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