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.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) a potted plant (c) a magnet (d) a few hours
- 2.🧺 Do we need sunlight for the leafy bag test? (a) needed (b) not needed
- 3.🧺 Do we need a mirror for the leafy bag test? (a) needed (b) not needed
- 4.⚖️ 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) sun or shade (b) amount of water drops (c) the same kind of bag (d) the kind of plant
- 5.🛟 How should the plastic bag be tied around the branch? (a) with a hot glue gun (b) as tight as possible (c) with sharp wire (d) gently, not too tight
- 6.🪴 Which part of a plant does this job: make seeds? (a) flower (b) leaves (c) stem (d) roots
- 7.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny insects (b) tiny water drops (c) salt crystals (d) nothing at all
- 8.🧺 Do we need a magnet for the leafy bag test? (a) not needed (b) needed
- 9.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) yeast (c) a clear plastic bag (d) a potted plant
- 10.🪴 Through which part does a plant take in water from the soil? (a) the fruits (b) the flowers (c) the roots (d) the leaves
- 11.⚖️ 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
- 12.🪴 Which part of a plant does this job: make food in sunlight? (a) roots (b) stem (c) flower (d) leaves
- 13.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it wilts and droops (b) it turns blue (c) it flowers more (d) it grows faster
- 14.🪴 Which part of a plant does this job: hold up the leaves? (a) stem (b) roots (c) flower (d) leaves
- 15.🪴 Which of these is a job of the stem? (a) give out water vapour (b) hold up the leaves (c) take in water from soil (d) make food in sunlight
- 16.⚖️ 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 measure it (b) we keep it the same (c) we change it
- 17.🧺 Which of these is needed for the leafy bag test? (a) a rubber band (b) a battery cell (c) vinegar (d) turmeric powder
- 18.🧺 Do we need a rubber band for the leafy bag test? (a) needed (b) not needed
- 19.🪴 Which of these is a job of the stem? (a) take in water from soil (b) make seeds (c) give out water vapour (d) carry water upward
- 20.🧺 Do we need a potted plant for the leafy bag test? (a) not needed (b) needed
- 21.🪴 Which part of a plant does this job: give out water vapour? (a) flower (b) roots (c) stem (d) leaves
- 22.🪴 Which of these is a job of the leaves? (a) carry water upward (b) hold up the leaves (c) make seeds (d) give out water vapour
- 23.🪴 Which part of a plant does this job: hold the plant in soil? (a) roots (b) flower (c) stem (d) leaves
- 24.⚖️ 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) False (b) True
- 25.🪴 Where did the water inside the bag come from? (a) the leaves (b) the rain (c) the rubber band (d) the plastic
- 26.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a mirror (c) a potted plant (d) a rubber band
- 27.🧺 Do we need a battery cell for the leafy bag test? (a) needed (b) not needed
- 28.⚖️ 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 measure it (b) we change it (c) we keep it the same
- 29.⚖️ 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 change it (b) we keep it the same (c) we measure it
- 30.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) a magnet (c) sunlight (d) vinegar
- 31.True or false: a magnet is needed for the leafy bag test. (a) True (b) False
- 32.🧺 Which of these is not needed for the leafy bag test? (a) sunlight (b) a rubber band (c) a clear plastic bag (d) a battery cell
- 33.True or false: make seeds is a job of the stem. (a) False (b) True
- 34.True or false: a potted plant is needed for the leafy bag test. (a) True (b) False
- 35.🔮 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
- 36.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) turmeric powder (c) a magnet (d) a clear plastic bag
- 37.⚖️ 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
- 38.⚖️ 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) the size of the plant (b) amount of water drops (c) sun or shade
- 39.True or false: a magnet is not needed for the leafy bag test. (a) False (b) True
- 40.True or false: a mirror is needed for the leafy bag test. (a) False (b) True
Answer key
- a magnet
- needed
- not needed
- amount of water drops
- gently, not too tight
- flower
- tiny water drops
- not needed
- yeast
- the roots
- True
- leaves
- it wilts and droops
- stem
- hold up the leaves
- we keep it the same
- a rubber band
- needed
- carry water upward
- needed
- leaves
- give out water vapour
- roots
- True
- the leaves
- a mirror
- not needed
- we keep it the same
- we change it
- sunlight
- False
- a battery cell
- False
- True
- the hot sunny day
- a clear plastic bag
- the kind of plant
- the size of the plant
- True
- False
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