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.🪴 Through which part does a plant take in water from the soil? (a) the flowers (b) the roots (c) the leaves (d) the fruits
- 2.⚖️ 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 what we measure. (a) False (b) True
- 3.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it turns blue (b) it flowers more (c) it wilts and droops (d) it grows faster
- 4.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) yeast (c) a magnet (d) a clear plastic bag
- 5.⚖️ 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 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) vinegar (b) a rubber band (c) a clear plastic bag (d) a potted plant
- 7.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) both the same (b) the cool cloudy day (c) neither of them (d) the hot sunny day
- 8.⚖️ 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) amount of water drops (c) sun or shade (d) the same kind of bag
- 9.⚖️ 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 measure it (c) we keep it the same
- 10.True or false: a few hours is needed for the leafy bag test. (a) False (b) True
- 11.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the size of the plant is what we measure. (a) False (b) True
- 12.⚖️ 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
- 13.🧺 Which of these is not needed for the leafy bag test? (a) a rubber band (b) a clear plastic bag (c) turmeric powder (d) a potted plant
- 14.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a few hours (c) a battery cell (d) a potted plant
- 15.⚖️ 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 kind of plant (c) the same kind of bag (d) sun or shade
- 16.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) exactly the same (b) much more water (c) much less water (d) it fills with soil
- 17.True or false: sunlight is not needed for the leafy bag test. (a) False (b) True
- 18.🧺 Do we need a battery cell for the leafy bag test? (a) needed (b) not needed
- 19.🪴 Where did the water inside the bag come from? (a) the plastic (b) the rubber band (c) the leaves (d) the rain
- 20.🧺 Do we need a mirror for the leafy bag test? (a) not needed (b) needed
- 21.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) yeast (c) sunlight (d) a potted plant
- 22.🛟 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
- 23.🧺 Do we need a rubber band for the leafy bag test? (a) not needed (b) needed
- 24.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a rubber band (c) a clear plastic bag (d) yeast
- 25.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the size of the plant is kept the same. (a) False (b) True
- 26.🪴 Which part of a plant does this job: give out water vapour? (a) stem (b) leaves (c) flower (d) roots
- 27.🧺 Which of these is not needed for the leafy bag test? (a) a battery cell (b) a rubber band (c) a few hours (d) a potted plant
- 28.True or false: a clear plastic bag is needed for the leafy bag test. (a) False (b) True
- 29.⚖️ 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 keep it the same (c) we change it
- 30.True or false: a rubber band is not needed for the leafy bag test. (a) False (b) True
- 31.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) a mirror (c) a clear plastic bag (d) sunlight
- 32.🪴 Which of these is a job of the roots? (a) take in water from soil (b) make food in sunlight (c) give out water vapour (d) carry water upward
- 33.⚖️ 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 time we wait
- 34.True or false: a potted plant is not needed for the leafy bag test. (a) True (b) False
- 35.🧺 Which of these is not needed for the leafy bag test? (a) a rubber band (b) a clear plastic bag (c) a magnet (d) sunlight
- 36.🧺 Do we need sunlight for the leafy bag test? (a) not needed (b) needed
- 37.🛟 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
- 38.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) petals (b) veins (c) stomata (d) roots
- 39.True or false: carry water upward is a job of the roots. (a) True (b) False
- 40.🧺 Which of these is needed for the leafy bag test? (a) yeast (b) a magnet (c) a potted plant (d) turmeric powder
Answer key
- the roots
- False
- it wilts and droops
- a clear plastic bag
- we keep it the same
- vinegar
- the hot sunny day
- amount of water drops
- we keep it the same
- True
- False
- we change it
- turmeric powder
- a battery cell
- sun or shade
- much less water
- False
- not needed
- the leaves
- not needed
- yeast
- gently, not too tight
- needed
- yeast
- True
- leaves
- a battery cell
- True
- we measure it
- False
- a mirror
- take in water from soil
- the time we wait
- False
- a magnet
- needed
- it can block breathing
- stomata
- False
- a potted plant
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