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.True or false: sunlight is not needed for the leafy bag test. (a) True (b) False
- 2.🪴 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
- 3.🛟 How should the plastic bag be tied around the branch? (a) gently, not too tight (b) as tight as possible (c) with sharp wire (d) with a hot glue gun
- 4.🛟 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
- 5.True or false: make seeds is a job of the leaves. (a) False (b) True
- 6.🧺 Which of these is not needed for the leafy bag test? (a) a rubber band (b) a mirror (c) a potted plant (d) a clear plastic bag
- 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 same kind of bag (c) sun or shade
- 8.True or false: carry water upward is a job of the stem. (a) False (b) True
- 9.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) petals (b) veins (c) roots (d) stomata
- 10.🪴 Where did the water inside the bag come from? (a) the plastic (b) the rubber band (c) the rain (d) the leaves
- 11.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) a battery cell (c) turmeric powder (d) a potted plant
- 12.🧺 Do we need a magnet for the leafy bag test? (a) not needed (b) needed
- 13.🪴 Which part of a plant does this job: make seeds? (a) flower (b) roots (c) stem (d) leaves
- 14.⚖️ 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
- 15.⚖️ 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 time we wait (c) the same kind of bag (d) amount of water drops
- 16.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) turmeric powder (c) a few hours (d) a rubber band
- 17.True or false: a few hours is not needed for the leafy bag test. (a) True (b) False
- 18.True or false: sunlight is needed for the leafy bag test. (a) True (b) False
- 19.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) a mirror (c) a battery cell (d) sunlight
- 20.🪴 Which of these is a job of the flower? (a) carry water upward (b) make food in sunlight (c) take in water from soil (d) make seeds
- 21.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a magnet (b) a potted plant (c) a rubber band (d) sunlight
- 22.⚖️ 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 time we wait (c) the kind of plant (d) sun or shade
- 23.True or false: take in water from soil is a job of the stem. (a) False (b) True
- 24.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) neither of them (b) the hot sunny day (c) the cool cloudy day (d) both the same
- 25.🪴 Which part of a plant does this job: take in water from soil? (a) flower (b) stem (c) leaves (d) roots
- 26.🪴 Which part of a plant does this job: give out water vapour? (a) roots (b) flower (c) stem (d) leaves
- 27.🧺 Do we need a mirror for the leafy bag test? (a) needed (b) not needed
- 28.⚖️ 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 change it (b) we measure it (c) we keep it the same
- 29.🪴 Which part of a plant does this job: carry water upward? (a) roots (b) leaves (c) flower (d) stem
- 30.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) vinegar (c) sunlight (d) a rubber band
- 31.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) it fills with soil (b) much less water (c) exactly the same (d) much more water
- 32.⚖️ 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
- 33.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) a mirror (c) a battery cell (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 “the kind of plant”? (a) we change it (b) we keep it the same (c) we measure it
- 35.🧺 Which of these is not needed for the leafy bag test? (a) a few hours (b) a magnet (c) a clear plastic bag (d) a potted plant
- 36.True or false: turmeric powder is needed for the leafy bag test. (a) True (b) False
- 37.📘 What do we call plants giving out water vapour from their leaves? (a) germination (b) digestion (c) reflection (d) transpiration
- 38.🪴 Which of these is a job of the stem? (a) hold up the leaves (b) take in water from soil (c) give out water vapour (d) make food in sunlight
- 39.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) yeast (b) a clear plastic bag (c) a potted plant (d) a few hours
- 40.🪴 Which of these is a job of the leaves? (a) make seeds (b) take in water from soil (c) make food in sunlight (d) hold the plant in soil
Answer key
- False
- give out water vapour
- gently, not too tight
- it can block breathing
- False
- a mirror
- the same kind of bag
- True
- stomata
- the leaves
- a potted plant
- not needed
- flower
- True
- amount of water drops
- turmeric powder
- False
- True
- sunlight
- make seeds
- a magnet
- sun or shade
- False
- the hot sunny day
- roots
- leaves
- not needed
- we keep it the same
- stem
- vinegar
- much less water
- False
- a rubber band
- we keep it the same
- a magnet
- False
- transpiration
- hold up the leaves
- yeast
- make food in sunlight
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