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 potted plant (c) a mirror (d) a few hours
- 2.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a potted plant (c) yeast (d) a clear plastic bag
- 3.True or false: a rubber band is not needed for the leafy bag test. (a) True (b) False
- 4.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) vinegar (b) sunlight (c) a potted plant (d) a rubber band
- 5.🪴 Which of these is a job of the leaves? (a) hold up the leaves (b) make seeds (c) take in water from soil (d) make food in sunlight
- 6.⚖️ 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 size of the plant (c) amount of water drops
- 7.True or false: carry water upward is a job of the flower. (a) True (b) False
- 8.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) the hot sunny day (b) neither of them (c) both the same (d) the cool cloudy day
- 9.🪴 Which of these is a job of the flower? (a) give out water vapour (b) hold up the leaves (c) hold the plant in soil (d) make seeds
- 10.True or false: turmeric powder is not needed for the leafy bag test. (a) True (b) False
- 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 the one thing we change. (a) False (b) True
- 12.🛟 Why must a plastic bag never go over anyone’s head? (a) it gets wet (b) it can block breathing (c) it changes colour (d) it is too big
- 13.🧺 Do we need turmeric powder for the leafy bag test? (a) needed (b) not needed
- 14.🧺 Do we need a clear plastic bag for the leafy bag test? (a) needed (b) not needed
- 15.🪴 Where did the water inside the bag come from? (a) the rain (b) the rubber band (c) the leaves (d) the plastic
- 16.🪴 Which part of a plant does this job: hold the plant in soil? (a) leaves (b) flower (c) stem (d) roots
- 17.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the same kind of bag”? (a) we change it (b) we measure it (c) we keep it the same
- 18.⚖️ 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 change it (b) we keep it the same (c) we measure it
- 19.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a battery cell (b) a clear plastic bag (c) sunlight (d) a few hours
- 20.🪴 Through which part does a plant take in water from the soil? (a) the fruits (b) the roots (c) the flowers (d) the leaves
- 21.True or false: make food in sunlight is a job of the flower. (a) False (b) True
- 22.🧺 Do we need a battery cell for the leafy bag test? (a) needed (b) not needed
- 23.True or false: make seeds is a job of the stem. (a) True (b) False
- 24.🧺 Do we need a mirror for the leafy bag test? (a) not needed (b) needed
- 25.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) a magnet (c) a rubber band (d) a few hours
- 26.🧺 Which of these is needed for the leafy bag test? (a) a battery cell (b) a clear plastic bag (c) yeast (d) vinegar
- 27.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much more water (b) exactly the same (c) much less water (d) it fills with soil
- 28.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) turmeric powder (c) a rubber band (d) a potted plant
- 29.⚖️ 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) False (b) True
- 30.True or false: turmeric powder is needed for the leafy bag test. (a) True (b) False
- 31.🧺 Do we need a potted plant for the leafy bag test? (a) needed (b) not needed
- 32.True or false: give out water vapour is a job of the leaves. (a) False (b) True
- 33.🛟 How should the plastic bag be tied around the branch? (a) with sharp wire (b) gently, not too tight (c) as tight as possible (d) with a hot glue gun
- 34.🪴 Which of these is a job of the stem? (a) take in water from soil (b) give out water vapour (c) make food in sunlight (d) carry water upward
- 35.🧺 Which of these is needed for the leafy bag test? (a) yeast (b) vinegar (c) a rubber band (d) turmeric powder
- 36.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) nothing at all (b) tiny water drops (c) tiny insects (d) salt crystals
- 37.⚖️ 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) sun or shade (c) the same kind of bag (d) the time we wait
- 38.🧺 Do we need a magnet for the leafy bag test? (a) not needed (b) needed
- 39.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) stomata (b) veins (c) roots (d) petals
- 40.🪴 Which part of a plant does this job: make food in sunlight? (a) flower (b) roots (c) stem (d) leaves
Answer key
- a mirror
- yeast
- False
- vinegar
- make food in sunlight
- the size of the plant
- False
- the hot sunny day
- make seeds
- True
- True
- it can block breathing
- not needed
- needed
- the leaves
- roots
- we keep it the same
- we keep it the same
- a battery cell
- the roots
- False
- not needed
- False
- not needed
- a magnet
- a clear plastic bag
- much less water
- turmeric powder
- False
- False
- needed
- True
- gently, not too tight
- carry water upward
- a rubber band
- tiny water drops
- sun or shade
- not needed
- stomata
- leaves
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