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 leaves (b) the flowers (c) the fruits (d) the roots
- 2.🪴 Which of these is a job of the leaves? (a) hold the plant in soil (b) hold up the leaves (c) make seeds (d) give out water vapour
- 3.🧺 Do we need yeast for the leafy bag test? (a) needed (b) not needed
- 4.⚖️ 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
- 5.🧺 Do we need a magnet for the leafy bag test? (a) not needed (b) needed
- 6.⚖️ 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) False (b) True
- 7.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a few hours (c) a potted plant (d) a magnet
- 8.⚖️ 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 measure it (c) we change it
- 9.True or false: a potted plant is needed for the leafy bag test. (a) False (b) True
- 10.⚖️ 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 kind of plant
- 11.⚖️ 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
- 12.🛟 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
- 13.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) veins (b) roots (c) stomata (d) petals
- 14.🧺 Which of these is not needed for the leafy bag test? (a) a few hours (b) a potted plant (c) a magnet (d) a clear plastic bag
- 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) sun or shade (c) the kind of plant (d) the size of the plant
- 16.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny insects (b) nothing at all (c) tiny water drops (d) salt crystals
- 17.⚖️ 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 what we measure. (a) False (b) True
- 18.🔮 Predict: which gives more drops in the bag — a hot sunny day or a cool cloudy day? (a) the hot sunny day (b) both the same (c) neither of them (d) the cool cloudy day
- 19.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) a few hours (c) yeast (d) a mirror
- 20.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it grows faster (b) it turns blue (c) it flowers more (d) it wilts and droops
- 21.🧺 Which of these is not needed for the leafy bag test? (a) a rubber band (b) a few hours (c) a potted plant (d) yeast
- 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) the same kind of bag (b) the size of the plant (c) sun or shade (d) amount of water drops
- 23.🪴 Where did the water inside the bag come from? (a) the rubber band (b) the rain (c) the leaves (d) the plastic
- 24.🧺 Do we need sunlight for the leafy bag test? (a) not needed (b) needed
- 25.🪴 Which part of a plant does this job: take in water from soil? (a) roots (b) flower (c) stem (d) leaves
- 26.True or false: a magnet is needed for the leafy bag test. (a) True (b) False
- 27.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a few hours (c) a potted plant (d) a mirror
- 28.🧺 Do we need a potted plant for the leafy bag test? (a) not needed (b) needed
- 29.⚖️ 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
- 30.🧺 Do we need a rubber band for the leafy bag test? (a) not needed (b) needed
- 31.🧺 Which of these is needed for the leafy bag test? (a) yeast (b) vinegar (c) a clear plastic bag (d) a magnet
- 32.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much more water (b) much less water (c) exactly the same (d) it fills with soil
- 33.⚖️ 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
- 34.⚖️ 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
- 35.🪴 Which part of a plant does this job: hold the plant in soil? (a) flower (b) roots (c) stem (d) leaves
- 36.🪴 Which part of a plant does this job: give out water vapour? (a) flower (b) roots (c) leaves (d) stem
- 37.🧺 Do we need a clear plastic bag for the leafy bag test? (a) not needed (b) needed
- 38.🧺 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 potted plant (d) turmeric powder
- 39.⚖️ 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 measure it (c) we keep it the same
- 40.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a rubber band (c) yeast (d) a potted plant
Answer key
- the roots
- give out water vapour
- not needed
- True
- not needed
- True
- a magnet
- we change it
- True
- the kind of plant
- we measure it
- it can block breathing
- stomata
- a magnet
- sun or shade
- tiny water drops
- False
- the hot sunny day
- a few hours
- it wilts and droops
- yeast
- amount of water drops
- the leaves
- needed
- roots
- False
- a mirror
- needed
- False
- needed
- a clear plastic bag
- much less water
- True
- True
- roots
- leaves
- needed
- turmeric powder
- we keep it the same
- yeast
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