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.🛟 How should the plastic bag be tied around the branch? (a) with sharp wire (b) with a hot glue gun (c) gently, not too tight (d) as tight as possible
- 2.🪴 Which of these is a job of the leaves? (a) hold up the leaves (b) hold the plant in soil (c) carry water upward (d) make food in sunlight
- 3.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) yeast (b) a potted plant (c) sunlight (d) a rubber band
- 4.True or false: a mirror is needed for the leafy bag test. (a) False (b) True
- 5.🧺 Do we need a few hours for the leafy bag test? (a) not needed (b) needed
- 6.True or false: vinegar is needed for the leafy bag test. (a) True (b) False
- 7.🧺 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) vinegar
- 8.True or false: make food in sunlight is a job of the flower. (a) False (b) True
- 9.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a mirror (c) a clear plastic bag (d) a potted plant
- 10.🛟 Why must a plastic bag never go over anyone’s head? (a) it changes colour (b) it gets wet (c) it is too big (d) it can block breathing
- 11.🪴 Which part of a plant does this job: give out water vapour? (a) roots (b) stem (c) flower (d) leaves
- 12.🪴 Which part of a plant does this job: hold the plant in soil? (a) roots (b) flower (c) stem (d) leaves
- 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) False (b) True
- 14.True or false: take in water from soil is a job of the roots. (a) True (b) False
- 15.🪴 Where did the water inside the bag come from? (a) the rain (b) the plastic (c) the rubber band (d) the leaves
- 16.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much more water (b) exactly the same (c) much less water (d) it fills with soil
- 17.🧺 Do we need sunlight for the leafy bag test? (a) not needed (b) needed
- 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) sun or shade (b) the same kind of bag (c) the size of the plant (d) the kind of plant
- 19.True or false: a clear plastic bag is not needed for the leafy bag test. (a) True (b) False
- 20.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) sunlight (c) a rubber band (d) a battery cell
- 21.⚖️ 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) False (b) True
- 22.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) a clear plastic bag (c) a few hours (d) a magnet
- 23.🧺 Which of these is needed for the leafy bag test? (a) sunlight (b) a magnet (c) turmeric powder (d) vinegar
- 24.🧺 Do we need a clear plastic bag for the leafy bag test? (a) needed (b) not needed
- 25.🪴 Which of these is a job of the flower? (a) make seeds (b) hold up the leaves (c) make food in sunlight (d) carry water upward
- 26.📘 What do we call plants giving out water vapour from their leaves? (a) transpiration (b) digestion (c) reflection (d) germination
- 27.🪴 Which part of a plant does this job: hold up the leaves? (a) stem (b) roots (c) leaves (d) flower
- 28.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) yeast (c) a clear plastic bag (d) vinegar
- 29.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) turmeric powder (c) sunlight (d) a rubber band
- 30.⚖️ 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 time we wait (c) sun or shade (d) amount of water drops
- 31.🪴 Which of these is a job of the roots? (a) make seeds (b) take in water from soil (c) hold up the leaves (d) carry water upward
- 32.🧺 Which of these is not needed for the leafy bag test? (a) yeast (b) a potted plant (c) a rubber band (d) a clear plastic bag
- 33.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) petals (b) veins (c) stomata (d) roots
- 34.🧺 Do we need a magnet for the leafy bag test? (a) needed (b) not needed
- 35.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) turmeric powder (c) yeast (d) a potted plant
- 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.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) both the same (b) the hot sunny day (c) neither of them (d) the cool cloudy day
- 38.True or false: a clear plastic bag is needed for the leafy bag test. (a) False (b) True
- 39.⚖️ 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
- 40.⚖️ 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
Answer key
- gently, not too tight
- make food in sunlight
- yeast
- False
- needed
- False
- vinegar
- False
- a mirror
- it can block breathing
- leaves
- roots
- True
- True
- the leaves
- much less water
- needed
- sun or shade
- False
- a battery cell
- True
- a magnet
- sunlight
- needed
- make seeds
- transpiration
- stem
- a clear plastic bag
- turmeric powder
- amount of water drops
- take in water from soil
- yeast
- stomata
- not needed
- a potted plant
- the same kind of bag
- the hot sunny day
- True
- we measure it
- we keep it the same
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