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: the size of the plant is what we measure. (a) False (b) True
- 2.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) the cool cloudy day (b) the hot sunny day (c) neither of them (d) both the same
- 3.⚖️ 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
- 4.🪴 Which of these is a job of the leaves? (a) hold up the leaves (b) take in water from soil (c) give out water vapour (d) carry water upward
- 5.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a mirror (b) sunlight (c) a clear plastic bag (d) a few hours
- 6.🧺 Do we need a rubber band for the leafy bag test? (a) not needed (b) needed
- 7.🪴 Which of these is a job of the roots? (a) hold the plant in soil (b) make food in sunlight (c) make seeds (d) give out water vapour
- 8.🧺 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) turmeric powder (d) a few hours
- 9.True or false: make food in sunlight is a job of the roots. (a) False (b) True
- 10.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) vinegar (c) a battery cell (d) sunlight
- 11.🧺 Which of these is needed for the leafy bag test? (a) vinegar (b) a mirror (c) a battery cell (d) a few hours
- 12.🧺 Do we need a clear plastic bag for the leafy bag test? (a) not needed (b) needed
- 13.⚖️ 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) sun or shade (b) the size of the plant (c) the time we wait (d) amount of water drops
- 14.🛟 Why must a plastic bag never go over anyone’s head? (a) it changes colour (b) it can block breathing (c) it gets wet (d) it is too big
- 15.True or false: hold up the leaves is a job of the stem. (a) True (b) False
- 16.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a rubber band (b) sunlight (c) vinegar (d) a clear plastic bag
- 17.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) a rubber band (c) a clear plastic bag (d) turmeric powder
- 18.⚖️ 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 kept the same. (a) True (b) False
- 19.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) stomata (b) veins (c) roots (d) petals
- 20.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny insects (b) tiny water drops (c) salt crystals (d) nothing at all
- 21.🪴 Which of these is a job of the roots? (a) carry water upward (b) hold up the leaves (c) make food in sunlight (d) take in water from soil
- 22.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: sun or shade is kept the same. (a) False (b) True
- 23.🧺 Which of these is needed for the leafy bag test? (a) a battery cell (b) a potted plant (c) a magnet (d) yeast
- 24.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) yeast (c) a clear plastic bag (d) a rubber band
- 25.⚖️ 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
- 26.True or false: a potted plant is needed for the leafy bag test. (a) False (b) True
- 27.🧺 Do we need turmeric powder for the leafy bag test? (a) needed (b) not needed
- 28.🪴 Which part of a plant does this job: hold the plant in soil? (a) stem (b) leaves (c) roots (d) flower
- 29.📘 What do we call plants giving out water vapour from their leaves? (a) germination (b) reflection (c) digestion (d) transpiration
- 30.🪴 Which part of a plant does this job: take in water from soil? (a) leaves (b) stem (c) flower (d) roots
- 31.True or false: a clear plastic bag is needed for the leafy bag test. (a) False (b) True
- 32.🧺 Do we need sunlight for the leafy bag test? (a) needed (b) not needed
- 33.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) a rubber band (c) a magnet (d) sunlight
- 34.🔮 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
- 35.⚖️ 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 change it (c) we keep it the same
- 36.True or false: take in water from soil is a job of the stem. (a) True (b) False
- 37.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) a battery cell (c) yeast (d) a rubber band
- 38.⚖️ 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
- 39.🧺 Do we need a mirror for the leafy bag test? (a) needed (b) not needed
- 40.🪴 Which of these is a job of the flower? (a) give out water vapour (b) make seeds (c) hold the plant in soil (d) carry water upward
Answer key
- False
- the hot sunny day
- False
- give out water vapour
- a mirror
- needed
- hold the plant in soil
- turmeric powder
- False
- sunlight
- a few hours
- needed
- sun or shade
- it can block breathing
- True
- vinegar
- turmeric powder
- True
- stomata
- tiny water drops
- take in water from soil
- False
- a potted plant
- yeast
- True
- True
- not needed
- roots
- transpiration
- roots
- True
- needed
- a magnet
- much less water
- we measure it
- False
- a rubber band
- we keep it the same
- not needed
- make seeds
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