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