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