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.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a mirror (c) a rubber band (d) a clear plastic bag
- 2.⚖️ 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
- 3.True or false: hold the plant in soil is a job of the roots. (a) False (b) True
- 4.⚖️ 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 measure it (c) we change it
- 5.🔮 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
- 6.🧺 Which of these is needed for the leafy bag test? (a) a battery cell (b) turmeric powder (c) vinegar (d) a clear plastic bag
- 7.🪴 Through which part does a plant take in water from the soil? (a) the leaves (b) the flowers (c) the roots (d) the fruits
- 8.True or false: turmeric powder is not needed for the leafy bag test. (a) False (b) True
- 9.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) stomata (b) petals (c) roots (d) veins
- 10.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny insects (b) nothing at all (c) salt crystals (d) tiny water drops
- 11.🪴 Which part of a plant does this job: take in water from soil? (a) roots (b) stem (c) flower (d) leaves
- 12.🪴 Which of these is a job of the leaves? (a) carry water upward (b) make seeds (c) give out water vapour (d) hold up the leaves
- 13.🪴 Which of these is a job of the stem? (a) hold up the leaves (b) hold the plant in soil (c) make food in sunlight (d) take in water from soil
- 14.🪴 Which part of a plant does this job: make food in sunlight? (a) flower (b) stem (c) roots (d) leaves
- 15.True or false: a rubber band is needed for the leafy bag test. (a) False (b) True
- 16.🪴 Which part of a plant does this job: give out water vapour? (a) stem (b) leaves (c) roots (d) flower
- 17.🛟 Why must a plastic bag never go over anyone’s head? (a) it gets wet (b) it changes colour (c) it is too big (d) it can block breathing
- 18.🧺 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) sunlight
- 19.True or false: carry water upward is a job of the stem. (a) True (b) False
- 20.🧺 Do we need turmeric powder for the leafy bag test? (a) needed (b) not needed
- 21.🧺 Do we need a few hours for the leafy bag test? (a) not needed (b) needed
- 22.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a potted plant (c) a battery cell (d) a clear plastic bag
- 23.🪴 Which of these is a job of the roots? (a) make food in sunlight (b) carry water upward (c) hold up the leaves (d) hold the plant in soil
- 24.🪴 Which part of a plant does this job: hold up the leaves? (a) stem (b) flower (c) leaves (d) roots
- 25.⚖️ 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 same kind of bag (c) amount of water drops (d) sun or shade
- 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.True or false: hold the plant in soil is a job of the stem. (a) True (b) False
- 28.True or false: yeast is not 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) False (b) True
- 30.⚖️ 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
- 31.🧺 Which of these is not needed for the leafy bag test? (a) a rubber band (b) turmeric powder (c) a clear plastic bag (d) a few hours
- 32.🛟 How should the plastic bag be tied around the branch? (a) with sharp wire (b) gently, not too tight (c) with a hot glue gun (d) as tight as possible
- 33.🧺 Do we need vinegar for the leafy bag test? (a) needed (b) not needed
- 34.⚖️ 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) False (b) True
- 35.🧺 Do we need a battery cell for the leafy bag test? (a) not needed (b) needed
- 36.⚖️ 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) the same kind of bag (c) sun or shade (d) amount of water drops
- 37.🧺 Which of these is needed for the leafy bag test? (a) a battery cell (b) a potted plant (c) a mirror (d) a magnet
- 38.⚖️ 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
- 39.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) neither of them (b) the cool cloudy day (c) the hot sunny day (d) both the same
- 40.⚖️ 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 keep it the same (b) we measure it (c) we change it
Answer key
- a mirror
- we measure it
- True
- we keep it the same
- it wilts and droops
- a clear plastic bag
- the roots
- True
- stomata
- tiny water drops
- roots
- give out water vapour
- hold up the leaves
- leaves
- True
- leaves
- it can block breathing
- vinegar
- True
- not needed
- needed
- a battery cell
- hold the plant in soil
- stem
- amount of water drops
- False
- False
- True
- True
- False
- turmeric powder
- gently, not too tight
- not needed
- True
- not needed
- sun or shade
- a potted plant
- we change it
- the hot sunny day
- we keep it the same
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