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? True or false: amount of water drops is the one thing we change. (a) True (b) False
- 2.⚖️ 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) False (b) True
- 3.🪴 Which part of a plant does this job: hold up the leaves? (a) roots (b) leaves (c) flower (d) stem
- 4.⚖️ 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
- 5.⚖️ 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 what we measure. (a) True (b) False
- 6.🪴 Which part of a plant does this job: hold the plant in soil? (a) stem (b) flower (c) leaves (d) roots
- 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) the same kind of bag (b) sun or shade (c) amount of water drops
- 8.⚖️ 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 kept the same. (a) True (b) False
- 9.🪴 Which part of a plant does this job: make seeds? (a) stem (b) roots (c) leaves (d) flower
- 10.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny water drops (b) tiny insects (c) nothing at all (d) salt crystals
- 11.🧺 Do we need sunlight for the leafy bag test? (a) needed (b) not needed
- 12.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a battery cell (b) a potted plant (c) a few hours (d) a clear plastic bag
- 13.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it flowers more (b) it wilts and droops (c) it grows faster (d) it turns blue
- 14.True or false: carry water upward is a job of the roots. (a) False (b) True
- 15.🧺 Do we need a potted plant for the leafy bag test? (a) needed (b) not needed
- 16.True or false: carry water upward is a job of the flower. (a) True (b) False
- 17.🪴 Which part of a plant does this job: take in water from soil? (a) flower (b) stem (c) leaves (d) roots
- 18.🛟 How should the plastic bag be tied around the branch? (a) as tight as possible (b) gently, not too tight (c) with sharp wire (d) with a hot glue gun
- 19.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a magnet (b) a few hours (c) a clear plastic bag (d) a rubber band
- 20.🪴 Which of these is a job of the leaves? (a) hold the plant in soil (b) carry water upward (c) hold up the leaves (d) give out water vapour
- 21.🪴 Which of these is a job of the flower? (a) carry water upward (b) hold the plant in soil (c) give out water vapour (d) make seeds
- 22.⚖️ 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) amount of water drops (b) sun or shade (c) the size of the plant (d) the kind of plant
- 23.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a clear plastic bag (c) a mirror (d) a potted plant
- 24.True or false: carry water upward is a job of the stem. (a) True (b) False
- 25.🧺 Which of these is needed for the leafy bag test? (a) vinegar (b) sunlight (c) a magnet (d) a mirror
- 26.🪴 Which part of a plant does this job: give out water vapour? (a) stem (b) roots (c) flower (d) leaves
- 27.🪴 Which of these is a job of the roots? (a) make seeds (b) make food in sunlight (c) hold up the leaves (d) hold the plant in soil
- 28.True or false: give out water vapour is a job of the leaves. (a) True (b) False
- 29.🪴 Where did the water inside the bag come from? (a) the leaves (b) the plastic (c) the rubber band (d) the rain
- 30.🧺 Do we need a battery cell for the leafy bag test? (a) needed (b) not needed
- 31.🧺 Do we need a few hours for the leafy bag test? (a) not needed (b) needed
- 32.🧺 Do we need a clear plastic bag for the leafy bag test? (a) not needed (b) needed
- 33.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) a rubber band (c) a mirror (d) a magnet
- 34.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) a magnet (c) yeast (d) a potted plant
- 35.🧺 Which of these is needed for the leafy bag test? (a) yeast (b) turmeric powder (c) vinegar (d) a few hours
- 36.True or false: a mirror is not needed for the leafy bag test. (a) False (b) True
- 37.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) both the same (b) the hot sunny day (c) the cool cloudy day (d) neither of them
- 38.🔮 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) it fills with soil (d) much less water
- 39.🪴 Which of these is a job of the stem? (a) carry water upward (b) hold the plant in soil (c) make food in sunlight (d) take in water from soil
- 40.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) a potted plant (c) yeast (d) sunlight
Answer key
- False
- True
- stem
- True
- False
- roots
- the same kind of bag
- True
- flower
- tiny water drops
- needed
- a battery cell
- it wilts and droops
- False
- needed
- False
- roots
- gently, not too tight
- a magnet
- give out water vapour
- make seeds
- amount of water drops
- a mirror
- True
- sunlight
- leaves
- hold the plant in soil
- True
- the leaves
- not needed
- needed
- needed
- a rubber band
- a potted plant
- a few hours
- True
- the hot sunny day
- much less water
- carry water upward
- yeast
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