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