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.True or false: take in water from soil is a job of the leaves. (a) False (b) True
- 2.🧺 Do we need a potted plant for the leafy bag test? (a) not needed (b) needed
- 3.⚖️ 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 time we wait (b) amount of water drops (c) sun or shade
- 4.⚖️ 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
- 5.True or false: turmeric powder is needed for the leafy bag test. (a) True (b) False
- 6.🪴 Where did the water inside the bag come from? (a) the rain (b) the plastic (c) the rubber band (d) the leaves
- 7.🪴 Which part of a plant does this job: take in water from soil? (a) flower (b) leaves (c) stem (d) roots
- 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.🔮 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
- 10.🛟 Why must a plastic bag never go over anyone’s head? (a) it is too big (b) it can block breathing (c) it changes colour (d) it gets wet
- 11.⚖️ 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
- 12.🧺 Which of these is not needed for the leafy bag test? (a) sunlight (b) a potted plant (c) a rubber band (d) a battery cell
- 13.🪴 Which part of a plant does this job: hold up the leaves? (a) stem (b) roots (c) flower (d) leaves
- 14.🔮 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
- 15.True or false: give out water vapour is a job of the leaves. (a) False (b) True
- 16.🧺 Which of these is not needed for the leafy bag test? (a) a potted plant (b) turmeric powder (c) a clear plastic bag (d) a rubber band
- 17.True or false: a mirror is not needed for the leafy bag test. (a) False (b) True
- 18.⚖️ 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 size of the plant (b) the same kind of bag (c) the kind of plant (d) sun or shade
- 19.📘 What do we call plants giving out water vapour from their leaves? (a) transpiration (b) germination (c) digestion (d) reflection
- 20.🪴 Which of these is a job of the roots? (a) take in water from soil (b) carry water upward (c) give out water vapour (d) make seeds
- 21.🪴 Which part of a plant does this job: hold the plant in soil? (a) roots (b) flower (c) stem (d) leaves
- 22.True or false: a battery cell is needed for the leafy bag test. (a) True (b) False
- 23.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a potted plant (b) a mirror (c) a clear plastic bag (d) a few hours
- 24.⚖️ 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 what we measure. (a) True (b) False
- 25.🧺 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 few hours
- 26.True or false: a few hours is needed for the leafy bag test. (a) False (b) True
- 27.🧺 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) a mirror
- 28.True or false: make food in sunlight is a job of the stem. (a) False (b) True
- 29.True or false: a rubber band is needed for the leafy bag test. (a) False (b) True
- 30.🛟 How should the plastic bag be tied around the branch? (a) with a hot glue gun (b) with sharp wire (c) gently, not too tight (d) as tight as possible
- 31.🧺 Do we need a clear plastic bag for the leafy bag test? (a) needed (b) not needed
- 32.⚖️ 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 the one thing we change. (a) True (b) False
- 33.True or false: a few hours is not needed for the leafy bag test. (a) False (b) True
- 34.🧺 Which of these is not needed for the leafy bag test? (a) yeast (b) a few hours (c) a clear plastic bag (d) sunlight
- 35.📘 Leaves have tiny holes that let out water vapour. What are they called? (a) stomata (b) petals (c) roots (d) veins
- 36.🪴 Which of these is a job of the leaves? (a) hold up the leaves (b) make seeds (c) give out water vapour (d) take in water from soil
- 37.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: sun or shade is what we measure. (a) False (b) True
- 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.🪴 Which part of a plant does this job: make seeds? (a) stem (b) leaves (c) flower (d) roots
- 40.⚖️ 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 what we measure. (a) False (b) True
Answer key
- False
- needed
- the time we wait
- True
- False
- the leaves
- roots
- we change it
- much less water
- it can block breathing
- True
- a battery cell
- stem
- it wilts and droops
- True
- turmeric powder
- True
- sun or shade
- transpiration
- take in water from soil
- roots
- False
- a mirror
- False
- yeast
- True
- a mirror
- False
- True
- gently, not too tight
- needed
- False
- False
- yeast
- stomata
- give out water vapour
- False
- we keep it the same
- flower
- True
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