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