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.⚖️ 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
- 2.🛟 Why must a plastic bag never go over anyone’s head? (a) it is too big (b) it can block breathing (c) it gets wet (d) it changes colour
- 3.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) salt crystals (b) tiny insects (c) nothing at all (d) tiny water drops
- 4.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it flowers more (b) it grows faster (c) it turns blue (d) it wilts and droops
- 5.🧺 Which of these is needed for the leafy bag test? (a) a rubber band (b) vinegar (c) turmeric powder (d) a magnet
- 6.True or false: make food in sunlight is a job of the leaves. (a) False (b) True
- 7.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) both the same (b) neither of them (c) the cool cloudy day (d) the hot sunny day
- 8.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) a mirror (c) turmeric powder (d) a potted plant
- 9.🧺 Do we need sunlight for the leafy bag test? (a) not needed (b) needed
- 10.🧺 Do we need a magnet for the leafy bag test? (a) not needed (b) needed
- 11.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a potted plant (c) a mirror (d) a clear plastic bag
- 12.🪴 Through which part does a plant take in water from the soil? (a) the flowers (b) the fruits (c) the leaves (d) the roots
- 13.True or false: yeast is needed for the leafy bag test. (a) False (b) True
- 14.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) turmeric powder (c) a rubber band (d) sunlight
- 15.🧺 Do we need yeast for the leafy bag test? (a) needed (b) not needed
- 16.⚖️ 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
- 17.True or false: make seeds is a job of the flower. (a) True (b) False
- 18.🪴 Which part of a plant does this job: take in water from soil? (a) stem (b) leaves (c) roots (d) flower
- 19.🪴 Which of these is a job of the roots? (a) carry water upward (b) give out water vapour (c) make food in sunlight (d) take in water from soil
- 20.🧺 Which of these is not needed for the leafy bag test? (a) a clear plastic bag (b) a few hours (c) a battery cell (d) a rubber band
- 21.⚖️ 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 time we wait (b) the kind of plant (c) the same kind of bag (d) sun or shade
- 22.True or false: a few hours is not needed for the leafy bag test. (a) True (b) False
- 23.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a rubber band (c) turmeric powder (d) sunlight
- 24.⚖️ 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
- 25.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) a few hours (c) a mirror (d) a battery cell
- 26.True or false: hold the plant in soil is a job of the flower. (a) True (b) False
- 27.⚖️ 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
- 28.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) a clear plastic bag (c) a magnet (d) a potted plant
- 29.🧺 Do we need a potted plant for the leafy bag test? (a) not needed (b) needed
- 30.⚖️ 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 kind of plant (c) amount of water drops
- 31.True or false: a clear plastic bag is needed for the leafy bag test. (a) False (b) True
- 32.⚖️ 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) True (b) False
- 33.🪴 Which of these is a job of the flower? (a) carry water upward (b) make seeds (c) give out water vapour (d) hold the plant in soil
- 34.📘 What do we call plants giving out water vapour from their leaves? (a) digestion (b) reflection (c) transpiration (d) germination
- 35.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a few hours (b) a potted plant (c) vinegar (d) sunlight
- 36.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a battery cell (b) a potted plant (c) sunlight (d) a clear plastic bag
- 37.🪴 Which part of a plant does this job: carry water upward? (a) leaves (b) stem (c) flower (d) roots
- 38.🪴 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 up the leaves
- 39.🪴 Where did the water inside the bag come from? (a) the rain (b) the leaves (c) the rubber band (d) the plastic
- 40.True or false: carry water upward is a job of the stem. (a) False (b) True
Answer key
- we keep it the same
- it can block breathing
- tiny water drops
- it wilts and droops
- a rubber band
- True
- the hot sunny day
- a potted plant
- needed
- not needed
- a mirror
- the roots
- False
- turmeric powder
- not needed
- we keep it the same
- True
- roots
- take in water from soil
- a battery cell
- sun or shade
- False
- turmeric powder
- False
- a few hours
- False
- False
- a magnet
- needed
- the kind of plant
- True
- True
- make seeds
- transpiration
- vinegar
- a battery cell
- stem
- make food in sunlight
- the leaves
- True
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