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