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.⚖️ 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 keep it the same (c) we measure it
- 2.🪴 Which of these is a job of the flower? (a) hold the plant in soil (b) make seeds (c) give out water vapour (d) take in water from soil
- 3.🪴 Which of these is a job of the leaves? (a) make seeds (b) hold up the leaves (c) give out water vapour (d) hold the plant in soil
- 4.True or false: vinegar is not needed for the leafy bag test. (a) False (b) True
- 5.True or false: a rubber band is needed for the leafy bag test. (a) False (b) True
- 6.🛟 Why must a plastic bag never go over anyone’s head? (a) it is too big (b) it gets wet (c) it changes colour (d) it can block breathing
- 7.⚖️ 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
- 8.🪴 Which part of a plant does this job: carry water upward? (a) roots (b) flower (c) leaves (d) stem
- 9.🪴 Which of these is a job of the roots? (a) make seeds (b) hold up the leaves (c) take in water from soil (d) carry water upward
- 10.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a clear plastic bag (c) a potted plant (d) yeast
- 11.True or false: take in water from soil is a job of the roots. (a) True (b) False
- 12.🪴 Which part of a plant does this job: hold up the leaves? (a) roots (b) leaves (c) stem (d) flower
- 13.⚖️ 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) True (b) False
- 14.🧺 Do we need a battery cell for the leafy bag test? (a) needed (b) not needed
- 15.⚖️ 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) amount of water drops (b) the kind of plant (c) the time we wait (d) sun or shade
- 16.🔮 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) neither of them (d) the hot sunny day
- 17.⚖️ 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) the kind of plant (c) sun or shade (d) amount of water drops
- 18.⚖️ 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
- 19.🪴 Which part of a plant does this job: take in water from soil? (a) roots (b) leaves (c) stem (d) flower
- 20.True or false: sunlight is needed for the leafy bag test. (a) True (b) False
- 21.🪴 Which of these is a job of the stem? (a) hold the plant in soil (b) make seeds (c) hold up the leaves (d) make food in sunlight
- 22.True or false: give out water vapour is a job of the flower. (a) True (b) False
- 23.⚖️ 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 same kind of bag
- 24.🪴 Which part of a plant does this job: give out water vapour? (a) roots (b) stem (c) leaves (d) flower
- 25.🪴 Which of these is a job of the roots? (a) hold the plant in soil (b) hold up the leaves (c) carry water upward (d) make seeds
- 26.🪴 Which part of a plant does this job: make seeds? (a) leaves (b) stem (c) flower (d) roots
- 27.🧺 Which of these is not needed for the leafy bag test? (a) a rubber band (b) a potted plant (c) sunlight (d) a battery cell
- 28.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) a potted plant (c) a mirror (d) a few hours
- 29.🧺 Do we need yeast for the leafy bag test? (a) needed (b) not needed
- 30.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a battery cell (b) a rubber band (c) a few hours (d) a potted plant
- 31.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) veins (b) stomata (c) roots (d) petals
- 32.📘 What do we call plants giving out water vapour from their leaves? (a) germination (b) reflection (c) transpiration (d) digestion
- 33.🪴 Which of these is a job of the stem? (a) carry water upward (b) make food in sunlight (c) take in water from soil (d) give out water vapour
- 34.🧺 Do we need sunlight for the leafy bag test? (a) needed (b) not needed
- 35.🧺 Do we need a few hours for the leafy bag test? (a) needed (b) not needed
- 36.🪴 Which part of a plant does this job: hold the plant in soil? (a) stem (b) flower (c) roots (d) leaves
- 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) sun or shade (b) the time we wait (c) amount of water drops
- 38.True or false: give out water vapour is a job of the leaves. (a) False (b) True
- 39.True or false: make food in sunlight is a job of the roots. (a) False (b) True
- 40.⚖️ 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
Answer key
- we keep it the same
- make seeds
- give out water vapour
- True
- True
- it can block breathing
- we keep it the same
- stem
- take in water from soil
- yeast
- True
- stem
- False
- not needed
- amount of water drops
- the hot sunny day
- sun or shade
- we keep it the same
- roots
- True
- hold up the leaves
- False
- the same kind of bag
- leaves
- hold the plant in soil
- flower
- a battery cell
- a mirror
- not needed
- a battery cell
- stomata
- transpiration
- carry water upward
- needed
- needed
- roots
- the time we wait
- True
- False
- True
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