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