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