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.True or false: sunlight is needed for the leafy bag test. (a) True (b) False
- 2.⚖️ 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 keep it the same (b) we change it (c) we measure it
- 3.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) veins (b) roots (c) petals (d) stomata
- 4.True or false: a battery cell is not needed for the leafy bag test. (a) False (b) True
- 5.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) vinegar (c) a rubber band (d) sunlight
- 6.⚖️ 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) True (b) False
- 7.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) yeast (c) a potted plant (d) a battery cell
- 8.⚖️ 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) sun or shade (c) the kind of plant (d) the same kind of bag
- 9.🛟 How should the plastic bag be tied around the branch? (a) as tight as possible (b) with a hot glue gun (c) gently, not too tight (d) with sharp wire
- 10.True or false: carry water upward is a job of the stem. (a) False (b) True
- 11.True or false: make food in sunlight is a job of the flower. (a) True (b) False
- 12.🧺 Which of these is needed for the leafy bag test? (a) a few hours (b) a battery cell (c) turmeric powder (d) yeast
- 13.⚖️ 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
- 14.True or false: a battery cell is needed for the leafy bag test. (a) False (b) True
- 15.🪴 Which part of a plant does this job: make food in sunlight? (a) stem (b) roots (c) leaves (d) flower
- 16.🪴 Which of these is a job of the flower? (a) hold the plant in soil (b) carry water upward (c) make seeds (d) take in water from soil
- 17.⚖️ 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) amount of water drops (b) the size of the plant (c) the kind of plant (d) sun or shade
- 18.🪴 Which part of a plant does this job: take in water from soil? (a) roots (b) leaves (c) stem (d) flower
- 19.🧺 Do we need vinegar for the leafy bag test? (a) needed (b) not needed
- 20.True or false: sunlight is not needed for the leafy bag test. (a) True (b) False
- 21.🧺 Do we need a magnet for the leafy bag test? (a) not needed (b) needed
- 22.🧺 Which of these is needed for the leafy bag test? (a) a battery cell (b) yeast (c) a mirror (d) a rubber band
- 23.True or false: hold the plant in soil is a job of the flower. (a) False (b) True
- 24.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) yeast (b) a clear plastic bag (c) a potted plant (d) a rubber band
- 25.🧺 Do we need a potted plant for the leafy bag test? (a) needed (b) not needed
- 26.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) sunlight (c) a mirror (d) a clear plastic bag
- 27.⚖️ 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 measure it (c) we keep it the same
- 28.🪴 Which of these is a job of the stem? (a) give out water vapour (b) take in water from soil (c) carry water upward (d) hold the plant in soil
- 29.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it wilts and droops (b) it flowers more (c) it grows faster (d) it turns blue
- 30.True or false: a few hours is needed for the leafy bag test. (a) True (b) False
- 31.🛟 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
- 32.True or false: hold the plant in soil is a job of the stem. (a) False (b) True
- 33.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) a clear plastic bag (c) a magnet (d) a potted plant
- 34.True or false: turmeric powder is needed for the leafy bag test. (a) False (b) True
- 35.True or false: make food in sunlight is a job of the leaves. (a) False (b) True
- 36.🪴 Which part of a plant does this job: give out water vapour? (a) roots (b) flower (c) leaves (d) stem
- 37.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: sun or shade is kept the same. (a) True (b) False
- 38.🧺 Do we need yeast for the leafy bag test? (a) needed (b) not needed
- 39.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) both the same (b) the cool cloudy day (c) neither of them (d) the hot sunny day
- 40.🪴 Which of these is a job of the leaves? (a) hold the plant in soil (b) carry water upward (c) take in water from soil (d) make food in sunlight
Answer key
- True
- we keep it the same
- stomata
- True
- vinegar
- False
- a potted plant
- sun or shade
- gently, not too tight
- True
- False
- a few hours
- we keep it the same
- False
- leaves
- make seeds
- amount of water drops
- roots
- not needed
- False
- not needed
- a rubber band
- False
- yeast
- needed
- a mirror
- we keep it the same
- carry water upward
- it wilts and droops
- True
- it can block breathing
- False
- a magnet
- False
- True
- leaves
- False
- not needed
- the hot sunny day
- make food in sunlight
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