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.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) vinegar (c) a potted plant (d) a few hours
- 2.🧺 Which of these is not needed for the leafy bag test? (a) a battery cell (b) a few hours (c) a potted plant (d) sunlight
- 3.🧺 Do we need yeast for the leafy bag test? (a) needed (b) not needed
- 4.🪴 Which part of a plant does this job: carry water upward? (a) stem (b) roots (c) flower (d) leaves
- 5.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) sunlight (c) a clear plastic bag (d) a magnet
- 6.True or false: hold up the leaves is a job of the leaves. (a) True (b) False
- 7.🧺 Do we need a battery cell for the leafy bag test? (a) needed (b) not needed
- 8.⚖️ 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
- 9.🛟 Why must a plastic bag never go over anyone’s head? (a) it can block breathing (b) it is too big (c) it changes colour (d) it gets wet
- 10.🛟 How should the plastic bag be tied around the branch? (a) as tight as possible (b) with sharp wire (c) with a hot glue gun (d) gently, not too tight
- 11.🪴 Which of these is a job of the flower? (a) hold up the leaves (b) carry water upward (c) make seeds (d) take in water from soil
- 12.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny water drops (b) tiny insects (c) salt crystals (d) nothing at all
- 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 the one thing we change. (a) True (b) False
- 14.⚖️ 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 measure it (b) we keep it the same (c) we change it
- 15.⚖️ 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 kind of plant (b) sun or shade (c) amount of water drops
- 16.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it flowers more (b) it grows faster (c) it turns blue (d) it wilts and droops
- 17.⚖️ 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 same kind of bag (c) the time we wait (d) amount of water drops
- 18.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the size of the plant is what we measure. (a) True (b) False
- 19.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) a rubber band (c) vinegar (d) a few hours
- 20.🧺 Do we need a magnet for the leafy bag test? (a) not needed (b) needed
- 21.⚖️ 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 size of the plant (b) the time we wait (c) sun or shade (d) amount of water drops
- 22.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the size of the plant is the one thing we change. (a) False (b) True
- 23.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “amount of water drops”? (a) we measure it (b) we change it (c) we keep it the same
- 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: make seeds is a job of the roots. (a) True (b) False
- 26.True or false: a mirror is needed for the leafy bag test. (a) False (b) True
- 27.True or false: give out water vapour is a job of the leaves. (a) True (b) False
- 28.True or false: take in water from soil is a job of the roots. (a) True (b) False
- 29.⚖️ 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 measure it (b) we change it (c) we keep it the same
- 30.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) a clear plastic bag (c) a rubber band (d) a battery cell
- 31.📘 What do we call plants giving out water vapour from their leaves? (a) transpiration (b) reflection (c) digestion (d) germination
- 32.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) sunlight (c) vinegar (d) a magnet
- 33.🪴 Which part of a plant does this job: take in water from soil? (a) stem (b) flower (c) roots (d) leaves
- 34.True or false: a battery cell is not needed for the leafy bag test. (a) False (b) True
- 35.🪴 Which part of a plant does this job: make seeds? (a) roots (b) stem (c) leaves (d) flower
- 36.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much less water (b) exactly the same (c) much more water (d) it fills with soil
- 37.🪴 Which part of a plant does this job: give out water vapour? (a) stem (b) roots (c) flower (d) leaves
- 38.🧺 Do we need a mirror for the leafy bag test? (a) not needed (b) needed
- 39.🪴 Through which part does a plant take in water from the soil? (a) the fruits (b) the leaves (c) the flowers (d) the roots
- 40.🔮 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) the hot sunny day (d) both the same
Answer key
- vinegar
- a battery cell
- not needed
- stem
- a magnet
- False
- not needed
- False
- it can block breathing
- gently, not too tight
- make seeds
- tiny water drops
- False
- we change it
- the kind of plant
- it wilts and droops
- amount of water drops
- False
- vinegar
- not needed
- sun or shade
- False
- we measure it
- roots
- False
- False
- True
- True
- we keep it the same
- a battery cell
- transpiration
- sunlight
- roots
- True
- flower
- much less water
- leaves
- not needed
- the roots
- the hot sunny day
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