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 needed for the leafy bag test. (a) False (b) True
- 2.⚖️ 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) sun or shade (b) the size of the plant (c) the same kind of bag (d) amount of water drops
- 3.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a potted plant (c) a clear plastic bag (d) a mirror
- 4.True or false: take in water from soil is a job of the flower. (a) False (b) True
- 5.🛟 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
- 6.🧺 Which of these is needed for the leafy bag test? (a) a rubber band (b) a battery cell (c) vinegar (d) a magnet
- 7.🪴 Which of these is a job of the flower? (a) carry water upward (b) give out water vapour (c) make seeds (d) take in water from soil
- 8.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it wilts and droops (b) it turns blue (c) it grows faster (d) it flowers more
- 9.🧺 Which of these is not needed for the leafy bag test? (a) sunlight (b) a clear plastic bag (c) a mirror (d) a potted plant
- 10.True or false: yeast is not needed for the leafy bag test. (a) False (b) True
- 11.📘 What do we call plants giving out water vapour from their leaves? (a) reflection (b) digestion (c) transpiration (d) germination
- 12.🪴 Which part of a plant does this job: make food in sunlight? (a) roots (b) stem (c) flower (d) leaves
- 13.True or false: a magnet is needed for the leafy bag test. (a) False (b) True
- 14.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a few hours (c) a rubber band (d) a magnet
- 15.True or false: yeast is needed for the leafy bag test. (a) False (b) True
- 16.🪴 Which of these is a job of the stem? (a) make seeds (b) make food in sunlight (c) hold up the leaves (d) give out water vapour
- 17.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) turmeric powder (c) a magnet (d) sunlight
- 18.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) a clear plastic bag (c) vinegar (d) sunlight
- 19.⚖️ 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 time we wait (b) the kind of plant (c) sun or shade (d) amount of water drops
- 20.⚖️ 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 the one thing we change. (a) False (b) True
- 21.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) sunlight (c) a rubber band (d) turmeric powder
- 22.⚖️ 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 kept the same. (a) False (b) True
- 23.🪴 Through which part does a plant take in water from the soil? (a) the roots (b) the fruits (c) the leaves (d) the flowers
- 24.🪴 Which part of a plant does this job: hold the plant in soil? (a) leaves (b) stem (c) flower (d) roots
- 25.True or false: a battery cell is needed for the leafy bag test. (a) True (b) False
- 26.🧺 Do we need a few hours for the leafy bag test? (a) not needed (b) needed
- 27.True or false: carry water upward is a job of the roots. (a) False (b) True
- 28.🧺 Which of these is needed for the leafy bag test? (a) yeast (b) turmeric powder (c) a potted plant (d) a mirror
- 29.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) exactly the same (b) much less water (c) it fills with soil (d) much more water
- 30.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) the hot sunny day (b) both the same (c) neither of them (d) the cool cloudy day
- 31.True or false: sunlight is not needed for the leafy bag test. (a) True (b) False
- 32.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) sunlight (c) a clear plastic bag (d) yeast
- 33.⚖️ 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 kind of plant
- 34.🪴 Which of these is a job of the roots? (a) give out water vapour (b) hold up the leaves (c) carry water upward (d) hold the plant in soil
- 35.True or false: hold the plant in soil is a job of the roots. (a) True (b) False
- 36.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) roots (b) petals (c) stomata (d) veins
- 37.True or false: a few hours is needed for the leafy bag test. (a) True (b) False
- 38.⚖️ 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 measure it (b) we keep it the same (c) we change it
- 39.🧺 Do we need turmeric powder for the leafy bag test? (a) needed (b) not needed
- 40.🧺 Which of these is needed for the leafy bag test? (a) yeast (b) a few hours (c) a magnet (d) a battery cell
Answer key
- True
- amount of water drops
- a mirror
- False
- it can block breathing
- a rubber band
- make seeds
- it wilts and droops
- a mirror
- True
- transpiration
- leaves
- False
- a magnet
- False
- hold up the leaves
- sunlight
- vinegar
- sun or shade
- False
- turmeric powder
- True
- the roots
- roots
- False
- needed
- False
- a potted plant
- much less water
- the hot sunny day
- False
- yeast
- the kind of plant
- hold the plant in soil
- True
- stomata
- True
- we keep it the same
- not needed
- a few hours
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