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