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.🧺 Do we need sunlight for the leafy bag test? (a) not needed (b) needed
- 2.🛟 Why must a plastic bag never go over anyone’s head? (a) it changes colour (b) it can block breathing (c) it is too big (d) it gets wet
- 3.🪴 Which of these is a job of the flower? (a) make seeds (b) give out water vapour (c) hold the plant in soil (d) make food in sunlight
- 4.⚖️ 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
- 5.🪴 Which of these is a job of the stem? (a) take in water from soil (b) make seeds (c) give out water vapour (d) carry water upward
- 6.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) sunlight (b) a potted plant (c) a mirror (d) a rubber band
- 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) amount of water drops (b) sun or shade (c) the same kind of bag
- 8.⚖️ 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
- 9.True or false: hold up the leaves is a job of the leaves. (a) True (b) False
- 10.🛟 How should the plastic bag be tied around the branch? (a) gently, not too tight (b) as tight as possible (c) with sharp wire (d) with a hot glue gun
- 11.⚖️ 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
- 12.🧺 Which of these is needed for the leafy bag test? (a) a mirror (b) a magnet (c) a few hours (d) yeast
- 13.True or false: a mirror is not needed for the leafy bag test. (a) False (b) True
- 14.🧺 Do we need a clear plastic bag for the leafy bag test? (a) needed (b) not needed
- 15.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) sunlight (c) turmeric powder (d) a potted plant
- 16.🧺 Which of these is not needed for the leafy bag test? (a) sunlight (b) a magnet (c) a rubber band (d) a clear plastic bag
- 17.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) a rubber band (c) a magnet (d) a clear plastic bag
- 18.⚖️ 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) amount of water drops (b) the kind of plant (c) sun or shade
- 19.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a potted plant (c) a few hours (d) yeast
- 20.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) roots (b) petals (c) stomata (d) veins
- 21.🪴 Which part of a plant does this job: hold up the leaves? (a) roots (b) stem (c) flower (d) leaves
- 22.🧺 Which of these is needed for the leafy bag test? (a) turmeric powder (b) sunlight (c) a battery cell (d) a magnet
- 23.True or false: make food in sunlight is a job of the leaves. (a) True (b) False
- 24.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the same kind of bag”? (a) we keep it the same (b) we change it (c) we measure it
- 25.🪴 Which of these is a job of the roots? (a) carry water upward (b) make seeds (c) make food in sunlight (d) hold the plant in soil
- 26.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it turns blue (b) it flowers more (c) it grows faster (d) it wilts and droops
- 27.⚖️ 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
- 28.⚖️ 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) sun or shade (b) the same kind of bag (c) amount of water drops (d) the kind of plant
- 29.⚖️ 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 measure it (b) we change it (c) we keep it the same
- 30.True or false: carry water upward is a job of the stem. (a) True (b) False
- 31.🪴 Which of these is a job of the leaves? (a) make seeds (b) carry water upward (c) hold up the leaves (d) make food in sunlight
- 32.🧺 Which of these is needed for the leafy bag test? (a) a magnet (b) a potted plant (c) vinegar (d) a mirror
- 33.True or false: make food in sunlight is a job of the roots. (a) False (b) True
- 34.🧺 Do we need a battery cell for the leafy bag test? (a) not needed (b) needed
- 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) sunlight (d) a battery cell
- 36.🪴 Which part of a plant does this job: hold the plant in soil? (a) flower (b) stem (c) leaves (d) roots
- 37.True or false: turmeric powder is not needed for the leafy bag test. (a) True (b) False
- 38.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) salt crystals (b) tiny water drops (c) nothing at all (d) tiny insects
- 39.True or false: hold up the leaves is a job of the stem. (a) False (b) True
- 40.🧺 Do we need a mirror for the leafy bag test? (a) needed (b) not needed
Answer key
- needed
- it can block breathing
- make seeds
- we keep it the same
- carry water upward
- a mirror
- the same kind of bag
- True
- False
- gently, not too tight
- False
- a few hours
- True
- needed
- turmeric powder
- a magnet
- a magnet
- the kind of plant
- yeast
- stomata
- stem
- sunlight
- True
- we keep it the same
- hold the plant in soil
- it wilts and droops
- we change it
- amount of water drops
- we keep it the same
- True
- make food in sunlight
- a potted plant
- False
- not needed
- a battery cell
- roots
- True
- tiny water drops
- True
- not needed
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