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: a rubber band is not needed for the leafy bag test. (a) False (b) True
- 2.🛟 Why must a plastic bag never go over anyone’s head? (a) it changes colour (b) it gets wet (c) it can block breathing (d) it is too big
- 3.🔮 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
- 4.⚖️ 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 change it (b) we keep it the same (c) we measure it
- 5.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) vinegar (c) a few hours (d) a potted plant
- 6.🧺 Do we need a few hours for the leafy bag test? (a) not needed (b) needed
- 7.🧺 Do we need a mirror for the leafy bag test? (a) needed (b) not needed
- 8.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) turmeric powder (c) a few hours (d) a clear plastic bag
- 9.🪴 Through which part does a plant take in water from the soil? (a) the fruits (b) the flowers (c) the roots (d) the leaves
- 10.⚖️ 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
- 11.⚖️ 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 keep it the same (b) we measure it (c) we change it
- 12.True or false: give out water vapour is a job of the leaves. (a) False (b) True
- 13.🧺 Do we need turmeric powder for the leafy bag test? (a) needed (b) not needed
- 14.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: sun or shade is what we measure. (a) False (b) True
- 15.🪴 Which part of a plant does this job: carry water upward? (a) roots (b) flower (c) leaves (d) stem
- 16.True or false: vinegar is not needed for the leafy bag test. (a) False (b) True
- 17.🧺 Which of these is needed for the leafy bag test? (a) yeast (b) turmeric powder (c) a battery cell (d) a few hours
- 18.True or false: a mirror is not needed for the leafy bag test. (a) True (b) False
- 19.🪴 Which of these is a job of the roots? (a) hold up the leaves (b) make seeds (c) hold the plant in soil (d) carry water upward
- 20.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a magnet (b) a few hours (c) a rubber band (d) sunlight
- 21.⚖️ 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 same kind of bag (b) sun or shade (c) the time we wait (d) the kind of plant
- 22.🔮 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
- 23.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny insects (b) nothing at all (c) salt crystals (d) tiny water drops
- 24.True or false: sunlight is needed for the leafy bag test. (a) True (b) False
- 25.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a mirror (b) a rubber band (c) a potted plant (d) sunlight
- 26.⚖️ 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 change it (b) we keep it the same (c) we measure it
- 27.🪴 Which part of a plant does this job: take in water from soil? (a) leaves (b) stem (c) flower (d) roots
- 28.🧺 Do we need a battery cell for the leafy bag test? (a) not needed (b) needed
- 29.🧺 Which of these is needed for the leafy bag test? (a) a rubber band (b) a battery cell (c) turmeric powder (d) a mirror
- 30.⚖️ 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) sun or shade (b) the same kind of bag (c) amount of water drops
- 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) sun or shade (b) the time we wait (c) amount of water drops
- 32.⚖️ 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
- 33.⚖️ 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 time we wait (b) amount of water drops (c) the kind of plant (d) sun or shade
- 34.🪴 Which of these is a job of the flower? (a) give out water vapour (b) take in water from soil (c) make seeds (d) hold the plant in soil
- 35.🪴 Which part of a plant does this job: give out water vapour? (a) roots (b) flower (c) leaves (d) stem
- 36.🪴 Which part of a plant does this job: hold up the leaves? (a) roots (b) flower (c) leaves (d) stem
- 37.True or false: a rubber band is needed for the leafy bag test. (a) False (b) True
- 38.🪴 Which part of a plant does this job: hold the plant in soil? (a) roots (b) flower (c) leaves (d) stem
- 39.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) stomata (b) veins (c) petals (d) roots
- 40.🧺 Which of these is needed for the leafy bag test? (a) vinegar (b) a magnet (c) a battery cell (d) a clear plastic bag
Answer key
- False
- it can block breathing
- it wilts and droops
- we keep it the same
- vinegar
- needed
- not needed
- turmeric powder
- the roots
- we keep it the same
- we keep it the same
- True
- not needed
- False
- stem
- True
- a few hours
- True
- hold the plant in soil
- a magnet
- sun or shade
- the hot sunny day
- tiny water drops
- True
- a mirror
- we measure it
- roots
- not needed
- a rubber band
- the same kind of bag
- the time we wait
- True
- amount of water drops
- make seeds
- leaves
- stem
- True
- roots
- stomata
- a clear plastic bag
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