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: give out water vapour is a job of the leaves. (a) False (b) True
- 2.🪴 Which part of a plant does this job: take in water from soil? (a) flower (b) leaves (c) roots (d) stem
- 3.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) vinegar (c) yeast (d) a potted plant
- 4.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) neither of them (b) the hot sunny day (c) both the same (d) the cool cloudy day
- 5.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a mirror (b) a rubber band (c) a few hours (d) sunlight
- 6.🪴 Which of these is a job of the leaves? (a) take in water from soil (b) carry water upward (c) make food in sunlight (d) hold the plant in soil
- 7.⚖️ 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 time we wait (b) amount of water drops (c) sun or shade
- 8.🪴 Which of these is a job of the stem? (a) make food in sunlight (b) hold the plant in soil (c) give out water vapour (d) hold up the leaves
- 9.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) turmeric powder (c) a magnet (d) a few hours
- 10.⚖️ 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) True (b) False
- 11.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) it fills with soil (b) much more water (c) exactly the same (d) much less water
- 12.⚖️ 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 kind of plant (b) sun or shade (c) amount of water drops (d) the same kind of bag
- 13.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a battery cell (b) a few hours (c) a potted plant (d) a rubber band
- 14.🪴 Which part of a plant does this job: hold the plant in soil? (a) leaves (b) flower (c) roots (d) stem
- 15.⚖️ 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 what we measure. (a) True (b) False
- 16.⚖️ 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
- 17.⚖️ 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
- 18.⚖️ 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) amount of water drops (b) the time we wait (c) the size of the plant (d) sun or shade
- 19.🧺 Do we need turmeric powder for the leafy bag test? (a) not needed (b) needed
- 20.🪴 Where did the water inside the bag come from? (a) the rain (b) the plastic (c) the leaves (d) the rubber band
- 21.🛟 Why must a plastic bag never go over anyone’s head? (a) it gets wet (b) it is too big (c) it changes colour (d) it can block breathing
- 22.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) roots (b) petals (c) stomata (d) veins
- 23.🧺 Do we need yeast for the leafy bag test? (a) not needed (b) needed
- 24.🧺 Do we need a mirror for the leafy bag test? (a) not needed (b) needed
- 25.True or false: hold the plant in soil is a job of the roots. (a) False (b) True
- 26.🧺 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) turmeric powder
- 27.🪴 Which of these is a job of the roots? (a) take in water from soil (b) carry water upward (c) make food in sunlight (d) make seeds
- 28.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it flowers more (b) it turns blue (c) it wilts and droops (d) it grows faster
- 29.🪴 Which of these is a job of the leaves? (a) hold up the leaves (b) give out water vapour (c) hold the plant in soil (d) carry water upward
- 30.🪴 Which of these is a job of the flower? (a) make seeds (b) take in water from soil (c) carry water upward (d) give out water vapour
- 31.⚖️ 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 measure it (c) we keep it the same
- 32.🪴 Which part of a plant does this job: make food in sunlight? (a) roots (b) stem (c) leaves (d) flower
- 33.True or false: a potted plant is not needed for the leafy bag test. (a) False (b) True
- 34.🪴 Which part of a plant does this job: make seeds? (a) flower (b) leaves (c) roots (d) stem
- 35.True or false: hold up the leaves is a job of the roots. (a) True (b) False
- 36.⚖️ 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) False (b) True
- 37.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) yeast (c) a few hours (d) a potted 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) sun or shade (b) the kind of plant (c) amount of water drops
- 39.True or false: yeast is needed for the leafy bag test. (a) True (b) False
- 40.🪴 Which part of a plant does this job: carry water upward? (a) roots (b) flower (c) leaves (d) stem
Answer key
- True
- roots
- a potted plant
- the hot sunny day
- a mirror
- make food in sunlight
- the time we wait
- hold up the leaves
- a few hours
- False
- much less water
- amount of water drops
- a battery cell
- roots
- False
- we keep it the same
- we keep it the same
- sun or shade
- not needed
- the leaves
- it can block breathing
- stomata
- not needed
- not needed
- True
- turmeric powder
- take in water from soil
- it wilts and droops
- give out water vapour
- make seeds
- we keep it the same
- leaves
- False
- flower
- False
- False
- yeast
- the kind of plant
- False
- stem
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