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.🧺 Do we need a mirror for the leafy bag test? (a) needed (b) not needed
- 2.⚖️ 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 keep it the same (b) we change it (c) we measure it
- 3.🪴 Through which part does a plant take in water from the soil? (a) the fruits (b) the leaves (c) the roots (d) the flowers
- 4.⚖️ 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 size of the plant (d) the same kind of bag
- 5.⚖️ 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) sun or shade (b) the same kind of bag (c) the kind of plant (d) the time we wait
- 6.True or false: turmeric powder is not needed for the leafy bag test. (a) False (b) True
- 7.📘 What do we call plants giving out water vapour from their leaves? (a) transpiration (b) reflection (c) germination (d) digestion
- 8.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) vinegar (b) a few hours (c) a potted plant (d) a rubber band
- 9.🧺 Do we need turmeric powder for the leafy bag test? (a) not needed (b) needed
- 10.⚖️ 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 keep it the same (b) we change it (c) we measure it
- 11.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) yeast (b) sunlight (c) a clear plastic bag (d) a few hours
- 12.🧺 Do we need a clear plastic bag for the leafy bag test? (a) not needed (b) needed
- 13.🧺 Which of these is needed for the leafy bag test? (a) a potted plant (b) a mirror (c) turmeric powder (d) vinegar
- 14.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it turns blue (b) it grows faster (c) it wilts and droops (d) it flowers more
- 15.🧺 Which of these is not needed for the leafy bag test? (a) a few hours (b) sunlight (c) a potted plant (d) vinegar
- 16.🧺 Do we need a rubber band for the leafy bag test? (a) not needed (b) needed
- 17.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a mirror (c) a rubber band (d) a potted plant
- 18.⚖️ 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
- 19.🪴 Which of these is a job of the stem? (a) hold up the leaves (b) give out water vapour (c) take in water from soil (d) make seeds
- 20.⚖️ 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) True (b) False
- 21.🪴 Which of these is a job of the leaves? (a) hold up the leaves (b) hold the plant in soil (c) take in water from soil (d) give out water vapour
- 22.🪴 Which part of a plant does this job: make food in sunlight? (a) flower (b) leaves (c) roots (d) stem
- 23.⚖️ 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 change it (b) we keep it the same (c) we measure it
- 24.True or false: hold the plant in soil is a job of the roots. (a) False (b) True
- 25.⚖️ 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) False (b) True
- 26.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) a potted plant (c) a magnet (d) a few hours
- 27.🛟 Why must a plastic bag never go over anyone’s head? (a) it can block breathing (b) it gets wet (c) it is too big (d) it changes colour
- 28.True or false: take in water from soil is a job of the flower. (a) False (b) True
- 29.True or false: a few hours is not needed for the leafy bag test. (a) True (b) False
- 30.True or false: take in water from soil is a job of the roots. (a) True (b) False
- 31.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) a battery cell (c) a clear plastic bag (d) a few hours
- 32.True or false: make seeds is a job of the flower. (a) True (b) False
- 33.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) stomata (b) roots (c) veins (d) petals
- 34.True or false: hold up the leaves is a job of the stem. (a) False (b) True
- 35.🪴 Which of these is a job of the stem? (a) carry water upward (b) make food in sunlight (c) give out water vapour (d) hold the plant in soil
- 36.🧺 Do we need a battery cell for the leafy bag test? (a) needed (b) not needed
- 37.🛟 How should the plastic bag be tied around the branch? (a) as tight as possible (b) gently, not too tight (c) with sharp wire (d) with a hot glue gun
- 38.🧺 Do we need sunlight for the leafy bag test? (a) not needed (b) needed
- 39.🪴 Which part of a plant does this job: hold up the leaves? (a) flower (b) stem (c) roots (d) leaves
- 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) False (b) True
Answer key
- not needed
- we keep it the same
- the roots
- amount of water drops
- sun or shade
- True
- transpiration
- vinegar
- not needed
- we keep it the same
- yeast
- needed
- a potted plant
- it wilts and droops
- vinegar
- needed
- a mirror
- the kind of plant
- hold up the leaves
- False
- give out water vapour
- leaves
- we change it
- True
- True
- a magnet
- it can block breathing
- False
- False
- True
- a battery cell
- True
- stomata
- True
- carry water upward
- not needed
- gently, not too tight
- needed
- stem
- True
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