6.🪴 Which of these is a job of the roots? (a) make food in sunlight (b) give out water vapour (c) carry water upward (d) hold the plant in soil
- 7.🛟 Why must a plastic bag never go over anyone’s head? (a) it changes colour (b) it is too big (c) it can block breathing (d) it gets wet
- 8.🪴 Where did the water inside the bag come from? (a) the plastic (b) the leaves (c) the rain (d) the rubber band
- 9.🛟 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
- 10.True or false: vinegar is needed for the leafy bag test. (a) True (b) False
- 11.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) turmeric powder (c) a clear plastic bag (d) sunlight
- 12.True or false: hold up the leaves is a job of the stem. (a) False (b) True
- 13.⚖️ 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 kind of plant (b) the same kind of bag (c) amount of water drops (d) the time we wait
- 14.🪴 Which part of a plant does this job: take in water from soil? (a) flower (b) leaves (c) stem (d) roots
- 15.🧺 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) yeast (d) a potted plant
- 16.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) vinegar (c) sunlight (d) a rubber band
- 17.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: sun or shade is the one thing we change. (a) False (b) True
- 18.🧺 Which of these is not needed for the leafy bag test? (a) a few hours (b) a rubber band (c) turmeric powder (d) a potted plant
- 19.🪴 Which part of a plant does this job: make food in sunlight? (a) flower (b) leaves (c) roots (d) stem
- 20.🧺 Do we need sunlight for the leafy bag test? (a) not needed (b) needed
- 21.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) it fills with soil (b) much more water (c) exactly the same (d) much less water
- 22.⚖️ 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
- 23.🪴 Which part of a plant does this job: give out water vapour? (a) stem (b) roots (c) flower (d) leaves
- 24.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) vinegar (c) a magnet (d) a rubber band
- 25.🧺 Do we need a potted plant for the leafy bag test? (a) needed (b) not needed
- 26.True or false: a clear plastic bag is needed for the leafy bag test. (a) False (b) True
- 27.⚖️ 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 kept the same. (a) True (b) False
- 28.🪴 Which of these is a job of the leaves? (a) carry water upward (b) make food in sunlight (c) take in water from soil (d) hold up the leaves
- 29.🧺 Which of these is needed for the leafy bag test? (a) a clear plastic bag (b) a magnet (c) turmeric powder (d) a mirror
- 30.🪴 Which of these is a job of the leaves? (a) make seeds (b) give out water vapour (c) take in water from soil (d) hold the plant in soil
- 31.⚖️ 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) True (b) False
- 32.🧺 Which of these is needed for the leafy bag test? (a) a potted plant (b) a mirror (c) yeast (d) turmeric powder
- 33.🧺 Which of these is needed for the leafy bag test? (a) a battery cell (b) turmeric powder (c) sunlight (d) a magnet
- 34.True or false: a battery cell is not needed for the leafy bag test. (a) True (b) False
- 35.🪴 Which of these is a job of the flower? (a) make seeds (b) hold the plant in soil (c) carry water upward (d) take in water from soil
- 36.True or false: make food in sunlight is a job of the leaves. (a) False (b) True
- 37.🧺 Which of these is not needed for the leafy bag test? (a) yeast (b) sunlight (c) a potted plant (d) a few hours
- 38.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it flowers more (b) it grows faster (c) it turns blue (d) it wilts and droops
- 39.⚖️ 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) True (b) False
- 40.🧺 Which of these is not needed for the leafy bag test? (a) a rubber band (b) a mirror (c) sunlight (d) a clear plastic bag
Answer key
- we keep it the same
- False
- needed
- flower
- not needed
- hold the plant in soil
- it can block breathing
- the leaves
- gently, not too tight
- False
- turmeric powder
- True
- amount of water drops
- roots
- yeast
- vinegar
- True
- turmeric powder
- leaves
- needed
- much less water
- True
- leaves
- a rubber band
- needed
- True
- True
- make food in sunlight
- a clear plastic bag
- give out water vapour
- False
- a potted plant
- sunlight
- True
- make seeds
- True
- yeast
- it wilts and droops
- False
- a mirror
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