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 a job of the roots? (a) make seeds (b) carry water upward (c) take in water from soil (d) hold up the leaves
- 2.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) a few hours (c) vinegar (d) a rubber band
- 3.⚖️ 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
- 4.⚖️ 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 size of the plant (c) amount of water drops (d) the same kind of bag
- 5.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) exactly the same (b) much more water (c) it fills with soil (d) much less water
- 6.⚖️ 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
- 7.🧺 Do we need yeast for the leafy bag test? (a) not needed (b) needed
- 8.🛟 How should the plastic bag be tied around the branch? (a) with a hot glue gun (b) as tight as possible (c) with sharp wire (d) gently, not too tight
- 9.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) a clear plastic bag (c) vinegar (d) a mirror
- 10.⚖️ 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) True (b) False
- 11.🪴 Which part of a plant does this job: take in water from soil? (a) leaves (b) stem (c) flower (d) roots
- 12.True or false: make seeds is a job of the flower. (a) True (b) False
- 13.⚖️ 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
- 14.🧺 Do we need a potted plant for the leafy bag test? (a) not needed (b) needed
- 15.⚖️ 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) True (b) False
- 16.⚖️ 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 kept the same. (a) False (b) True
- 17.⚖️ 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
- 18.🛟 Why must a plastic bag never go over anyone’s head? (a) it changes colour (b) it is too big (c) it can block breathing (d) it gets wet
- 19.🪴 Which of these is a job of the stem? (a) make food in sunlight (b) give out water vapour (c) carry water upward (d) hold the plant in soil
- 20.True or false: yeast is not needed for the leafy bag test. (a) False (b) True
- 21.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) sunlight (c) yeast (d) a few hours
- 22.⚖️ 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
- 23.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) a rubber band (c) a battery cell (d) a magnet
- 24.🪴 Through which part does a plant take in water from the soil? (a) the flowers (b) the fruits (c) the roots (d) the leaves
- 25.⚖️ 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) the time we wait (c) amount of water drops
- 26.🪴 Which of these is a job of the flower? (a) make food in sunlight (b) give out water vapour (c) take in water from soil (d) make seeds
- 27.True or false: a potted plant is needed for the leafy bag test. (a) False (b) True
- 28.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the kind of plant is the one thing we change. (a) True (b) False
- 29.🧺 Do we need a battery cell for the leafy bag test? (a) not needed (b) needed
- 30.🪴 Which of these is a job of the roots? (a) carry water upward (b) hold the plant in soil (c) make seeds (d) give out water vapour
- 31.⚖️ 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
- 32.🧺 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 mirror (d) a potted plant
- 33.🪴 Which of these is a job of the leaves? (a) take in water from soil (b) make food in sunlight (c) carry water upward (d) hold the plant in soil
- 34.🪴 Which of these is a job of the stem? (a) take in water from soil (b) hold the plant in soil (c) make seeds (d) hold up the leaves
- 35.True or false: turmeric powder is not needed for the leafy bag test. (a) False (b) True
- 36.⚖️ 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) False (b) True
- 37.🪴 Which part of a plant does this job: make food in sunlight? (a) roots (b) stem (c) flower (d) leaves
- 38.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: sun or shade is what we measure. (a) True (b) False
- 39.⚖️ 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 measure it (b) we keep it the same (c) we change it
- 40.True or false: hold the plant in soil is a job of the flower. (a) True (b) False
Answer key
- take in water from soil
- vinegar
- we keep it the same
- sun or shade
- much less water
- we measure it
- not needed
- gently, not too tight
- a clear plastic bag
- True
- roots
- True
- we change it
- needed
- False
- True
- True
- it can block breathing
- carry water upward
- True
- yeast
- amount of water drops
- a rubber band
- the roots
- the time we wait
- make seeds
- True
- False
- not needed
- hold the plant in soil
- False
- a mirror
- make food in sunlight
- hold up the leaves
- True
- False
- leaves
- False
- we keep it the same
- False
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