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