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 rubber band (b) a clear plastic bag (c) yeast (d) a few hours
- 2.True or false: take in water from soil is a job of the flower. (a) False (b) True
- 3.🪴 Which part of a plant does this job: give out water vapour? (a) roots (b) flower (c) stem (d) leaves
- 4.⚖️ 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 kept the same. (a) False (b) True
- 5.True or false: give out water vapour is a job of the flower. (a) True (b) False
- 6.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) the cool cloudy day (b) both the same (c) the hot sunny day (d) neither of them
- 7.🪴 Which part of a plant does this job: hold up the leaves? (a) roots (b) stem (c) leaves (d) flower
- 8.⚖️ 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 size of the plant
- 9.🪴 Which of these is a job of the roots? (a) carry water upward (b) make food in sunlight (c) hold up the leaves (d) take in water from soil
- 10.🪴 Where did the water inside the bag come from? (a) the rain (b) the rubber band (c) the plastic (d) the leaves
- 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 change it (b) we keep it the same (c) we measure it
- 12.🧺 Do we need yeast for the leafy bag test? (a) not needed (b) needed
- 13.True or false: turmeric powder is not needed for the leafy bag test. (a) False (b) True
- 14.🪴 Which of these is a job of the flower? (a) take in water from soil (b) hold the plant in soil (c) hold up the leaves (d) make seeds
- 15.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny water drops (b) tiny insects (c) nothing at all (d) salt crystals
- 16.⚖️ 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) the size of the plant (c) amount of water drops (d) the kind of plant
- 17.🛟 Why must a plastic bag never go over anyone’s head? (a) it can block breathing (b) it gets wet (c) it changes colour (d) it is too big
- 18.📘 What do we call plants giving out water vapour from their leaves? (a) reflection (b) germination (c) transpiration (d) digestion
- 19.🔮 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
- 20.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) yeast (c) a potted plant (d) vinegar
- 21.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: amount of water drops is the one thing we change. (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) sunlight (d) vinegar
- 23.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) a clear plastic bag (c) a rubber band (d) turmeric powder
- 24.🧺 Which of these is not needed for the leafy bag test? (a) sunlight (b) a battery cell (c) a few hours (d) a potted plant
- 25.🧺 Do we need a magnet 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) sunlight (b) a few hours (c) a magnet (d) a clear plastic bag
- 27.🪴 Which part of a plant does this job: carry water upward? (a) flower (b) roots (c) leaves (d) stem
- 28.🪴 Which part of a plant does this job: take in water from soil? (a) roots (b) stem (c) flower (d) leaves
- 29.🪴 Which of these is a job of the stem? (a) hold the plant in soil (b) take in water from soil (c) make seeds (d) carry water upward
- 30.⚖️ 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 the one thing we change. (a) False (b) True
- 31.⚖️ 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 measure it (b) we change it (c) we keep it the same
- 32.⚖️ 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) False (b) True
- 33.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) sunlight (c) a clear plastic bag (d) a mirror
- 34.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) veins (b) roots (c) stomata (d) petals
- 35.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) a rubber band (c) sunlight (d) a battery cell
- 36.🪴 Which part of a plant does this job: make food in sunlight? (a) roots (b) stem (c) leaves (d) flower
- 37.⚖️ 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
- 38.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) a magnet (c) a battery cell (d) a few hours
- 39.🪴 Through which part does a plant take in water from the soil? (a) the roots (b) the fruits (c) the flowers (d) the leaves
- 40.True or false: turmeric powder is needed for the leafy bag test. (a) True (b) False
Answer key
- yeast
- False
- leaves
- True
- False
- the hot sunny day
- stem
- the size of the plant
- take in water from soil
- the leaves
- we keep it the same
- not needed
- True
- make seeds
- tiny water drops
- amount of water drops
- it can block breathing
- transpiration
- it wilts and droops
- a potted plant
- False
- vinegar
- turmeric powder
- a battery cell
- not needed
- a magnet
- stem
- roots
- carry water upward
- False
- we keep it the same
- False
- a mirror
- stomata
- a battery cell
- leaves
- True
- a few hours
- the roots
- False
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